# EPIC Online Technology Meeting on Emerging Trends in Laser Micromachining

https://www.youtube.com/watch?v=wE6pD72eRts

[00:00] So um we'll see some interesting features about how to perform micro machining on large 3D pieces and we will learn also from the expertise of our speakers about optimum parameters to get the desired result.
[00:12] We will have time for questions at the end of each presentation so I encourage you to raise your hands uh so you can solve the doubts directly with the speakers and we can have a rich discussion.
[00:24] We are also live streaming on YouTube in case you can uh you want to follow me in that platform and let me first say a few words about epic in case some of you doesn't know us.
[00:35] Epic is the European Photonics Industry Consortium.
[00:37] We are the world leading leader industry association in the field of photonics.
[00:43] And now we are 800 members you can see an impressive number.
[00:47] The goal of epic is to support the development and the competitiveness of the photonics industry and its members.
[00:54] And I'm showing in this slide the great epic team which allows us to be active in very different areas.
[01:00] all our activities are related with connecting people with idea of generate new collaborations to create new business opportunities and also to learn about new markets and applications.
[01:11] so we organize technical meetings online and in person.
[01:15] we also provide market analysis and reports.
[01:19] we help to find the right investor for each company or help also big companies to invest in the markets of interest and we also support human resources activities with the jobs in photonic website.
[01:32] as an example of future activities you can see a list of our next meetings both online and in person.
[01:39] i want to highlight some of them like in september 26 september an otm of photonics for aesthetics and cosmetics.
[01:44] also october 17th the photon is for the mobility of the future with a lot of laser applications here also related with batteries mainly laser welding.
[01:58] i would also like to highlight the epic
[02:00] edge watch on laser and photonics applications at complement for those of you.
[02:04] Those are interested in in the medical market.
[02:07] that will be celebrated in dusseldorf during the medical company exhibition.
[02:12] uh and for example in january 2023 we have an otm on laser-based manufacturing for implants and also do not forget that we have the world photonics technology submitting in san francisco.
[02:23] but please check our website because we have more events there with all the information.
[02:28] you can see the agenda and all the topics that will be really well explained in there.
[02:35] for today we have six very great sponsors um we will start with uh asphericon.
[02:40] we have sebastian uh perhaps you can say a few words about your company.
[02:46] yes of course antonio thanks for having me so as fair con company based in yenar germany.
[02:53] roughly 200 people are around we are a manufacturer of aspheric and free-form lenses and also systems such as beam shapers beam expanders there for a
[03:02] variety of applications such as laser material processing laser welding laser cutting stuff like that.
[03:09] thank you sebastian.
[03:11] our next sponsor is laser point we also have the nile.
[03:16] we will see some of your work later but perhaps you can say a few words about your company now.
[03:22] yes sure thanks antonio.
[03:25] laser point is an italian company we are manufacturing laser power and energy meters.
[03:32] we have a wide portfolio of more than 100 different kind of sensors.
[03:36] and we have actually also dedicated line which we call blink high speed which is specifically dedicated to measuring fast laser that i think can be of interest for this micro machine.
[03:48] thanks.
[03:50] thank you very much danielle um i haven't seen anybody from workshop of photonics.
[03:57] this is a company dedicated to find the most effective android second laser micro machining solution.
[04:03] for the different tasks the user can have and also to help with the process of the end user.
[04:09] our next sponsor is luxinar we also have joanna in the room.
[04:14] you can perhaps say a few words you wanna thank you.
[04:17] thank you antonio uh yes looks in our designs and manufactures sealed co2 laser systems um up to a thousand watts.
[04:26] along with a new range of femtosecond laser sources called the lxr series.
[04:33] these feature pulse on demand and burst mode among other things.
[04:37] and our lasers are used in lots of industries including automotive electronics packaging and textiles and for many different processes such as cutting ablation drilling.
[04:55] also you we lost your audio we lost your audio for a while joanna.
[05:02] no problem.
[05:04] but i think that the message is is clear.
[05:05] so thank you for the introduction.
[05:07] um our next sponsor is acceptors i saw music over there.
[05:14] perhaps you can say also a few words about your company.
[05:18] thank you antonio yes acceptors is the leading manufacturer of micro optics including micro lenses and also micro lens arrays and deflective optical elements so our micro optics is famous for telecommunication transceivers but also our microphone deflector optical elements beam shapers can help in laser machining society so i'm here today for that and i want to hear your needle microptics or beam shaping components thank you.
[05:51] music and our last sponsor is thank you music and our last sponsor is dmc um dmc is a company making software for laser machining system control i saw taurus in the room uh perhaps you can say a few
[06:04] words taught us.
[06:07] Yes, thank you, Antonio. Uh, yeah, DMC, we're a Lithuania-based company. Um, we, our, our solution is used to control, uh, laser system machines, um, for any kind of application from laser micro machining to 3D printing.
[06:22] It's used by OEMs, end users, R&D institutes.
[06:27] Um, and, and yeah, and we're one of the biggest for laser system control software, uh, providers.
[06:36] Thank you.
[06:38] Thank you very much. So, uh, in this slide, you also have, uh, my contact at the contact of my colleague, Antonio Raspa, who is helping me with the moderation today.
[06:45] Any questions, uh, do you have in mind or do perhaps realize before the after the meeting, uh, you can just contact us, or if you have anything to discuss, feel free to contact us. We will be really happy to, happy to help.
[06:57] So, Antonio, uh, I think you are going to tell us a little bit about the audience we have today and all the
[07:05] supply chains related with micro machining.
[07:09] Yes sure.
[07:10] uh it's really a an interesting restart after the summer break here.
[07:14] I'm really impressed because uh in this slide we have all the people attending uh the meeting of today.
[07:25] and what is really catching my attention is the end user box.
[07:31] where we see how relevant ha micro machining for so many different industries.
[07:39] We are going from healthcare to semiconductor from high performance material to lining and luxury goods and jewelry without forgetting oil and gas glass-based manufacturing and so on.
[07:54] this really is starting an interesting revolution in the laser material processing.
[08:02] so uh i i just
[08:06] I would like to remind that if somebody has not his logo in this slide, it's just because this slide is showing the people that are in the room today.
[08:19] Clearly, uh, there are many other uh potential users and the company involved in the supply chain.
[08:24] This could be really uh to invite them to join our future meter meetings.
[08:31] And then uh, let's start with the speakers.
[08:34] Uh, we have a very interesting panel.
[08:37] Can you go to the next slide, Antonio?
[08:41] Yeah, I'm sorry.
[08:42] I'm probably seen right now because I don't remember all the names.
[08:51] Let me try to share again.
[08:58] Okay.
[09:01] While Antonio is looking for the slide of the panel, I would like just to remind
[09:07] a free important uh initiative from the european commission.
[09:14] the first one is photonab that is a digital hub in a digital innovation hub that is supporting all the photonics application with a special target to the not uh photonics end users and this is really a great opportunity to expand our technologies outside the standard limits.
[09:38] then there are other two interesting initiatives one is lampass.
[09:44] lamppas is a project that is oriented to laser manufacturing of large surfaces and structural blood surfaces.
[09:57] and the second interesting initiative is pulsate that is promoting laser-based advanced and additive manufacturing technologies in a
[10:07] industry sector okay.
[10:11] let's uh go to the panel of today today.
[10:14] we have andreas gabba from corning incorporated.
[10:19] then we will have a team kunse from fujo bionic.
[10:23] reiner klinger from alphanog.
[10:26] darius zvirad from fluence and last but not least francisco gontatte from imen.
[10:33] so i will go straight to andreas.
[10:36] so let's start talking later.
[10:39] andreas the floor is your.
[10:41] good morning.
[10:43] good morning good afternoon and good evening all around the world.
[10:47] so let's start sharing the content.
[10:52] okay can you see my screen now.
[10:59] yeah we see the screen and there's okay.
[11:01] great.
[11:01] so yeah thank you first of all um for thanks for the opportunity to present what corning is doing with lasers and
[11:09] with lasers and glass.
[11:11] And um I'm currently located at the Corning Research Facility in Corning, New York, US.
[11:17] So you see the site in the background here.
[11:20] So we are here, a group of some thousand scientists and researchers working on processes and development that can lead into future products, mainly based on glass ceramics and things Corning is doing.
[11:38] I personally um I'm working on on the laser processing side here at Southern Park.
[11:42] And I did um work the past five years was calling laser processing in Germany.
[11:48] So that's um also why this talk is also focusing on glass cutting.
[11:54] Mainly, first I like to give a quick introduction into Corning and why Corning is working with lasers and laser manufacturing and laser processing.
[12:04] Um, maybe you know Corning is a quite old, long-standing US company.
[12:10] focusing on glass and current materials.
[12:15] we do have currently.
[12:17] more than roughly 60 000 employees.
[12:19] worldwide so we increase that number on that slide.
[12:23] continuously and we are trying to develop products and processes that help to transform industries and also calling people's life.
[12:35] so one of the most famous products corning provides is probably the the gorilla glass you know all from these smartphones um.
[12:45] but the product portfolio goes well beyond that.
[12:49] mainly based on glass products and glass ceramics.
[12:53] and why is corning also working with glass um.
[12:55] this is mainly biased because the corning is interested in in a lot of industry shaping innovations.
[13:02] so from its beginning corning tried to really uh find new products that um.
[13:10] can be used all for interesting applications starting with light bulbs for for railroad signal lenses but also spreading through kitchenware and other technologies that might not sound like high-tech but the products and the manufacturing processes were always new and innovative and as you see here on this track record in 2013 it's given that cornstain focuses also on laser processing of glass mainly to support the development of the glass cutting process that has evolved during that time with the emergence of the short pulse picosecond lasers and since that time corning has a site that focuses on glass cutting is providing tools and solutions for that but also uses it internally for manufacturing and production um corning is very strong.
[14:12] very proud of innovation and for sure
[14:14] also direct intellectual property
[14:17] uh so that's what's also driving um
[14:21] that site here in southern part where we
[14:23] do
[14:23] uh try to innovate and bring new
[14:26] solutions um
[14:27] to to products and to this um
[14:31] intellectual property also belongs the
[14:33] so-called basel beam technology for
[14:35] glass cutting you might have heard of
[14:37] that
[14:38] which is a way to
[14:40] very specifically focus
[14:42] the short post laser into
[14:45] surface into the glass bulk material in
[14:50] order to enable later on separations
[14:55] in case you you like to understand more
[14:57] details of this
[14:59] you're welcome to reach out to clt or to
[15:01] me
[15:02] to to explain some details on that
[15:05] so this is a site
[15:07] where corning focuses on
[15:10] manufacturing for the semiconductor
[15:11] industry
[15:12] but also two sites where the laser
[15:14] processing is pushed forward as discussed.
[15:17] this is on the one hand side.
[15:19] this grinding site close to munich in germany.
[15:23] uh so-called corning laser technologies.
[15:25] and they do provide full automated laser processing solutions.
[15:30] for glass cutting but also for glass processing.
[15:33] and the other side is where i'm currently located the sullen park look site.
[15:39] in corning new york that is a small nice town upstate new york close to rochester.
[15:47] where we do apply this technology for internal investigations.
[15:52] so what can we do with this technology.
[15:54] uh why why do we think this is a great technology.
[15:57] so first of all one key process we can realize with that and with the tools.
[16:02] corning can provide is we can cut large thin glass sheets which is also one of the key core competency of corning.
[16:11] i don't know if you heard that but corning can manufacture.
[16:15] um.
[16:16] gen 10.
[16:17] large glass sheets which is a 5x4 meter light large glass sheets with a thickness of below a millimeter.
[16:26] uh so with a very high aspect ratio um of that material and this we can directly laser cut into shape with this based on this technology.
[16:35] another application on a very different scale is uh really more in the area of micro machining where we can cut free form shapes directly from finished processed glass wafers.
[16:48] one application here is uh for example the augmented reality where you can cut then ratings and waveguides from imprinted or post-processed glass wafers to enable the augmented reality industry.
[17:04] another application for that which is also initiated and established at clt is that we can directly cut the 3d form glasses.
[17:15] so not only flat sheet of glasses but also if you have hot formed or bent glass shapes that need to be trimmed into exact shapes for your product you can then directly cut these 3d formed glasses without any any movement of the part or any robotic assistance
[17:40] one other technology that had been emerged during the research and the application development at corning is that we were able to increase also the quality of the cutting so the blue dots you see here this is a typical performance for add strength
[17:57] so if you if you have a laser cut edge and you bend that at some point this glass will break and you can measure the stress that is required uh or that is the limiting factor until this break occurs
[18:10] and uh with um enhancement of this laser technology we
[18:15] are able to shift this edge performance
[18:18] of glasses really
[18:20] by a factor of 2 to 120 megapascalin
[18:23] four point bending so when you have
[18:25] heard from other publications of people
[18:27] that glass is weak and after cutting
[18:30] glass
[18:31] always breaks and you do need
[18:32] post-processing uh with modern um
[18:35] development in this field we are really
[18:38] able uh to to
[18:41] bring this cut cutting performance to
[18:43] the next level
[18:46] so last but not least uh here's one
[18:49] detail of of a laser cut edge so this is
[18:52] a 0.76 glass side wall
[18:56] and
[18:57] we can control the laser beam in a way
[19:00] that we only not only modify the full
[19:02] glass thickness of the
[19:04] substrate to enable separation but we
[19:06] are also able to control the depth of
[19:09] modification inside the glass
[19:11] in a way that we can leave
[19:14] [Music]
[19:17] and facets on the glass side that are clear so that then can enable in coupling and outcoming light uh for example here as shown for iron exchange five waveguides on the surface of the glass wafer but this can also be used for example for other glass waveguides in in the glass and can enable future applications for telecommunication applications
[19:43] and last but not least i have one more example which is very very new and very interesting besides cutting these thin sheet materials from corning this technology with the new powerful laser systems that are available today we also are able to make a single pass cutting of really thick glass materials given in this example here up to seven millimeter and this can be realized even for free form shapes as given here um as
[20:17] round shapes or
[20:18] around the carbon rectangles
[20:21] and this is true not only for soda lime
[20:23] but also for different glass materials
[20:26] and can be applied um
[20:28] yeah for
[20:29] many different kinds of applications
[20:32] and one detail i also would like to
[20:34] focus because this is a new offering
[20:36] that corning has established in the last
[20:38] year
[20:39] and which also will be promoted in the
[20:41] glasstech conference
[20:43] um in two weeks time in dusseldorf
[20:46] um this is that we also um can now uh
[20:50] process really small parts from a wafer
[20:52] based so if you do have a wafer process
[20:54] on glass where you do have a surface
[20:56] structuring and you need to simulate uh
[20:59] dyes at the end from this wafer
[21:02] you can use the laser process to modify
[21:05] the glass but given that you have very
[21:07] small dyes typically in many of these
[21:10] applications you need also then a way to
[21:12] separate that
[21:13] and
[21:14] we are able to now provide the full
[21:16] solution from lasering and breaking
[21:18] um
[21:20] these dyes into into singular dyes
[21:23] um for for for example flow cell
[21:26] applications but also optical
[21:27] applications where you would like to
[21:29] have filters or
[21:31] cover cover parts for mems devices
[21:35] and here on the top right
[21:37] top right hand side you do see a video
[21:39] that is you can find on youtube where
[21:42] you see some nice um
[21:45] yeah some nice sketches of this process
[21:47] this is all i wanted to show today um if
[21:50] you have any questions on glass cutting
[21:52] or laser processing for glass
[21:54] um please reach out to corning laser
[21:56] technologies in germany or also our
[21:59] corning site or me directly personally
[22:03] and if there are any questions yeah
[22:04] please go ahead i'm looking forward for
[22:06] interesting discussions
[22:09] thank you very much andreas really nice
[22:12] what is uh corning referencing glass
[22:14] material doing nowadays in terms of
[22:16] laser macro machining
[22:17] so it's time for four questions
[22:20] as i mentioned i will appreciate if you
[22:22] can raise your hands and ask your
[22:24] question directly to andreas
[22:30] i i have a question
[22:34] thank you very much andres it was very
[22:35] fantastic talk and i have a question
[22:38] regarding the seven millimeter glass
[22:41] cutting so what is the speed you can
[22:43] obtain
[22:45] so
[22:46] uh given you have the right laser source
[22:48] in your system um
[22:52] yeah given you have the right laser
[22:54] source in the system you can do that
[22:55] with a single pass cutting
[22:57] and given that the picosecond lasers do
[22:59] have a very high repetition rate you're
[23:02] typically not limited by the um laser
[23:06] performance you're then typically
[23:07] limited more by the dynamics of the axis
[23:10] so i'm i'm think i would not pretend
[23:12] that you can go with one meter per
[23:14] second uh on any given structure you
[23:17] have but but you are in the realm of uh
[23:21] hundreds of millimeters per second for
[23:23] sure for this process
[23:26] if given the single pass approach
[23:28] and the right system selection
[23:32] thank you very impressive
[23:34] yeah thank you yeah another question
[23:36] from ali from cms lisa
[23:40] hey how are you
[23:42] um i have a quick question please
[23:46] uh
[23:46] when you do the process for the glass
[23:49] cut would you prefer to use a scan head
[23:51] or you use a house
[23:54] with some air pressure or something like
[23:56] that
[23:58] so the process for glass cutting is not
[24:00] based on a scan head application but
[24:02] it's processed on a fixed optics
[24:04] application so you do have
[24:06] uh to translate the laser beam um
[24:10] with the fixed optics
[24:12] but given um typically tool building
[24:14] capabilities this can be done very
[24:16] quickly did that answer your question or
[24:19] did i misunderstood that
[24:21] yeah yeah
[24:23] yeah right so so this process uh we are
[24:25] utilizing is not an ablative process so
[24:28] typically when you do think of cutting
[24:30] of glass you
[24:31] probably would go with an ablation
[24:33] with a green laser source or so but this
[24:36] is very slow so so our process is really
[24:38] based on a single poles single pass
[24:41] laser cutting at high speed so you can
[24:44] achieve these one meter per second
[24:46] processing
[24:47] speeds on straight lines on large sheets
[24:50] yeah because i'm doing
[24:52] a
[24:52] several projects in glass cutting with
[24:55] different types of lasers between
[24:58] pico uv to ir
[25:01] thank you so much
[25:03] yeah so one big advantage as you just
[25:05] mentioned that is that we do not create
[25:07] debris with our process so if you have
[25:09] an uv ablation process you always create
[25:12] some some ablation you all your side
[25:14] walls are never straight
[25:16] and and uh you probably also get quite
[25:19] some heat affected zone in ins on on the
[25:21] surfaces or inside the material um
[25:25] given the the corning technology
[25:28] we use picoseconds lasers which are um
[25:32] quite cool for processing these
[25:34] materials so we don't have too much heat
[25:36] affected zone
[25:37] and the process is clean so we don't
[25:39] create debris or dust particles
[25:43] thank you
[25:45] welcome
[25:46] and another question my colleague
[25:48] antonio please antonio
[25:50] yes thank you so much andreas for the
[25:52] great presentation
[25:54] i saw that you gave example from
[25:58] very large to
[26:00] quite small devices so i figure out that
[26:04] also the laser
[26:06] you are using different laser and
[26:07] different processes
[26:10] right
[26:11] something and also maybe if you can't
[26:13] tell us
[26:14] what is still missing so i think that
[26:17] you have in your hands a lot of laser
[26:19] but
[26:20] it's enough or there is still something
[26:22] that you need them
[26:24] so this is a great question thank you
[26:26] for that so um the high power lasers are
[26:29] for sure very important for the thick
[26:30] glass cutting and there is um still need
[26:35] to really integrate and have these
[26:37] available
[26:38] at a at a good cost point because these
[26:42] are not yet too too widely spread
[26:44] and um if you do not have the laser
[26:47] power you need you do need to have
[26:49] multi-pass cutting or you do need to
[26:51] live with a very narrow process window
[26:54] so
[26:55] powerful lasers with a very good beam
[26:57] quality and a tunable
[27:00] pulse
[27:02] duration of pulse duration but post
[27:04] profiles these are required to really
[27:07] optimize these processes
[27:09] to uh
[27:10] to a good good matter um on the other
[27:13] side what what is really required is to
[27:17] optimize the component selection and the
[27:20] integration of the part to the
[27:23] customer expectations so so what we do
[27:26] typically need is to understand the
[27:28] customer requirements in a very great
[27:30] detail
[27:32] because what sometimes happens is that
[27:34] the customer
[27:36] has a problem on a glass part and he um
[27:39] is used to classical manufacturing like
[27:41] score and break cutting grinding and all
[27:44] these things and typically you can't
[27:46] directly laser process these parts
[27:48] because of blocking features because of
[27:51] other structures that are there so it's
[27:54] really important to discuss at an early
[27:57] stage with the end customer what enables
[27:59] and disables laser cutting and then we
[28:01] are able to also
[28:03] establish a process that is stable
[28:06] and meets the customer requirements
[28:09] good good so i can summarize that
[28:12] you are really
[28:14] following or mentoring the customer on a
[28:17] laser application because
[28:20] always
[28:22] right so if you approach uh calling
[28:23] laser technologies they will not provide
[28:25] you with a solution and you can go with
[28:27] that and and just build up the tool you
[28:30] will need to discuss in greater detail
[28:31] how the tool will will be set up and
[28:33] designed and we will define the process
[28:36] so that it matches to your application
[28:39] so so this is this is what we typically
[28:41] do
[28:42] good thank you thank you so much
[28:46] thank you andreas and thank you antonio
[28:48] we also know uh know a little bit more
[28:50] about the needs of courtney for the
[28:52] future so it's great to have this
[28:54] information
[28:56] um so i don't see any other question in
[28:58] the in the room so thank you again
[29:00] andreas for the representation as uh in
[29:03] this time now for uh team team ponzi
[29:06] from fusion bionic uh we are going to
[29:08] learn a little bit more about
[29:10] surface structures
[29:12] and the ip process so team the floor is
[29:15] yours
[29:22] so hello i hope you can hear me can you
[29:23] see me can you see my screen
[29:27] yeah we see now the presentation on and
[29:29] we hear you thank you okay perfect so uh
[29:31] first of all uh congratulations epic for
[29:33] having 800 or more than 800 members
[29:36] that's that's a great progress um and
[29:40] hello everybody so my name is tim tim
[29:42] concert
[29:43] ceo of fusion bionic
[29:45] we are a spinoff from uh fraunhofer
[29:47] gazette from aws in christian germany
[29:50] focusing on laser surface finishing
[29:53] through an
[29:54] advanced laser technology called direct
[29:56] laser interference patterning and i
[29:58] would like to uh bring to your attention
[30:00] today a little bit the world of
[30:01] bio-inspired class surfaces so it
[30:03] follows the talk of andreas um using
[30:06] laser laser service finishing
[30:08] um
[30:09] first of all of course it's what
[30:11] bioinspired bioinspiration means
[30:13] biomatics is the synonym for that so
[30:16] first of all of course you can take some
[30:17] inspiration from natural services like
[30:19] the lotus leaf effect or a sleeve and
[30:21] the move eye and then look at the
[30:24] smaller scale and then
[30:26] observe some nice textures and features
[30:28] and then
[30:29] transfer that to technical surfaces so
[30:31] this is let's say the short version of
[30:33] what we do so
[30:34] from nature to innovation so we are
[30:36] aiming at transferring natural effects
[30:38] to technical surfaces on on different
[30:41] levels and different for different kinds
[30:42] of applications
[30:44] and how this
[30:45] looks like in
[30:47] in yeah reality so to say oh just to
[30:49] give you some examples as shown here so
[30:51] this is an example of the loot sleeve
[30:54] surface which consists of different
[30:56] kinds of structures different kinds of
[30:57] let's say chemical uh let's say
[30:59] compositions which you don't see of
[31:01] course but the idea is of course to
[31:03] mimic that to produce that artificially
[31:06] by by lasers like shown here
[31:09] so this is an example of our approach
[31:12] of course it looks
[31:14] more how to say
[31:16] more ordered in the sense which does not
[31:17] necessarily mean it's it's better in the
[31:19] end but this is one of our core approach
[31:22] let's say to to transfer these kinds of
[31:23] effects from nature to technical
[31:25] services we therefore provide um a
[31:28] certain kind of
[31:30] solutions uh technical solutions which
[31:32] are capable of doing that
[31:34] in this case it's a demonstration of our
[31:36] core modules so one of our products
[31:39] and the technology behind that is
[31:41] based on interference principles meaning
[31:43] that we use
[31:45] directly interference patterning which
[31:47] we developed over uh
[31:49] many years at the throne of iws and as a
[31:52] spin-off from the fraunhofer we now
[31:53] bring this to the market
[31:55] and basically what
[31:56] is different from established
[31:58] technologies is that you work with
[31:59] interference principles meaning that you
[32:02] from
[32:03] let's say originating from a laser
[32:05] source you take the laser beam and then
[32:08] control this the kind of
[32:10] number of laser beams and also the way
[32:12] how the laser beams are overlapping
[32:14] and this can generate some surface
[32:16] features on the
[32:17] on the on the product in the material
[32:19] so actually we overlapped laser beams
[32:22] which result in interference pattern
[32:24] fabrication
[32:26] and this in the end can be used um
[32:28] to treat materials so actually what we
[32:30] have in the beam is some sort of of a
[32:32] structured beam which is then imprinted
[32:35] on the material
[32:36] um
[32:37] what we now do at fusion is to
[32:40] realize technical implementations
[32:42] meaning that we have different kinds of
[32:44] products
[32:45] which are based on interference
[32:46] principles based on the interference
[32:48] technology and
[32:49] then provide this to the market
[32:52] basically this kind of of technology can
[32:54] be used on all kinds of materials
[32:57] at very high process speeds because you
[32:58] usually are not uh how to say it's not
[33:00] mandatory that you need to actually you
[33:02] don't need to work in the focus which
[33:05] makes it highly scalable especially if
[33:07] you have more power available from the
[33:09] laser sources itself
[33:12] recently for instance we demonstrated
[33:14] end of last year that you can reach a
[33:15] processing speed as high as
[33:17] three square meter per minute which
[33:19] makes it very interesting for various
[33:21] applications
[33:22] i today want to focus as said a little
[33:24] bit on the class material uh application
[33:26] so for instance for consumer electronics
[33:29] and here photovoltaics in the first
[33:31] first place
[33:32] um with consumer for instance uh there's
[33:35] a lot of challenges especially when it
[33:37] comes to optical properties
[33:39] um
[33:39] and the second for photovoltaics for
[33:41] instance contamination is very important
[33:43] it's something which occurs and which
[33:44] needs to be controlled on the long on
[33:46] the long run
[33:47] um
[33:48] just to give an example this is for
[33:50] instance an anti-clear functionality
[33:52] realized with with a laser actually and
[33:55] one need to know actually the anti-clear
[33:57] is basically the way how a reflection is
[33:59] controlled uh on the surface itself so
[34:01] it's some sort of scattering process
[34:04] which is is of course different than a
[34:06] real anti-reflection uh let's see
[34:08] functionality like shown for uh before
[34:10] from the mood eye and what uh we uh can
[34:13] do actually is uh we can provide the
[34:16] same approach and an alternative to
[34:18] chemical etching so this chemical
[34:20] etching is for instance a process which
[34:21] is very common
[34:23] uh it's i think more than 250 years use
[34:26] in in this kind of for laser for glass
[34:28] processing and you can reach comparable
[34:31] results
[34:32] on using lasers which of course makes it
[34:34] very interesting from a sustainability
[34:36] point of view
[34:37] um and of course you can be much more
[34:39] flexible and can let's see of course on
[34:41] the long long term uh also be
[34:44] competitive even for large areas
[34:46] um a second example when it comes to
[34:49] the second field so photovoltaics is
[34:52] anti-soiling it's some sort of um
[34:55] i would say newer functionalities
[34:57] meaning
[34:58] so soiling in general is a challenge for
[35:00] photovoltaics because um
[35:03] you can imagine that the the
[35:04] photovoltaic panels which are out there
[35:06] in in all kinds of environments are
[35:09] usually um pruned to different kinds of
[35:11] soiling phenomena like mineral dust
[35:13] droppings algae and so on and
[35:16] this is not a small
[35:18] small problem is of course it can
[35:20] scale up very quickly so in the range of
[35:23] seven up to seven percent of seven
[35:25] percent of solar power production is
[35:27] lost due to this kind of contamination
[35:30] which can easily assume up in in the
[35:32] billions
[35:33] um and of course usually
[35:36] you address that by cleaning which
[35:38] consumes a lot of water and dissolving
[35:40] coatings it's a different way but there
[35:41] are different kinds of solutions out
[35:43] there and we from fusion bionic are
[35:45] offering a different kind of approach
[35:47] obviously by laser texturing aiming at
[35:49] large area treatments to actually
[35:52] address also
[35:54] the adhesion of particles in the end and
[35:56] providing
[35:57] more self-cleaning or better
[35:58] self-cleaning mechanism
[36:01] if you go for other kinds of examples
[36:04] like aesthetics
[36:06] and
[36:06] for instance also central applications
[36:08] then of course laser processing can also
[36:11] provide some alternative and some
[36:12] solution here
[36:13] um obviously for aesthetics if you want
[36:16] to go for colored class then usually you
[36:18] use additives
[36:19] which can be a problem but of course not
[36:21] in all areas
[36:23] and for sensors the problem is different
[36:25] it's it's with fogging for instance so
[36:27] you know that for instance for from
[36:29] goggles if you come
[36:30] in from from outside when it's cold and
[36:32] then you have this this effect
[36:34] which is definitely annoying
[36:36] um decoration of course can be addressed
[36:38] by
[36:39] uh surface structuring also
[36:41] of course which introduces some
[36:43] diffraction uh
[36:44] some diffraction effects with some sort
[36:46] of
[36:48] let's say
[36:49] color effect which is depending on the
[36:50] angle of view but it can introduce some
[36:52] aesthetic aesthetical nature and some
[36:54] interesting um decoration effects which
[36:57] are for instance relevant for the
[36:59] consumer and beauty industry
[37:01] um and the second example which i've
[37:03] brought you with which i brought you
[37:06] with me um is is anti-fogging
[37:08] functionality which is for instance
[37:10] usually done by
[37:11] um polymeric coatings for instant
[37:13] instance so a coating approach and we
[37:15] can also provide an alternative here
[37:17] obviously also much more flexible than a
[37:19] coating so you can really work with
[37:21] logos and stuff like that
[37:23] and actually what
[37:24] we are aiming at is really to find new
[37:27] and provide new ways to substitute
[37:29] established processes like uh mentioned
[37:32] coatings chemical etching and so on
[37:35] um in the spirit of the epic of course i
[37:37] would like to uh
[37:39] highlight uh two things so what we can
[37:41] do for you and what you can do fast so
[37:43] left hand side so what you can what we
[37:45] can do for you is of course that we are
[37:46] see us as a solution provider making uh
[37:49] new functionalities or advanced advanced
[37:51] functionalities available uh like shown
[37:54] but of course there are others um and i
[37:56] just
[37:57] showed today more the class uh field but
[38:00] of course there are much more materials
[38:02] which where we have experience so it's
[38:03] not limited to class
[38:05] uh in this spirit we uh for instance
[38:07] provide customization of services
[38:09] meaning that we can help you in
[38:11] advancing your products but also in the
[38:12] same place let's say provide the
[38:14] manufacturing solutions to achieve that
[38:16] and bring this to your production team
[38:19] on the other side of course what you can
[38:20] do for us is that we are constantly
[38:23] looking for customers interested in
[38:24] alternatives to establish solutions as
[38:26] mentioned
[38:27] before and this of course can involve
[38:31] also some joint activities joint
[38:33] projects in for instance working
[38:35] together on surface functionalities at
[38:37] transform
[38:39] or of course at upscaling or on
[38:40] upscaling scenarios which means that of
[38:42] course at a certain place
[38:45] to really
[38:46] um
[38:47] upscale for instance directly writing
[38:49] processes when it comes to high
[38:51] resolution features
[38:53] and with that i would like to
[38:56] end my presentation
[38:58] and i would like also to highlight that
[39:00] we are also participating as employers
[39:02] and scoring at the class tech um and
[39:04] would be happy if possible to meet you
[39:06] there
[39:07] thanks
[39:10] thank you very much team very nice
[39:12] overview of your capabilities
[39:15] so
[39:16] again it's the time for questions
[39:21] so arnaz from fenticam thank you
[39:24] yes hello tim nice presentation thank
[39:27] you very much
[39:28] um
[39:29] i was wondering about the lifetime and
[39:32] the durability of the surfaces
[39:35] because yeah yes could you comment on
[39:37] that sure i think maybe i should put
[39:39] that in the future because it's a
[39:42] all-time question um
[39:44] of course relevant question important
[39:46] question um it's depending of course on
[39:48] the functionality on the area the
[39:51] the the functions are applied just to
[39:53] give an example this anti-fucking uh
[39:55] surface which i've shown you is is more
[39:57] than one year old uh also cleaned
[40:00] continuously though um it is
[40:02] um of course if you if you take a
[40:04] sandpaper and then wrap on it then of
[40:07] course i mean
[40:08] there if a functionality is there or not
[40:10] it would definitely destroy the surface
[40:12] but it depends on on many things and of
[40:14] course we'll need to talk about details
[40:16] here
[40:18] got it thank you
[40:21] thank you ernest and andreas
[40:26] yes hi interesting talk thank you so
[40:28] much i just have a question on on the
[40:30] surface uh features you are creating so
[40:33] as far as i see these are always a
[40:35] regular features over a larger area
[40:38] right can you also create randomized
[40:39] structures over a surface
[40:42] um the question you are raising is not
[40:45] surprising andrea is a very good
[40:46] question yes so basically um
[40:49] you're fully right so interference
[40:51] technology is is a periodic technology
[40:53] normally but
[40:55] there are ways let's say to to overcome
[40:57] that uh if a functionality like maybe
[41:01] some the visual reflection or a declare
[41:03] is demanding that
[41:10] great thank you
[41:12] thanks so thank you thank you thank you
[41:14] tim
[41:15] another question from team
[41:20] so i have a question regarding one
[41:21] comment uh in your last slide or almost
[41:24] the last slide it's about the upscaling
[41:27] scenarios uh because you have a
[41:28] technology with that laser with bin
[41:31] delivery solutions movement system and
[41:33] so on do you think all the those
[41:35] components are prepared for going to
[41:37] production in terms of um anti-fog in
[41:40] solution for example in a big
[41:41] reproduction or are you missing
[41:43] something from the technology point of
[41:44] view or something that should be
[41:45] improved uh in all those those parts
[41:49] yeah um are you referring to the the
[41:52] function itself or to the components
[41:54] which are used to the effect of
[41:55] solutions to the components okay
[41:57] also good question um of course we
[42:01] are always using um let's say
[42:04] suppliers which have commercial
[42:05] commercial solutions so we avoid uh
[42:08] fully let's say the use of experimental
[42:10] solutions and so on but of course we are
[42:13] also open to that the short answer is we
[42:15] use commercially available
[42:18] we choose commercially available
[42:20] solutions optics and so on uh to be then
[42:23] coupled into our uh products and
[42:25] solutions as well
[42:27] mm-hmm
[42:28] does it answer
[42:29] yeah yeah okay
[42:32] i have another question from kai labs
[42:34] when
[42:35] from the regular garden bean shaping
[42:38] hi
[42:39] i don't know if i should put my camera
[42:41] on maybe
[42:42] hi tim very nice talk i was just
[42:44] wondering i think you didn't say it
[42:46] maybe i missed it but uh how many bees i
[42:48] mean what the range of the number of
[42:50] beams you are making a interference with
[42:53] i guess minimum probably is two
[42:56] maybe not maybe it's three i don't know
[42:58] and and no it's maybe it's open finisher
[43:00] i don't know that's a good question then
[43:01] normally i think what is very
[43:03] established so to say so if one can say
[43:06] that uh for a young technology like this
[43:08] two to four beams let's say of course
[43:10] you can go also up two to six beams
[43:12] um usually
[43:14] there's no big difference in in going
[43:16] higher than four beams but of course
[43:18] some applications might require that uh
[43:20] and let's see from the from the um
[43:23] solution point of view of course there's
[43:24] uh we have certain products which are a
[43:27] standard uh so to say so standard
[43:29] product portfolio which goes are
[43:31] operating between two and four beams
[43:33] um but higher beams
[43:35] could be also interesting uh uh as well
[43:38] for if you want for instance want to
[43:40] control polarization or things like that
[43:43] okay thank you
[43:49] so there is no more questions for team i
[43:53] want to thank again for a nice
[43:55] presentation thank you and i would like
[43:57] to introduce our native speaker it's a
[43:59] reiner clinton for alpha nov
[44:01] we continue with uh surface structures
[44:04] uh so let's see what alphanov is going
[44:07] to offer us today
[44:12] yeah
[44:13] thank you antonio
[44:15] thank you
[44:16] all for
[44:19] being here
[44:20] and for giving me the opportunity to
[44:22] give us a small pitch here
[44:24] on elephant of activities do you see my
[44:26] screen
[44:29] okay
[44:30] good that will
[44:32] um my name is ryan cling at
[44:34] alphanov we are here in bordeaux and
[44:37] today i will build up on what tim
[44:39] already said
[44:40] having a
[44:42] laser texturing
[44:43] for functional surfaces
[44:45] on industrial applications
[44:48] and um
[44:54] just a few words about alphanov
[44:56] we have been
[44:58] created in the year 2007 as a
[45:00] non-for-profit organization
[45:03] we have grown to 105 full-time employees
[45:06] by now
[45:07] and our mission is to bring photonics
[45:10] innovation
[45:13] with laser processes into industry
[45:16] so
[45:17] we have pretty much the same range of
[45:19] activities of what uh tim already talked
[45:22] about
[45:23] we are trying to address
[45:25] um
[45:26] [Music]
[45:27] surface functionalization by texturing
[45:30] of surfaces and in particular
[45:33] addressing the nanometer scale
[45:36] so the the chasm is really to have the
[45:39] nanometer precision but at a speed of
[45:41] square meters per minute
[45:43] and here is an example of antibacterial
[45:46] surfaces where it has been shown that
[45:49] an antibacterial surface has to have a
[45:52] texture of
[45:54] periodicity around the size of the
[45:56] bacteria so below the one micron scale
[46:00] 200
[46:01] to 500 nanometers is perfect for
[46:03] stressing bacteria and so the surface
[46:06] can be antibacterial
[46:09] our solution is to apply
[46:11] high average power femtosecond lasers
[46:14] but with the right system technology to
[46:16] address the the square meter scale
[46:19] to have an initial
[46:21] mirror polished surface textured with
[46:24] the necessary function on the surface
[46:27] and in this example here it's a mode for
[46:30] a dishwasher where we wanted to have
[46:34] the antibacterial surface on on the
[46:36] plastic component on
[46:38] molded onto plastical parts for water
[46:40] tank
[46:42] what do we need for that well first of
[46:44] all a very powerful
[46:47] femtosecond laser here we have a tanker
[46:49] of 300 more than 300 watts of average
[46:52] power from amplitude
[46:54] and that laser source we inject into a
[46:58] polygon wheel
[47:00] the scanner with the line of 350
[47:03] millimeters of length
[47:05] and with the right coil speed we address
[47:07] exactly this range of square meters per
[47:11] minute on stainless steel coils on a
[47:15] rotorole
[47:17] coil
[47:18] on the rotor rolling machine but right
[47:20] now
[47:22] we have two different machines we can do
[47:24] the batch processing for
[47:26] rigid
[47:27] and
[47:28] large parts but we also have
[47:32] for continuous processing the road to
[47:34] rule machine which you can see here and
[47:36] i would like to share with you a short
[47:38] video on the next slide
[47:41] which gives you an impression of the
[47:43] real speed of the the texturing of
[47:46] of the metal sheets
[47:48] in a continuous process
[47:50] and the real challenge is the
[47:53] synchronization of the axis of the
[47:55] scanner with the laser
[47:57] in the megahertz range
[47:59] but if everything works correctly then
[48:02] you manage to make test runs on coils of
[48:05] 50 meter length that you can see here on
[48:08] the bottom
[48:09] of my screen
[48:12] and
[48:13] you can
[48:15] add the function on
[48:17] large coils exactly that you want so
[48:21] we have built
[48:22] this machine within the framework of the
[48:25] project which is called new skin so
[48:28] imagine that like a swimsuit you put the
[48:31] new skin on whatever component you have
[48:34] but not only on 2d components the
[48:37] mission really is to bring it on
[48:39] industrial surfaces for
[48:41] steel construction for water treatment
[48:44] and
[48:45] we already had the question
[48:46] if you transform your material
[48:49] afterwards does it withstand any forming
[48:51] any post-processing
[48:54] process well
[48:56] we believe it does
[48:58] but we need to look into each
[49:00] application
[49:02] separately but what we can provide to
[49:05] the different materials is the different
[49:08] surface topographies and the physical
[49:10] function
[49:11] that tim already addressed it can be
[49:14] super hydrophobic super hydrophilic
[49:16] it can be anti-biofouling it can be for
[49:19] medical applications antibacterial it
[49:22] can be self-cleaning or
[49:24] for photonics components it can be
[49:26] anti-reflective
[49:28] and each uh function needs a different
[49:31] topography and for that um we have now
[49:35] ready the the machine then that can
[49:37] provide this functionality
[49:40] so that's the value proposition within
[49:43] the new skin project we have open calls
[49:45] so if you have an industrial application
[49:48] for such a
[49:50] function
[49:51] you can address
[49:53] to
[49:54] us
[49:54] to the project and inject your
[49:56] application and we can test whether we
[49:58] manage to bring the function on your
[50:01] specific component
[50:03] but
[50:06] the missing link
[50:08] for the industrialization
[50:10] is really the quality control of
[50:12] nanometer scale surfaces in mass
[50:14] production so what you really want to
[50:16] have
[50:17] is a
[50:18] in-line measurement tool that you can
[50:20] integrate into your machine
[50:22] and within the process within the same
[50:24] machine you already have a feedback
[50:26] whether your nanostructures are
[50:29] implemented into your sample or not
[50:33] and this is a big gap
[50:35] most
[50:36] quality controls of nanometer scales are
[50:39] made offline
[50:41] and
[50:42] you have to use microscopes but
[50:44] nanometer structures you cannot see in
[50:46] microscopes so you use an afm or
[50:49] sem
[50:50] but this is no inline tool so what we
[50:54] suggest
[50:55] is the scatterometry as a tool for
[50:57] inline process control
[51:00] and i don't have the time to go into
[51:01] details how it works
[51:03] but basically you
[51:05] look into
[51:06] the angular distribution of the
[51:08] scattered light and you can conclude
[51:11] from that
[51:13] which textures you implemented into your
[51:15] surface and we measured with afn
[51:19] control whether it works or not and you
[51:22] can see here a good correlation
[51:24] if you know that you're texturing lip
[51:26] structures for instance into your metal
[51:28] sheet you correlate that with a model
[51:30] and then it you see the height of the
[51:34] structures that you implemented
[51:36] so the take home message is basically
[51:40] that
[51:41] high average power femtosecond lasers
[51:43] are a
[51:45] valuable tool for high speed processing
[51:48] in the square meter range square meter
[51:50] per minute range
[51:51] of nano texturing of whatever material
[51:54] you want to texture
[51:56] scatterometry is
[51:58] a tool a very promising tool for
[52:01] measuring the nanoscale structures that
[52:03] you cannot measure optically
[52:05] easily within
[52:06] the machine
[52:08] and the next step is now to bring these
[52:10] functions on your real parts on
[52:13] industrial parts on 3d parts
[52:15] and i don't have time here but this will
[52:18] be a subject of two different speeches
[52:21] you can transform your sheet metal by
[52:24] forming
[52:25] and
[52:27] we have promising results that they
[52:29] survive the forming process or by
[52:32] replication of molding where it takes
[52:34] through directly the mold and then
[52:36] transform it to
[52:37] thermoplastical components and
[52:41] the
[52:42] reproduction of these structures even on
[52:44] the nanoscale
[52:45] is quite promising
[52:48] so with that i would like to thank you
[52:50] for for your attention and here is a
[52:53] short overview of the different
[52:55] structures that can be realized with a
[52:57] direct laser
[52:59] nano patterning
[53:01] thank you
[53:09] so thank you very much reiner really
[53:11] interesting
[53:13] also talking about the quality control
[53:15] proposal
[53:16] any question
[53:18] yeah antonio please
[53:20] yes thank you so much rhino very
[53:23] interesting and uh
[53:25] dance presentation i have a lot of
[53:28] questions so i think
[53:30] i take only two but i took a lot of
[53:32] notes all right
[53:34] one is about the laser so you are using
[53:37] now a 350 watts laser
[53:40] let's imagine to have more power
[53:43] it's a
[53:45] it it does have an impact on the process
[53:48] or we should expect now to deal maybe to
[53:51] some limitation especially on the heat
[53:53] that we are putting on the parts
[53:56] and this is one question and then maybe
[53:58] later i would like to listen something
[54:00] more about the anti-reflecting uh
[54:02] treatment
[54:03] all right
[54:04] uh so
[54:06] the question is
[54:07] um the the answer to the first question
[54:10] is uh luckily
[54:12] with the high speed scanners
[54:15] we are able to scale up even more the
[54:18] the scanning speed and we can see in the
[54:20] market now that polygon wheels go into
[54:22] the kilometer per second range
[54:24] which helps you to dis distribute the
[54:26] heat over a large surface area
[54:29] and with that with the coil speed we are
[54:32] not quite limited we can have larger
[54:34] spots but that will reduce the
[54:35] resolution of course
[54:37] but in principle we are able to
[54:39] distribute even kilowatt
[54:41] so three times the power that we are
[54:43] using actually
[54:44] um over the surface without any
[54:47] detrimental effects of heat effect we
[54:49] believe it works the good question is on
[54:53] the synchronization
[54:55] we use the approach of low low energy
[54:58] high repetition rates
[55:00] and with the high repetition rates that
[55:02] we are currently using
[55:05] we can scale it up even further
[55:09] so
[55:10] with the kilowatt range we don't see the
[55:12] limitation if we scale up the repetition
[55:14] rate then the good question is for the
[55:17] synchronization going into the megahertz
[55:19] range and this here we see
[55:21] limitations in electronics which are not
[55:23] well developed and the the scanner
[55:27] laser communication
[55:29] to be synchronized with the handling
[55:31] system this is a real challenge and
[55:34] i'm happy that we have dmc here in the
[55:36] audience they
[55:38] listen to our needs and the system
[55:41] technology in this range is really
[55:44] something that
[55:45] needs a lot of attention to go ho
[55:48] towards higher average power
[55:51] good good okay
[55:53] very interestingly
[55:55] so antonio i keep this your second
[55:57] question for a little bit later um
[56:03] yeah we heard about surface
[56:05] metrology and measurements so i i i see
[56:08] so far carlos is rising the hand so
[56:10] please call us
[56:13] afternoon
[56:15] so uh yes as i saw that quality control
[56:17] was somehow a limitation i
[56:19] i thought that uh it maybe it was worth
[56:22] to ask
[56:23] why
[56:24] so i saw that in your laboratory you
[56:26] have a leica dcm 3d which by the way is
[56:29] a system designed and manufactured by
[56:31] sensofar many many years ago
[56:33] use of the quality control by other
[56:36] means and i was wondering uh what are
[56:38] the limitations of an optical surface 3d
[56:41] profiler
[56:43] i know that rotorual
[56:45] applications are always challenging
[56:46] mostly for image techniques
[56:49] what's happening there what
[56:51] do you think
[56:52] you would need to solve that
[56:56] well
[56:57] um
[56:58] i would judge the trl of such a
[57:01] technology quite low because um
[57:04] in the lab it works but in the machine
[57:07] in the real-time process you are dealing
[57:09] with vibrations you're dealing with uh
[57:12] influence of different light levels
[57:14] and that really going out of the depths
[57:17] of focus of your coil in the the point
[57:20] of focus
[57:21] um it needs some more robust
[57:24] technologies to make the scatterometry a
[57:27] mature tool
[57:29] for
[57:29] real production but at least from the
[57:33] specs it has the the promise it has the
[57:35] performance to deal with
[57:39] kilohertz
[57:40] acquisition rates
[57:42] of
[57:43] information that you can have a full 100
[57:46] quality control of your surface and
[57:47] that's why we believe that
[57:49] scatterometry is a promising tool
[57:53] thank you
[57:56] carlos i have another question
[57:58] thank you carlos i have another question
[57:58] from tim
[57:59] [Music]
[58:00] uh yeah
[58:01] i know awesome stuff what you're doing
[58:04] at the funnel um
[58:05] [Music]
[58:06] what do you think what is necessary to
[58:09] actually
[58:10] i know that for instance the laser power
[58:11] usually on the industrial scale is
[58:13] normally limited to 200 watts if it
[58:15] comes to usp i mean amplitude is i think
[58:17] a little bit far away possibly what do
[58:20] you think is necessary to drive that
[58:22] further to have more power
[58:24] maybe to let's say really see these kind
[58:26] of
[58:27] how to say functionalities in the market
[58:30] at a certain point
[58:32] i believe we are coming to the hand and
[58:35] egg problem
[58:36] if at one day somebody says that we need
[58:42] a productivity of 100 meters per square
[58:45] a day
[58:46] in serious production
[58:48] then everyone will be
[58:50] ready to construct a machine
[58:53] select the good laser source and
[58:56] select the good
[58:57] optical and electronic components
[59:00] to address this need
[59:02] but for now um
[59:04] we are more in a technology push
[59:06] situation where we are making a promise
[59:09] we have this open test bed where we
[59:13] validate for industrial needs
[59:15] uh the different performances on air
[59:18] wing structures on different
[59:19] applications but is this always of big
[59:22] groups the research department where
[59:24] they need to present internally the
[59:27] results and then go push internally in
[59:30] inside the company the application into
[59:32] the production and this is a long um
[59:36] acquisition uh time
[59:38] for them to
[59:40] realize
[59:41] these structures because they go need to
[59:43] go all the trl up to nine validate that
[59:47] there is no detrimental effects
[59:49] micro
[59:53] cracks in the in the surface or whatever
[59:56] the quality control
[59:58] inside big companies can be quite quite
[01:00:01] time consuming and this is where we are
[01:00:03] right now people are interested but not
[01:00:05] ready to go into production
[01:00:08] okay cool
[01:00:09] push let's push harder
[01:00:12] thanks we can do that together tim yeah
[01:00:17] yeah sure sure of course
[01:00:20] okay so we have a potential effort
[01:00:23] together in the for the future
[01:00:24] uh we have a final question from darius
[01:00:28] uh hi thank you very much rainer it's
[01:00:30] very interesting uh your talk and it
[01:00:34] gave me also
[01:00:36] some stuff to think
[01:00:38] uh
[01:00:39] what you did and well what tim also
[01:00:42] shown like got me thinking like are you
[01:00:45] using just gaussian beam for this
[01:00:48] polygon scanning or
[01:00:50] or you can have some additional
[01:00:53] benefit from beam shaping and beam
[01:00:56] patterning
[01:00:59] um
[01:01:00] for now
[01:01:01] um we are coming from the lip structures
[01:01:05] there the the gaussian beam is uh
[01:01:08] perfectly fine for the d-lib i believe
[01:01:11] that
[01:01:12] top head profiles would even have a more
[01:01:15] regular structure if it's needed
[01:01:18] but
[01:01:19] for now they are not used very much
[01:01:21] because
[01:01:22] each optical component
[01:01:24] has a loss of average power and we are
[01:01:26] trying to bring the most average power
[01:01:28] on the surface possible so we try to
[01:01:30] minimize optical components but on
[01:01:34] separate applications i can believe that
[01:01:36] top head profiles perfectly suited to
[01:01:39] the needs of industry customers
[01:01:42] okay thank you
[01:01:46] so thank you very much rainer really
[01:01:48] nice presentation antonio yeah sorry
[01:01:52] it's correct to say that probably a
[01:01:54] challenge now is also on the components
[01:01:57] or on the optics level when we are
[01:01:59] speaking about
[01:02:01] this industrial application we have not
[01:02:02] to forget
[01:02:06] lenses and the coating of the lenses
[01:02:09] you're perfectly right
[01:02:10] um
[01:02:12] udolph weber from the institute of
[01:02:15] stuttgart gave a presentation at ikaleo
[01:02:18] and i will present this year at alkaleo
[01:02:20] as well
[01:02:21] go further into the forming and whatever
[01:02:24] saying that thermal lensing becomes to
[01:02:27] be a problem in femtosecond laser
[01:02:29] applications when you address the
[01:02:32] kilowatt range and uh this is perfectly
[01:02:35] known it's the average power of the
[01:02:37] lenses
[01:02:38] that can cause some limitations it's not
[01:02:40] the peak power it's the average power
[01:02:42] and yes you're perfectly right we we
[01:02:44] have to look into each optical component
[01:02:46] we're used to
[01:02:48] use femtosecond laser in the
[01:02:51] single digit power range where optic
[01:02:54] components are perfectly fine but now
[01:02:56] the high average power
[01:02:58] we have to
[01:03:01] look into each optical component whether
[01:03:03] it's suited whether it doesn't uh shift
[01:03:06] with time due to thermal effects
[01:03:10] so this is a really a real challenge for
[01:03:12] all the
[01:03:13] supply chain
[01:03:16] to have a stable and available uh
[01:03:18] process at the hand because any small
[01:03:21] drift or during production is
[01:03:24] bringing the results out of control you
[01:03:26] go out of focus and the process is not
[01:03:28] the same anymore you're perfectly right
[01:03:30] yeah
[01:03:31] okay okay
[01:03:33] great
[01:03:34] i don't know if darius would like to
[01:03:36] answer back or is still
[01:03:38] the answer from before
[01:03:41] that you have another question or is oh
[01:03:44] sorry no i didn't lower me sorry
[01:03:46] i'm okay
[01:03:48] okay
[01:03:48] by the way i see that there are if there
[01:03:51] are no other questions or comments
[01:03:55] he is now the time
[01:03:56] for darius
[01:03:58] or from vasa poland to speak about
[01:04:02] their point of view
[01:04:04] so
[01:04:05] the floor is yours darius and
[01:04:08] tell you your needs
[01:04:10] and your
[01:04:15] okay
[01:04:16] thank you very much antonio um
[01:04:19] thank you for having me here
[01:04:21] so today i would like to tell you a
[01:04:24] little bit about fluence and what we do
[01:04:27] in
[01:04:28] our company when it comes to
[01:04:30] micromachining
[01:04:34] just to give you overview of our company
[01:04:36] so we are a manufacturer of femtosecond
[01:04:39] lasers
[01:04:41] and we base our technology on all fiber
[01:04:44] designs
[01:04:45] that are
[01:04:47] designed to
[01:04:50] not degrade over time so for example we
[01:04:52] do not use sieves season or other
[01:04:55] decorable components and we maximize the
[01:04:59] fiber
[01:05:01] the design of our
[01:05:03] old constructions right so for example
[01:05:05] we have this our own oscillator which is
[01:05:09] the heart of every system we built
[01:05:12] and uh based on this
[01:05:15] oscillator that
[01:05:17] like you can see it was tested in many
[01:05:20] difficult environments we built bigger
[01:05:23] amplified lasers so that
[01:05:27] they they are reliable with with a good
[01:05:29] lifetime so we have our headquarter and
[01:05:32] factory in warsaw poland
[01:05:34] but we also have application lab
[01:05:38] in vrozbuff where we test different
[01:05:41] kinds of
[01:05:43] applications like cutting micro drilling
[01:05:46] surface structuring
[01:05:48] for our customers
[01:05:51] so this is part of our portfolio that we
[01:05:54] are offering at the moment so of course
[01:05:57] apart from the oscillator we also offer
[01:06:00] amplified oscillator which is used for
[01:06:04] two photon polymerization for example
[01:06:06] two walls of power and hundreds nano
[01:06:08] joules of energy
[01:06:10] uh we offer
[01:06:12] this uh
[01:06:13] compact jasper flex with 30 watts was
[01:06:17] average apart 30 micro joules and what
[01:06:19] is most interesting for this meeting is
[01:06:22] jasper xo which provides the
[01:06:27] well most powerful solution that we have
[01:06:30] and it is also very versatile because in
[01:06:33] one laser you have femtosecond and
[01:06:34] picosecond pulses
[01:06:36] and here are some examples of what we've
[01:06:39] been doing in our application lab so for
[01:06:42] example
[01:06:43] sapphire
[01:06:44] cutting or glass cutting or
[01:06:48] welding glass to metal and different
[01:06:54] materials
[01:06:57] so
[01:06:58] our approach is
[01:07:01] very similar to what reiner already said
[01:07:05] he likes
[01:07:06] so uh we also having this fantasy lasers
[01:07:10] based on fibers we
[01:07:12] can obtain high repetition rates so up
[01:07:15] to 20 megahertz of repetition rate and
[01:07:19] we
[01:07:20] go up to 100 microtools of average
[01:07:24] energy in one pulse
[01:07:26] so we can operate in this regime where
[01:07:29] we have
[01:07:30] high number of pulses with lower energy
[01:07:35] and
[01:07:36] i just wanted to show you today some
[01:07:38] certain tricks and and and the trends
[01:07:42] that
[01:07:43] can be observed in
[01:07:45] um
[01:07:46] micromachining world so
[01:07:49] when you look at for example ablation
[01:07:51] rates for metals you will see that
[01:07:55] there is something called optimal
[01:07:57] fluence for for the metal
[01:07:59] and the thing is that well this is this
[01:08:02] is the point when a spallation mechanism
[01:08:06] works
[01:08:07] best right so
[01:08:09] so the thing is that
[01:08:11] you don't need a lot of
[01:08:13] energy in the pulse to actually cause
[01:08:17] this pallation and be in the optimal
[01:08:19] fluid so usually for for metals uh you
[01:08:23] need just a couple of micro joules or a
[01:08:27] couple of tens of micro joules to be in
[01:08:30] this uh regime
[01:08:32] so
[01:08:33] when we have a laser that generates
[01:08:36] single pulses right you you have a
[01:08:39] hundred micro joules per one pulse for
[01:08:41] example
[01:08:43] and
[01:08:44] the thing is that
[01:08:46] this pulse energy it is sometimes too
[01:08:49] much
[01:08:51] so uh instead of being at the top of
[01:08:54] this ablation rate curve you are
[01:08:57] somewhere far
[01:08:59] um on this curve so so your ablation
[01:09:01] mechanism is not optimal so we like
[01:09:04] being
[01:09:05] at the optimal level so instead of for
[01:09:07] example using our single pulse this is
[01:09:10] what industry already does
[01:09:12] uh we use burst mode and we we like to
[01:09:15] promote burst mode so that instead of
[01:09:18] having high energy in one pulse you
[01:09:20] split the pulse into
[01:09:23] many pulses
[01:09:26] so a burst of pulses and each pulse in
[01:09:29] the burst would have this optimal
[01:09:33] fluency level
[01:09:34] that causes the maximum ablation rate
[01:09:39] so we
[01:09:40] also
[01:09:41] did our own study and
[01:09:44] we observed that there is also something
[01:09:47] like optimal interval separation
[01:09:50] so this optimal interrupt separation um
[01:09:54] it's uh 15 nanoseconds so this is
[01:09:58] enough time it gives enough time for the
[01:10:02] pulse generated plasma to decay so that
[01:10:06] the consecutive pulse can hit the metal
[01:10:09] or the the surface again and
[01:10:13] ablate the material again
[01:10:17] so there was some study done in the past
[01:10:21] by by this gentleman here and in this
[01:10:24] study
[01:10:26] um it was
[01:10:28] the the that they looked at how what
[01:10:31] what's the ablation rate depending on
[01:10:34] the number of pulses in the burst
[01:10:38] and
[01:10:39] like you can see on this graph
[01:10:42] the intra
[01:10:44] sorry intra
[01:10:46] bars interval it was as slow as like uh
[01:10:51] 20 about 20 nanoseconds
[01:10:54] and
[01:10:55] they noticed that
[01:10:57] for even number of bursts
[01:11:00] the
[01:11:01] this
[01:11:02] ablation rate per per pulse was slower
[01:11:06] and for the odd number of
[01:11:10] pulses in a burst it was higher
[01:11:13] right which indicated that
[01:11:16] for for
[01:11:18] um even number of of births uh this
[01:11:21] every second pulse it causes it's not
[01:11:24] effective because it's shielded by the
[01:11:27] plasma of the previous pulse
[01:11:29] that
[01:11:30] was
[01:11:31] applied
[01:11:32] and for example here here you can see
[01:11:35] our
[01:11:36] results of
[01:11:38] work we did with 50 nanoseconds intra
[01:11:42] burst interval and you can see so this
[01:11:44] is the different
[01:11:46] um ablation rates for different number
[01:11:49] of pulses so you can see that for one
[01:11:52] piles two pulses three pulses and four
[01:11:54] pulses in a in a burst mode this
[01:11:56] level of the ablation rate is
[01:11:59] roughly roughly the same
[01:12:01] which means that
[01:12:03] uh operating in this 15 nanosecond
[01:12:06] interoperability interval we we are in
[01:12:08] the optimal level right so for example
[01:12:11] if you are doing some
[01:12:13] selective layer removal of copper or
[01:12:16] just want to ablate copper very fast
[01:12:19] this can be done most effectively with
[01:12:22] uh
[01:12:22] about 50 nanosecond intra burst interval
[01:12:26] uh so so that ablation rate is the
[01:12:29] highest
[01:12:30] um another example because we are not
[01:12:32] only limited to
[01:12:34] metals it's also
[01:12:36] um polymer cutting this example
[01:12:39] polycarbonate cutting so we demonstrated
[01:12:42] that
[01:12:43] by just using simple appellation and
[01:12:46] gavel scanner
[01:12:47] we were able to obtain cutting speed as
[01:12:50] high as
[01:12:51] half a meter per second for
[01:12:55] this film
[01:12:57] cutting right so this gives good
[01:13:01] good results for industrial
[01:13:04] customers if you want to cut
[01:13:07] very fast uh with uh
[01:13:10] the well set up simple enough
[01:13:12] uh and well this is some alternative to
[01:13:15] using like
[01:13:17] different methods like beam shaping etc
[01:13:20] so if you have any questions
[01:13:22] please
[01:13:24] ask me
[01:13:25] thank you
[01:13:26] thank you so much dario this is really
[01:13:28] an interesting
[01:13:31] point of view and really pointing uh
[01:13:34] some
[01:13:35] critical aspect of the process
[01:13:38] i just look
[01:13:40] there is nobody yet making a question so
[01:13:42] i make a question
[01:13:44] and this is also coming back to your
[01:13:46] question your coverage of uh
[01:13:48] half an hour ago about
[01:13:50] the beam shape
[01:13:52] because uh here we are also
[01:13:54] dealing with the separation between uh
[01:13:57] passes
[01:13:58] also we have to deal with the
[01:14:00] beam profile when you have at m00 in the
[01:14:04] central part you have twice the energy
[01:14:08] on the waist
[01:14:09] so somehow you are working well above
[01:14:12] the right
[01:14:13] value in the center so
[01:14:15] so of course uh using top hats is always
[01:14:19] uh helpful so uh
[01:14:22] this is something we are certainly going
[01:14:24] to to use
[01:14:26] well in the future um
[01:14:29] but
[01:14:30] well
[01:14:31] what i wanted my message that i wanted
[01:14:33] to convey is that sometimes
[01:14:36] going to high energy
[01:14:39] it's not beneficial but instead of going
[01:14:42] to like the the highest possible
[01:14:44] energies it's better to have more pulses
[01:14:46] per second and it's uh better to use
[01:14:50] yeah spatial and but also temporal pulse
[01:14:53] shaping so top hat uh shaping yes this
[01:14:56] is very much uh helpful vessel beam
[01:14:59] shaping is very much helpful
[01:15:01] um and using bursts yeah this is this is
[01:15:05] the future
[01:15:06] yeah sure here we are need to manage uh
[01:15:09] the fluence
[01:15:11] on the part and you are really
[01:15:13] driving the fluence as the name of your
[01:15:16] company by the way i see eric from
[01:15:18] amplitude
[01:15:20] so eric
[01:15:21] switch on the camera and make the
[01:15:22] question yourself
[01:15:24] you can you can hear me yes sir we don't
[01:15:27] see you but we can hear you
[01:15:29] okay
[01:15:33] perhaps my camera is not he's not
[01:15:34] working so i have a question uh
[01:15:37] concerning the the polycarbonate you
[01:15:39] have
[01:15:40] shown that the results
[01:15:43] what is the the efficiency or the or the
[01:15:46] specific ablation rate that
[01:15:48] optimal you can you can
[01:15:50] reach
[01:15:52] okay
[01:15:53] um
[01:15:55] so
[01:15:56] um
[01:15:58] i mean okay so uh
[01:16:00] maybe i i cannot tell the ablation rate
[01:16:03] from the top of my head but usually so
[01:16:06] that the thickness of the material
[01:16:09] it was in this case about 50 or 60
[01:16:14] micrometers and
[01:16:17] the well that the beam diameter was
[01:16:21] uh about
[01:16:23] um
[01:16:25] well
[01:16:26] uh 50 50 micron between 30 and 50 micro
[01:16:30] right so the ablation rate is something
[01:16:32] we we haven't
[01:16:34] uh measured
[01:16:37] but
[01:16:39] well i can tell you that the optimal
[01:16:41] pulse duration was 250 femtoseconds
[01:16:46] which was much better than 500 20
[01:16:49] seconds which we also tested
[01:16:54] okay
[01:16:55] and a second question perhaps if
[01:16:57] possible
[01:16:58] for the results we have you have shown
[01:17:00] um
[01:17:02] concerning the
[01:17:03] the optimum
[01:17:05] point for for vibration with birth uh
[01:17:08] you seem to to to say that uh the the
[01:17:11] physical mechanism is pallation at this
[01:17:14] point okay
[01:17:17] uh uh
[01:17:19] you have unexperimental evidence for
[01:17:20] that or it's from a theoretical
[01:17:23] hypothesis from from firstner
[01:17:27] so
[01:17:28] this is
[01:17:29] based on
[01:17:30] the theory right of the how the plasma
[01:17:33] is creating created and how
[01:17:37] what's the lifetime of the plasma so uh
[01:17:40] well we can analyze the the results of
[01:17:44] well
[01:17:46] data that's available
[01:17:49] around and
[01:17:51] well this is our our conclusion that we
[01:17:54] had hypothesis
[01:17:56] okay
[01:17:57] thank you
[01:17:59] thank you
[01:18:00] and then we have also
[01:18:02] simone
[01:18:03] from mks instruments
[01:18:05] please thank you yeah thank antonio
[01:18:07] hello darius i have just one short
[01:18:09] question those
[01:18:10] experiments with more pulses with the
[01:18:12] optimal fluence have you been doing only
[01:18:14] with
[01:18:15] 1030 nanometers or also in the other
[01:18:18] wavelength ranges
[01:18:21] again your question is if
[01:18:24] if we used only 10 13 nanometers uh for
[01:18:27] this uh in the intestines yes so uh yes
[01:18:30] we did
[01:18:31] uh we did use uh 1030 we also tried
[01:18:35] using other wavelengths like second
[01:18:36] harmonic for harmonic uh but still
[01:18:41] the best
[01:18:42] efficiency we obtained at 10 30. okay
[01:18:46] thank you
[01:18:50] okay
[01:18:52] so
[01:18:53] i i have another question or another i
[01:18:57] i have a point here we're speaking so
[01:19:00] much about the energy so i think it's
[01:19:03] very important to know exactly how
[01:19:06] stable is the laser so here and this
[01:19:10] summer just before summer i visited a
[01:19:13] laser point where i learned about the
[01:19:16] their latest product the latest power
[01:19:18] meter so uh
[01:19:20] here i see andrea anderson daniele
[01:19:23] who would like to tell us a little more
[01:19:25] about because they have a very
[01:19:28] special power meter an energy meter
[01:19:31] energy meter
[01:19:33] okay yes
[01:19:36] i can say a few words maybe i can also
[01:19:39] share my screen
[01:19:40] perfect
[01:19:41] okay
[01:19:44] can you see it
[01:19:46] okay
[01:19:48] yes at the laser point laser point as i
[01:19:50] was mentioning before we are a
[01:19:52] manufacturer of laser power and energy
[01:19:54] meter and we have actually developed a
[01:19:57] very specific product dedicated to ultra
[01:20:00] fast laser which is
[01:20:03] very important was in today's topic for
[01:20:05] micro machining applications and we have
[01:20:09] actually a patent on this specific
[01:20:11] product we call it blink high speed
[01:20:14] it is still based on a thermal design so
[01:20:18] it has the advantage that it is
[01:20:20] broadband we can measure from
[01:20:22] ultraviolet up to
[01:20:25] infrared even co2 laser actually this is
[01:20:28] the only sensor energy sensor which is
[01:20:30] capable of measuring co2 past laser up
[01:20:34] to repetition rates of uh one megahertz
[01:20:38] at the moment
[01:20:39] and up to an average for a power at the
[01:20:42] moment we can just go up to 50 watts but
[01:20:45] we are planning to go higher in the
[01:20:48] future as average power of course
[01:20:51] it is as i mentioned specifically useful
[01:20:54] when you want to measure and check the
[01:20:56] stability paths by pulse of your laser
[01:20:59] for example this is an acquisition of a
[01:21:02] picosecond laser 500 kilohertz
[01:21:05] picoseconds
[01:21:06] and
[01:21:07] actually the
[01:21:08] sensor itself is even faster we have
[01:21:11] been hearing about the burst mode
[01:21:14] operation of the laser
[01:21:16] just to show here just very preliminary
[01:21:18] acquisition of bars
[01:21:21] with the let's say intravast repetition
[01:21:23] rate of 40 megahertz this is a four
[01:21:26] pulses and this is a 15 bus passes 200
[01:21:30] fecal seconds so for all your
[01:21:32] application where you need to really
[01:21:35] have a tight control of your energy
[01:21:39] emission pass bypass there are specific
[01:21:42] applications where
[01:21:43] the efficiency of the process is
[01:21:46] actually critical you need to
[01:21:48] check in each individual path
[01:21:50] we do have this kind of sensor which is
[01:21:53] really unique we believe on the market
[01:21:58] thanks
[01:22:00] good good very interesting and
[01:22:03] i think that
[01:22:05] this could be really an important
[01:22:08] piece of the puzzle of the micro
[01:22:10] machining
[01:22:12] processes to know exactly what is
[01:22:14] happening and uh if i'm not wrong
[01:22:16] daniello daniele is also possible to
[01:22:19] understand if for any reason is missed
[01:22:22] one passes in advance correct we are
[01:22:24] developing some let's say additional
[01:22:26] feature related to
[01:22:28] of course using this
[01:22:31] sensor
[01:22:32] actually we are uh yes developing
[01:22:35] features where we are checking missing
[01:22:37] passes or passes which are either
[01:22:40] above or below a certain pressure
[01:22:43] so that the instrument can give you a
[01:22:46] feedback an immediate feedback if for
[01:22:48] example there is a pass which is
[01:22:50] not between a certain band that of
[01:22:54] course the operator can set
[01:22:56] and this we believe is going to help
[01:22:58] especially on quality check quality
[01:23:01] control in reducing the time in quality
[01:23:03] check because you can detect
[01:23:06] and
[01:23:06] [Music]
[01:23:08] find exactly when an event of a missing
[01:23:11] pass or a pass
[01:23:14] outside the specification that you set
[01:23:16] is happen
[01:23:18] and check the specific let's say part
[01:23:21] that is being worked with that specific
[01:23:23] pulse
[01:23:26] okay very good very good
[01:23:28] so uh i don't see any special
[01:23:33] comments or questions i i just have a
[01:23:36] comment for nelly it's uh regarding your
[01:23:38] meter it's uh your idea that the user
[01:23:41] can also measure in the in the focal
[01:23:43] point or close to the focal point or
[01:23:46] it's a tool that you want to integrate
[01:23:47] with the
[01:23:48] laser head
[01:23:50] like
[01:23:50] like a control uh
[01:23:52] of the performance of the laser
[01:23:55] actually no we we think that our sensor
[01:23:59] can measure also the direct beam i'm not
[01:24:02] totally sure under percent confident on
[01:24:04] the focal point because of course there
[01:24:07] is a demonstration also for this
[01:24:10] for this sensor but it is pretty high as
[01:24:13] i mentioned we can measure
[01:24:15] average power up to 50 watts
[01:24:18] so it is possible to measure direct beam
[01:24:21] uh
[01:24:22] directly the big and of course you can
[01:24:24] also use
[01:24:25] to measure
[01:24:27] for example just a part using a pin
[01:24:29] splitter for example if you want to do
[01:24:31] some
[01:24:31] [Music]
[01:24:32] feedback mechanism inside your
[01:24:36] micro machining application and you want
[01:24:38] to check
[01:24:39] in real time
[01:24:41] the energy of each individual
[01:24:45] very great
[01:24:47] we have another question from
[01:24:51] thank you
[01:24:52] thank you for a nice presentation uh i
[01:24:55] would like to ask about the principle of
[01:24:56] the measurement
[01:24:58] system
[01:24:59] because it measures broadband on
[01:25:01] different wavelengths and very fast
[01:25:04] yes actually yes
[01:25:07] as i was mentioning this is still based
[01:25:10] on a thermal design so i would say that
[01:25:13] the the the thermal let's say
[01:25:16] traditional sensor uh physics still
[01:25:19] holds here and as you know thermal
[01:25:23] sensor are propelled they can measure
[01:25:25] basically any kind of lesser wavelength
[01:25:28] but however they are slow typically slow
[01:25:31] they respond in the range of seconds or
[01:25:33] more
[01:25:34] actually what we are doing here it is
[01:25:37] not we are not measuring the heat
[01:25:39] transfer on let's say in the radial
[01:25:43] dimension of the sensor but on the
[01:25:45] thickness
[01:25:46] and we use special ceramic special same
[01:25:49] material very very thin
[01:25:52] so we can make this kind of detectors
[01:25:55] very fast
[01:25:57] i hope i have answered your uh your
[01:25:59] question as i as i was saying we do have
[01:26:01] a patent on this specific design this
[01:26:04] specific products
[01:26:05] yeah yeah thank you very much thanks
[01:26:08] thanks to you
[01:26:11] and we also have a question in the chat
[01:26:13] from ali about the price of this fast
[01:26:15] sensor but yeah i don't know if you want
[01:26:17] to
[01:26:18] tell us right now perhaps it's for a
[01:26:20] further discussion with him in private
[01:26:22] mode i can
[01:26:24] give a rough maybe comment about this
[01:26:27] actually the most expensive part on this
[01:26:30] system is not really the the sensor
[01:26:33] itself
[01:26:34] but it is more often the electronics
[01:26:37] actually for this device we have
[01:26:38] developed uh dedicated electronics which
[01:26:42] is capable it's very fast it's capable
[01:26:44] of sampling up to 500 mega samples per
[01:26:48] seconds
[01:26:49] and just to give you a very very rough
[01:26:52] number for the sensor we are talking in
[01:26:54] the range of 1.5 2k euros
[01:26:58] the electronics is about 5k euros so as
[01:27:02] you can see the electronics is actually
[01:27:04] more than double the cost of the the
[01:27:06] sensor itself
[01:27:08] but actually you could in principle use
[01:27:10] the
[01:27:11] sensor without our electronics
[01:27:14] could it you could plug to a standard
[01:27:16] let's say oscilloscope and work out
[01:27:20] your
[01:27:21] measurement from there of course we do
[01:27:23] provide also a calibration certificate
[01:27:26] with our instrument when used with our
[01:27:30] of course electronics so you receive a
[01:27:32] calibration certificate and thrashable
[01:27:34] to
[01:27:36] mist or ptb with an accuracy of plus
[01:27:39] minus five percent on the energy uh
[01:27:41] measurements
[01:27:43] great daniel thank you
[01:27:45] we cover the
[01:27:46] yeah we answer the question of
[01:27:48] our attention so the next uh speaker
[01:27:51] thank you again daniel
[01:27:52] is uh francisco gontat from uh imeng
[01:27:56] and he's going to tell us about uh zero
[01:27:58] defects micro machining in large 3d
[01:28:00] pieces and he's going to show us some of
[01:28:03] the setups they have in the iben
[01:28:05] research center
[01:28:11] so we see your screen
[01:28:12] okay
[01:28:15] we don't hit you at this moment
[01:28:17] francisco
[01:28:22] sorry i was muted one of the most famous
[01:28:24] phrases last year
[01:28:27] thank you for an invitation for the
[01:28:29] opportunity to uh speak a little bit
[01:28:31] about the things that we are doing i
[01:28:33] mean right now regarding machining in in
[01:28:35] particular i will speak about uh
[01:28:37] textual laser texturing
[01:28:40] just a brief introduction of the uh
[01:28:43] i mean
[01:28:44] we are
[01:28:45] a non-profit retail research association
[01:28:47] located on the northwest of spain uh we
[01:28:50] have several areas of war we are working
[01:28:54] on research and development we also
[01:28:56] provide industrial services
[01:28:58] to companies mainly on the automotive
[01:29:01] and nava sectors
[01:29:03] we have some testing analysis facilities
[01:29:05] that are also open for those
[01:29:08] companies or for other companies in
[01:29:10] other areas we have some training
[01:29:12] courses with uh regarding uh
[01:29:15] testing uh
[01:29:17] analysis regarding uh welding and some
[01:29:19] other manufacturing techniques
[01:29:22] our main
[01:29:24] application areas are the as i said
[01:29:26] before the novel and automotive industry
[01:29:28] but we have close contacts with meta
[01:29:30] mechanic industry with energy and
[01:29:33] biomedicine or textile
[01:29:36] companies
[01:29:37] and quite recently we have
[01:29:38] developed a strong
[01:29:40] link to aerospace companies as we are
[01:29:43] working with them in several european
[01:29:45] projects
[01:29:48] i will speak about the r d that we are
[01:29:50] developing we have four areas of
[01:29:52] expertise
[01:29:54] advanced materials robotics and control
[01:29:56] advanced manufacturing processes which
[01:29:58] is
[01:29:59] mainly based on laser processes and
[01:30:01] environment
[01:30:04] inside the advanced manufacturing
[01:30:06] processes we have divided into high
[01:30:08] power uh processing uh
[01:30:10] applications we call larger macro
[01:30:13] microprocessing
[01:30:14] and lesser microprocessing
[01:30:17] applications which are micro machining
[01:30:20] and as i said they will speak a little
[01:30:22] bit about surface tensioning which is a
[01:30:24] particular case of micromachining where
[01:30:26] you want to applicate a functionality to
[01:30:28] a certain surface it has been mentioned
[01:30:30] in mostly all the talks this
[01:30:33] afternoon
[01:30:34] so i will
[01:30:36] start
[01:30:37] speaking about what we see that is the
[01:30:40] challenge right now in the fabrication
[01:30:42] of 3d pieces
[01:30:44] with lesser technologies
[01:30:46] i mean the fabrication uh of laser
[01:30:49] textures on 3d pieces have several uh
[01:30:52] problems one of them is the throughput
[01:30:53] we need to do it faster we need to do it
[01:30:55] with a high accuracy because the uh
[01:30:58] resolution of the structure that you
[01:31:00] need to fabricate in the
[01:31:01] on the surface is to be very uh very
[01:31:04] small
[01:31:05] so this means that you have to be very
[01:31:08] aware of what you are doing in the
[01:31:10] surface and in order to fabricate a
[01:31:12] large amount of this in large areas with
[01:31:14] zero defects so
[01:31:17] what does it mean it means that you need
[01:31:19] to have a very good precision
[01:31:21] system a positioning system that works
[01:31:23] at large speeds
[01:31:25] you need to have very good
[01:31:27] reliable bing id systems and the ones
[01:31:29] that we have seen we have
[01:31:31] observed before
[01:31:32] the ones that reiner introduced for
[01:31:34] example
[01:31:35] uh online monitoring is something which
[01:31:37] is really important but
[01:31:39] when it comes to
[01:31:40] surface texturing it's really difficult
[01:31:42] to achieve because of the small
[01:31:46] size of the future they want to analyze
[01:31:48] it because of the fast
[01:31:50] speed of the process
[01:31:52] and another thing that is interesting
[01:31:54] for the for improving this
[01:31:57] process so to reach this challenge
[01:31:59] overcome this challenge
[01:32:01] if the optimization of the bcmp that you
[01:32:03] are using to reach the
[01:32:05] substrate surface if you
[01:32:07] modulate your
[01:32:08] wavefront in the with the adequate shape
[01:32:10] you can produce a much faster
[01:32:14] fabrication speed a very nice
[01:32:16] functionality on the surface
[01:32:19] so
[01:32:20] regarding positioning there are several
[01:32:22] alternatives if you want to fabricate
[01:32:24] large pieces you will go to robots the
[01:32:26] only problem with robots is that they
[01:32:28] don't have the the precision uh
[01:32:31] good enough for the fabrication of small
[01:32:32] features on top of the surface so in
[01:32:34] this case you will
[01:32:36] they would like to combine
[01:32:37] uh since
[01:32:39] linear motion access and rotary axis in
[01:32:42] this way you can change the angle which
[01:32:44] that do
[01:32:46] that your laser is reaching
[01:32:48] the target
[01:32:49] uh you need
[01:32:51] for this you need a very good on beam
[01:32:53] gliding systems uh if you are using a
[01:32:55] robot if you are doing rotary axis uh
[01:32:57] you will need probably to use um
[01:33:00] the circadian fibers uh one of the
[01:33:03] problems of the this systems is that
[01:33:05] sometimes they don't keep the polarized
[01:33:07] polarization of the lysis very good so
[01:33:09] do you need to improve the polarization
[01:33:11] of the
[01:33:12] i mean the maintaining of the
[01:33:13] polarization of these systems
[01:33:15] and the other thing as as uh
[01:33:18] reiner's
[01:33:19] shown before
[01:33:20] that the use of fast government metric
[01:33:22] scanners helps you a lot to improve
[01:33:24] their fabrication speed through the
[01:33:25] process
[01:33:26] uh
[01:33:29] beam shaping
[01:33:30] beam shaping you can do it in several
[01:33:32] ways one of them is the way that tim
[01:33:35] shown in his presentation they can do
[01:33:37] interference with interference you can
[01:33:39] tailor the shape of the beam that that
[01:33:42] is reaching the target surface
[01:33:44] or you could do
[01:33:45] deflective approaches one of them is
[01:33:47] static use of defective optical elements
[01:33:50] you can tailor the shape of the light
[01:33:52] static will have a very good
[01:33:54] you can have a very good wave front and
[01:33:56] use it for the texturing station of the
[01:33:59] of the surface
[01:34:00] or you could use a spatial light
[01:34:02] modulator and change
[01:34:04] from time to time when you need it the
[01:34:06] shape that you are
[01:34:08] the way front that you are applying to
[01:34:10] the surface in order to improve the
[01:34:11] process
[01:34:12] from
[01:34:13] one place to another
[01:34:14] one of the the good things that you can
[01:34:17] get of using spatial light modulators is
[01:34:19] that you can get
[01:34:21] get rid of the
[01:34:23] periodicity that are
[01:34:25] inherent that
[01:34:26] techniques like the use of the fractal
[01:34:28] optical elements or
[01:34:30] interference and regarding online
[01:34:33] monitoring as i said it's really
[01:34:35] important but uh at the moment there are
[01:34:38] several techniques that can
[01:34:40] allow you to have some indirect
[01:34:42] measurements like i don't know like
[01:34:44] correlation having a correlation between
[01:34:46] the the beam characteristics the the
[01:34:48] reflection of the beam and um the the
[01:34:51] uh let's say the
[01:34:53] wellness of the process
[01:34:55] some real-time monitoring as uh
[01:34:58] also reiner shown we have something
[01:35:00] similar at the uh they may
[01:35:02] but it's
[01:35:03] it works with certain structures when
[01:35:04] you have some structure that are not
[01:35:06] that
[01:35:07] periodic you have some promising in when
[01:35:10] you want to analyze that structures
[01:35:12] so it's an issue that should be solved
[01:35:15] but
[01:35:18] for
[01:35:18] what we see it's still not so it's
[01:35:20] something that it's working on
[01:35:22] issue
[01:35:24] so regarding the use of
[01:35:27] different motion system we remain
[01:35:29] inside the new screen project we have
[01:35:32] built up um
[01:35:33] five factors uh
[01:35:35] laser processing machine
[01:35:37] which is based in the use of a
[01:35:39] photosecond pass laser
[01:35:40] from amplitude we have a
[01:35:44] laser fiber from photonic tools
[01:35:46] [Music]
[01:35:48] stability uh beam launcher system which
[01:35:50] allows you to to enhance the point
[01:35:52] stability at the entrance of the fiber
[01:35:54] so we have a maximum of the entrance of
[01:35:57] the laser inside the the car the fiber
[01:35:59] so we have a very good
[01:36:01] transmission of the power from the laser
[01:36:03] to the uh to the
[01:36:05] other end of the of the laser fiber
[01:36:07] and at the other end of the laser 5 we
[01:36:09] have installed a laser scanner so in
[01:36:10] this way we can scan
[01:36:12] with different uh with different angles
[01:36:14] the surface of the sample as for example
[01:36:17] you can see here in this this
[01:36:21] game
[01:36:22] this game
[01:36:22] we can
[01:36:23] move the the angle that reaches the
[01:36:26] surface of the substrate by moving the
[01:36:28] rotary um the rotary axis that is placed
[01:36:31] on top of the on the surface of this
[01:36:33] linear set axis
[01:36:35] this allows us to
[01:36:37] work on different 3d shapes with complex
[01:36:39] geometries just by analyzing the
[01:36:42] helmet how the geometry is and by
[01:36:45] planning the movement of the of the
[01:36:46] laser of the three axis and the laser
[01:36:48] opening and shutting to improve the
[01:36:52] final pattern
[01:36:53] uh for example we have uh we have here a
[01:36:56] small picture of something that we have
[01:36:58] uh already printed on a small cylinder
[01:37:01] we have
[01:37:02] been able to print this logo of the new
[01:37:05] skin project and our own logo with this
[01:37:07] setup which
[01:37:09] is something it's a basic at starting
[01:37:11] point but it's something that uh by
[01:37:13] improving the the
[01:37:16] let's say the procedure in the future is
[01:37:17] something we think that we could apply
[01:37:20] on larger surfaces and
[01:37:22] but
[01:37:23] as i said before if you want to go
[01:37:25] larger you will have to go to robots so
[01:37:27] uh the control and the way do you handle
[01:37:30] the rubber
[01:37:32] the rover uh the robot and the
[01:37:34] positioning
[01:37:35] needs to be improved
[01:37:37] uh another thing that we are working on
[01:37:40] right now
[01:37:41] also within the frame of this project
[01:37:43] the um
[01:37:45] the
[01:37:46] news gameplay that
[01:37:57] [Music]
[01:37:58] our initial beam laser into an array of
[01:38:01] um
[01:38:03] of different uh
[01:38:04] say array of different builds
[01:38:07] parallelizing this beam or
[01:38:09] not only
[01:38:10] using an array of light but we can
[01:38:12] tailor the intensity of this array with
[01:38:14] the doe so by
[01:38:16] changing the shape of the wavefront you
[01:38:19] can uh improve the the throughput of the
[01:38:22] process and or produce
[01:38:24] uh structures with a higher
[01:38:26] we are
[01:38:27] a better
[01:38:28] performance this is
[01:38:31] using does which are uh let's say a
[01:38:33] static way of shaping uh champion light
[01:38:36] if you want to do it dynamically you
[01:38:38] want to go to the use of slm's
[01:38:41] slams as you can see in this images
[01:38:43] allow you to
[01:38:45] transfer the image
[01:38:48] that you have on your slm
[01:38:50] into the into the screen i mean you can
[01:38:52] shape your light into the any uh any
[01:38:55] shape that you want to to do and you
[01:38:58] want to use for the fabrication of
[01:38:59] different structures
[01:39:01] uh the nice thing about these lamps is
[01:39:03] that you can use them in two
[01:39:05] configurations you can use direct
[01:39:08] imaging i mean you put an image to the
[01:39:11] to the screen
[01:39:12] and use the reflection and as the
[01:39:15] the base image to
[01:39:17] transfer it into the surface or you can
[01:39:20] use uh you can transfer a face map to
[01:39:22] the screen
[01:39:23] and then use the red optics to produce
[01:39:26] the the same image in the on the samsung
[01:39:28] surface sample surface
[01:39:31] we have several setups that remain uh
[01:39:33] that we are using for this um
[01:39:35] for these processes for them being
[01:39:37] parallel beam processes the two
[01:39:39] processing units
[01:39:42] for the use of the dewis we just need to
[01:39:44] put the do in front of them
[01:39:46] of the object glance and then we can
[01:39:48] transfer the the design of the drain
[01:39:51] directly into the soft tray of the
[01:39:53] surface of the substrate or soft tree or
[01:39:55] sorry this
[01:39:57] surface of the sample that we want to
[01:39:58] texturize
[01:40:00] uh with respect to the slm
[01:40:02] we need to project that light using a
[01:40:04] different kind of optics 4f in order to
[01:40:06] project the face map into the
[01:40:10] into through the
[01:40:13] objective lens on the subject surface
[01:40:16] we have used this to
[01:40:18] do some
[01:40:20] tests on glass and we have been able to
[01:40:21] fabricate some uh gradients on on glass
[01:40:24] with
[01:40:25] by changing the shape of the
[01:40:27] of the beam that we were using with the
[01:40:29] salon
[01:40:30] uh
[01:40:31] okay summarizing i mean
[01:40:34] this is not so only it's
[01:40:36] probably most uh
[01:40:38] presentation that raises questions and
[01:40:40] asks for help in some areas that solve
[01:40:43] some questions
[01:40:45] uh we have seen that for the
[01:40:47] we
[01:40:48] i mean for the tax creation depreciation
[01:40:50] of large areas you will need to go to
[01:40:52] robots but it's something that's uh i
[01:40:54] think a work on progress in fact
[01:40:56] uh in the following months there will be
[01:40:58] a starting project uh
[01:41:00] working on this kind of uh
[01:41:02] of work actually trying to improve the
[01:41:05] control and the how the robots and
[01:41:07] interact with the lasers and with the
[01:41:10] positioners in order to improve the the
[01:41:14] the
[01:41:15] let's say the precision the positioning
[01:41:17] and so the precision on the texturing of
[01:41:19] the of the equipment
[01:41:21] uh
[01:41:22] online monitor is something that this
[01:41:25] needs a lot of work there we need to
[01:41:28] look for alternatives probably with some
[01:41:30] correlation of
[01:41:32] techniques uh direct measurements uh use
[01:41:35] of artificial intelligence
[01:41:38] and uh
[01:41:39] optimizing the beam guidance and beam
[01:41:41] shaping it's going to something that's
[01:41:43] going to be uh
[01:41:46] seeing on the on the future of machines
[01:41:49] this is how we see it at least
[01:41:53] thank you for your time i hope i have
[01:41:56] been clear otherwise have been i'm here
[01:41:58] for four questions
[01:42:01] thank you very much francisco for
[01:42:03] showing us the projects and also the
[01:42:06] challenges you have for the future
[01:42:09] it's time time for questions
[01:42:16] i i have a question myself regarding the
[01:42:18] use of the slms because it's a component
[01:42:21] i normally see related with lower power
[01:42:24] lasers
[01:42:25] how do you see the performance and the
[01:42:28] durability of these elements
[01:42:30] actually in the last year there has been
[01:42:32] a lot of developments uh
[01:42:34] from hamamatsu from halloween to to use
[01:42:37] this kind of
[01:42:38] machines with higher powers they are now
[01:42:42] cooled by water
[01:42:45] they can withstand the higher powers
[01:42:47] probably not the the highest power that
[01:42:52] that some application required but some
[01:42:54] for some application where you don't
[01:42:55] have a very hard material you could use
[01:42:57] this kind of
[01:42:58] setups at least for now they they came
[01:43:00] with some really high power
[01:43:03] sure tools lasers
[01:43:06] thank you
[01:43:10] and uh as i don't see any any other
[01:43:13] question i yeah please uh and we have a
[01:43:15] question from dmc
[01:43:18] hi francesco yeah thanks for the
[01:43:20] presentation it was good to see the five
[01:43:22] access system pictures as well uh i
[01:43:25] wanted to ask
[01:43:26] what kind of 3d shapes are you using are
[01:43:29] you uh marking using that system what
[01:43:32] kind of uh unifor non-uniform shapes
[01:43:35] high processing for now we are using the
[01:43:37] the system to mark on uh
[01:43:41] cylinders or molds uh for example for
[01:43:43] molds for the
[01:43:45] fabrication of
[01:43:47] of orange
[01:43:49] so for uh since i have a toroid uh
[01:43:51] toroidal uh symmetry
[01:43:53] uh something like that
[01:43:55] at least for the moment that that were
[01:43:57] the requirements from some companies
[01:43:59] that
[01:44:00] led us to the the use of this machine
[01:44:03] understood thank you
[01:44:07] thank you
[01:44:08] yeah that is please
[01:44:11] hi uh thank you very much for this
[01:44:13] presentation i was wondering uh what is
[01:44:15] your favorite wavelength and uh because
[01:44:18] i saw well
[01:44:20] some of green some i guess uh
[01:44:23] is green the most
[01:44:25] uh common that you use
[01:44:27] uh
[01:44:28] well it depends actually the application
[01:44:30] on the material we for for mike martino
[01:44:33] we mostly work go with uh
[01:44:37] with ir with uh
[01:44:39] 130 nanometers but we have several
[01:44:42] applications with 515 nanometers
[01:44:46] because we were also working on two
[01:44:47] photon polymerization and that's the
[01:44:49] wavelength we use
[01:44:50] for for that and we started being
[01:44:53] using bim shaping
[01:44:54] for that application and then when we
[01:44:56] see that this uh
[01:44:59] beam shaping uh materials and machines
[01:45:02] could withstand uh higher power later we
[01:45:05] try to use them for for that application
[01:45:09] okay thank you and my follow-up question
[01:45:11] like do you see
[01:45:12] any trends for the future going lower
[01:45:15] wavelengths
[01:45:18] well
[01:45:19] that's uh
[01:45:21] that's a very good question
[01:45:22] [Music]
[01:45:25] regarding the slims
[01:45:28] i mean because when you go deeper
[01:45:31] you have higher absorption so it's uh
[01:45:34] it's complex to to manage the the energy
[01:45:38] in the that area so i don't know
[01:45:40] probably probably if
[01:45:43] if the materials keep evolving probably
[01:45:45] they will be useful but right now it's i
[01:45:48] think
[01:45:49] i have seen that they they have built
[01:45:51] something for 343 i mean fair harmonic
[01:45:54] of the
[01:45:55] of uh
[01:45:57] urban fiber lesser but not uh
[01:46:00] i mean not for higher power
[01:46:02] i have seen high power for just for
[01:46:04] infrared maybe green
[01:46:06] okay thank you
[01:46:11] so thank you again francisco and uh well
[01:46:13] to to finish the session as we have been
[01:46:16] talking a lot about v shaping we have a
[01:46:18] final slide
[01:46:19] uh from massvericon
[01:46:21] uh that is going to tell us a little bit
[01:46:23] more about their solutions for that so
[01:46:25] sebastian
[01:46:28] yeah antonio thank you
[01:46:31] all right yeah so it's going to be just
[01:46:33] a quick one um
[01:46:40] if it lets me
[01:46:42] just a second you can see my screen
[01:46:44] right yeah
[01:46:45] okay perfect
[01:46:47] yeah so um
[01:46:49] as uh stated in the beginning so as
[01:46:51] fairy con company um we saw now a
[01:46:54] duplicate service was very duplicated so
[01:46:56] perhaps uh you need to change the time
[01:46:58] of the slide or going back and reset
[01:47:00] without presentation mode
[01:47:03] i think that's that's better that's
[01:47:05] better yeah let's do it like this
[01:47:08] [Music]
[01:47:10] okay
[01:47:11] yeah regarding beam shapers uh as
[01:47:13] already introduced by um antonio uh i
[01:47:16] would like to present some uh nice
[01:47:19] results we have achieved together with
[01:47:21] an institute here in
[01:47:24] indiana autoshot institute for material
[01:47:26] research
[01:47:27] while examining different focus
[01:47:30] intensity distributions such as tophead
[01:47:32] or donut
[01:47:34] so this research included mainly two
[01:47:37] points first is uh the suitability for
[01:47:40] material processing with femtosecond
[01:47:42] lasers
[01:47:44] and second the generation of laser
[01:47:47] induced periodic surface structures on
[01:47:50] stainless steel
[01:47:52] so how was it done
[01:47:54] in order to generate different focus
[01:47:57] beam profiles top head donut or beam
[01:48:00] waste
[01:48:01] in different working planes we used our
[01:48:04] um as we call it uh airy shape you can
[01:48:06] see it here on the on the left hand side
[01:48:09] um
[01:48:11] and um yeah what what does it do
[01:48:14] it basically converts a collimated
[01:48:16] gaussian beam into a collimated area
[01:48:18] shaped intensity profile
[01:48:20] and then second we are using our
[01:48:24] focusing lens to perform
[01:48:26] for year transformation on the input
[01:48:29] intensity function
[01:48:30] and as a result the corresponding
[01:48:32] counterpart occurs uh in its in its
[01:48:35] focal plane so this can be seen also on
[01:48:37] the bottom left side
[01:48:39] um
[01:48:40] so this is how the how the setup
[01:48:42] basically looks like
[01:48:43] and some of the results are shown here
[01:48:46] in the middle
[01:48:47] as well as on the right hand side and
[01:48:49] what's the conclusion of all this and
[01:48:51] how how can beam shapers contribute to a
[01:48:54] more efficient process
[01:48:56] for material processing it obviously is
[01:48:59] the enlargement of the channel width
[01:49:02] and smaller ablation depth
[01:49:04] due to a
[01:49:06] more homogeneous distribution of pulse
[01:49:09] energy over a larger area
[01:49:12] and second um this is what you can see
[01:49:15] on the on the right hand side
[01:49:17] the laser uh induced uh structuring it's
[01:49:20] yeah
[01:49:21] as we have heard it also today doubling
[01:49:23] of the scanning velocity and the
[01:49:26] reduction of processing time by a factor
[01:49:28] of two
[01:49:29] or up to a factor of two with a constant
[01:49:32] surface
[01:49:33] structure quality quality
[01:49:35] um yeah these were our findings and this
[01:49:38] is what i would like to
[01:49:40] present to you today in addition to all
[01:49:43] the nice applications and challenges we
[01:49:45] have seen today
[01:49:47] um if you need further information just
[01:49:49] visit our website
[01:49:51] or
[01:49:52] visit our youtube channel
[01:49:54] shape it till you make it which gives
[01:49:57] really nice insights
[01:49:59] into beam shaping and
[01:50:02] yeah
[01:50:03] beam expansion thank you
[01:50:06] thank you sebastian so really nice
[01:50:09] compliment to all the
[01:50:11] comments and challenges we saw today
[01:50:14] i don't know if there is any question
[01:50:15] for for sebastian
[01:50:24] so my my doubt is uh what was what's
[01:50:27] next in terms of uh pin shaping uh
[01:50:30] because you present today the area uh do
[01:50:32] you have any other shapes or features in
[01:50:35] mind for future developments
[01:50:38] yeah so uh in in um as a as a
[01:50:41] consequence so the airy shape which uh i
[01:50:44] have just presented
[01:50:45] uh what we have recently introduced uh
[01:50:47] beginning of this year was a so-called
[01:50:49] as we call its query shape so it's it's
[01:50:52] a rectangular
[01:50:53] uh design so
[01:50:55] we turn it from from a circle into a
[01:50:57] square so this has been recently
[01:50:59] introduced and
[01:51:00] yeah apart from that
[01:51:02] if you're playing around in the lab
[01:51:04] you'll find find a lot of nice
[01:51:07] shapes and
[01:51:09] energy distribution
[01:51:12] let's say models so it's quite
[01:51:14] interesting but in the end
[01:51:16] yeah it's
[01:51:17] simply the demands we see from the
[01:51:18] market so anything you can think of just
[01:51:24] challenge us and we try to make it
[01:51:26] happen for you
[01:51:30] great thank you very much
[01:51:33] so if there is no no questions um i can
[01:51:36] proceed with the final slide the summary
[01:51:39] of uh our session today
[01:51:42] so let me share my screen again
[01:51:47] so uh we have been talking about uh
[01:51:50] different things so first we heard from
[01:51:53] andrea's trends in glass manufacturing
[01:51:56] uh so we saw what is uh what are they
[01:51:58] doing in terms of uh glass cutting i
[01:52:01] really like the 3d form glass for
[01:52:04] these glasses and also the freeforms
[01:52:07] uh also curious about the thick
[01:52:09] solutions
[01:52:10] and thank you for mentioning the this
[01:52:12] emerging laser dicing of micro
[01:52:14] components using your expertise in the
[01:52:16] in the class and from the discussion i i
[01:52:19] took that um
[01:52:20] it's good to to have higher power lasers
[01:52:22] within profile and tune a big shape to
[01:52:25] get better results in the future
[01:52:27] then we have some presentations about
[01:52:29] functional surfaces
[01:52:31] it was very interesting to learn about
[01:52:33] the lib as the proposed technique the
[01:52:35] proposed technique for getting surface
[01:52:37] structures in glass
[01:52:40] i also like the the presentation from
[01:52:41] bryant with the high power fenton second
[01:52:44] laser for scale texturing in the metal
[01:52:47] coils with the rotor roll proposed for
[01:52:48] mass production
[01:52:50] and then from the discussion also the
[01:52:52] use of higher power lasers
[01:52:54] could be a would mean a challenge on
[01:52:57] synchronization and then
[01:52:59] getting better performance in the lenses
[01:53:03] to
[01:53:04] not have problems with the thermal
[01:53:05] effects
[01:53:06] and then the quality control proposed
[01:53:08] the scatter metry uh as a solution that
[01:53:10] they think it would be nice
[01:53:12] in the future
[01:53:14] then with iman we
[01:53:16] were talking about this texture on large
[01:53:18] pieces so we saw their approach to get
[01:53:21] these systems without re-access to get
[01:53:24] better performance in in texturing and
[01:53:26] to avoid the problems they have with
[01:53:27] robot would take to have the robotics
[01:53:29] solutions
[01:53:31] and then we talk about online monitoring
[01:53:33] necessary and also how optimizing need
[01:53:35] guiding and being shaping uh to get
[01:53:37] better results um and as a final point
[01:53:41] even if she he was not the final one but
[01:53:43] darius
[01:53:44] make a summary of um optimus optimized
[01:53:47] parameters uh the label gas fluids for
[01:53:50] metals and for the electricals to get
[01:53:52] maximum ablation uh i like it also his
[01:53:55] approach for the intro separation of 15
[01:53:59] 15 nanoseconds in the case of probation
[01:54:01] of copper
[01:54:03] and from the discussion about different
[01:54:04] wavelengths
[01:54:06] i get the conclusion that the better
[01:54:08] results are obtained for this um 130
[01:54:11] nanometers in the infrared reading
[01:54:13] so thank you everybody for being here uh
[01:54:16] it was a pleasure um i think we can
[01:54:20] stop now the the recording because it's
[01:54:22] almost 5 p.m the last time
[01:54:24] um and then we can continue the
[01:54:27] we can continue the internal discussion
[01:54:29] if there is any other question that
[01:54:32] you didn't want to address because it
[01:54:33] was private that we want to do it public
[01:54:36] we are now in a small
[01:54:38] room so it's nice for discussion
[01:54:41] um i remember that antonio has
[01:54:43] one question missing from darius no from
[01:54:46] breiner if i'm right yes so that would
[01:54:49] be the starting point uh for this
[01:54:51] conversation yes so now we are no longer
[01:54:55] public we are like
[01:54:57] at the bar the pub so it's five o'clock
[01:54:59] it's