Light Conversion’s Post

Delighted to collaborate on this CaseStudy between Microrelleus SL & SENSOFAR Dimensional Analysis of Laser Engraved Steel Insert Utilizing the New #SWide. We partnered with SENSOFAR to create this case study, in which we evaluated the performance of the new S Wide by testing it on a steel insert engraved using Femtosecond laser technology at Microrelleus SL To characterize the sample, we employed Fringe Projection technology, a method that detects changes in patterns of structured light projected onto a surface. This advanced technique enables precise measurements of large areas with sub-micron repeatability. Thanks to Sensofar's #SWide, we were able to capture all dimensions in a single scan, confirming that all parameters met the required standards. #Sensofar #Microrelleus #Femtosecons #Laser Learn more by clicking here: https://lnkd.in/dRrFKGBM

Continuing our deep dive into the mechanical behavior of GRCop-42 produced using Laser Powder Bed Fusion (L-PBF) and Laser Powder Direct Energy Deposition (LP-DED), we present a comparative study of the surface texture. 🔍 Key Findings: 🔹 Surface Topography: L-PBF specimens exhibited significant powder adherence, maintaining relatively straight surfaces, while LP-DED specimens showed minimal powder residue but had noticeable surface waviness. 🔹 Mechanical Impact: These surface textures had a significant difference in the influence on the mechanical properties. L-PBF's surface texture did not appear to influence the resulting mechanical properties, whereas the build layers and surface waviness in LP-DED specimens resulted in reduced elongation and distinct failure mechanisms. 
Check out the detailed surface textures and understand how these microstructural differences play a crucial role in the performance of materials in various applications! Explore the full findings and understand the implications for aerospace and beyond in the latest research article: https://lnkd.in/ePfnKz5E #AdditiveManufacturing #3DPrinting #GRCop42 #MaterialsScience

🌞𝐏𝐡𝐨𝐭𝐨𝐥𝐢𝐭𝐡𝐨𝐠𝐫𝐚𝐩𝐡𝐲🌞 🔷Photolithography is a key process in semiconductor manufacturing, and its workflow involves several intricate steps. 🔷𝐒𝐭𝐞𝐩𝐬: 🔸𝐒𝐮𝐛𝐬𝐭𝐫𝐚𝐭𝐞 𝐩𝐫𝐞𝐩𝐚𝐫𝐚𝐭𝐢𝐨𝐧: The process begins with a clean semiconductor substrate, typically made of silicon. Any contaminants or particles on the surface are removed through a meticulous cleaning process. For this purpose, ultrapure water and a nitrogen stream are used. 🔸𝐏𝐡𝐨𝐭𝐨𝐫𝐞𝐬𝐢𝐬𝐭 𝐜𝐨𝐚𝐭𝐢𝐧𝐠: A thin layer of photoresist, which is a light-sensitive material, is uniformly applied onto the surface. This photoresist layer serves as a light-sensitive film that will define the desired pattern. 🔸𝐒𝐨𝐟𝐭 𝐛𝐚𝐤𝐞: The coated substrate undergoes a soft bake, which involves heating to remove any residual solvents from the photoresist, ensuring a stable and uniform layer. This step also solidifies the photoresist. 🔷𝐈'𝐥𝐥 𝐜𝐨𝐧𝐭𝐢𝐧𝐮𝐞 𝐰𝐢𝐭𝐡 𝐭𝐡𝐞 𝐬𝐮𝐛𝐬𝐞𝐪𝐮𝐞𝐧𝐭 𝐩𝐡𝐨𝐭𝐨𝐥𝐢𝐭𝐡𝐨𝐠𝐫𝐚𝐩𝐡𝐲 𝐬𝐭𝐞𝐩𝐬 𝐢𝐧 𝐦𝐲 𝐧𝐞𝐱𝐭 𝐰𝐞𝐞𝐤𝐥𝐲 𝐩𝐨𝐬𝐭. 𝐇𝐨𝐰𝐞𝐯𝐞𝐫, 𝐢𝐟 𝐲𝐨𝐮 𝐤𝐧𝐨𝐰 𝐭𝐡𝐞𝐦 𝐨𝐫 𝐰𝐨𝐮𝐥𝐝 𝐥𝐢𝐤𝐞 𝐭𝐨 𝐠𝐮𝐞𝐬𝐬, 𝐟𝐞𝐞𝐥 𝐟𝐫𝐞𝐞 𝐭𝐨 𝐦𝐞𝐧𝐭𝐢𝐨𝐧 𝐭𝐡𝐞𝐦 𝐢𝐧 𝐚 𝐜𝐨𝐦𝐦𝐞𝐧𝐭. 𝐘𝐨𝐮 𝐜𝐚𝐧 𝐜𝐡𝐞𝐜𝐤 𝐲𝐨𝐮𝐫 𝐚𝐧𝐬𝐰𝐞𝐫𝐬 𝐧𝐞𝐱𝐭 𝐰𝐞𝐞𝐤!🤝🏻 #materialsscience #silicon #Photolithography #spincoating

For the first time, a distinct application of polarization singularities in #laser #microprocessing demonstrated! "Polarization singularities provide a unique ability to dynamically shape vector beams using the design of geometric phase elements (GPEs) proposed in this work and based on hollow center space variant #waveplates.  ... The produced GPEs were successfully used to generate high-energy polarization singularities and these were employed in #glasswelding, #thinfilm removal, and #silicon #ablation applications.  The experimental results demonstrate the significant impact of the shape of the beam on the material processing results.  Polarization singularities with tunable #FlatTop beam profiles offer enhanced control over heat deposition and material modification, enabling the production of more precise and uniform structures compared to Gaussian beams. These findings underscore the potential of flat-top beams in various material processing applications, including #volume #modification of transparent materials and selective #surface #ablation of thin metallic films, as well as for #semiconductors." The article - Polarization singularities for shaping of vector flat-top beams in utilization for high-power laser micromachining of various materials - was published in Optics & Laser Technology, Volume 177, 2024. The authors: Ernestas Nacius, Orestas Ulčinas, Sergej Orlov, Vytautas Jukna.

This is a Polytec Scanning Laser Vibrometer. According to the company, "Laser vibrometers focus on the small details, measuring deflection shapes for model validation. They assess the frequency response and determine resonance frequency, impulse response and Q factor." When a company designs a loudspeaker enclosure with apparent heroic construction methods, attempting to minimize cabinet resonance, audiophiles rejoice. The question I have: "How do you know if it really works?" This is what I appreciate with Magico. If there is a way to know, they find it and invest in it. Magico's loudspeaker enclosures are designed with the help of the Polytec, and although I can't reveal all of the technical solutions this has led to, I can assure you that the enclosures created by Magico today contribute no audible distortion to the sound you hear. They can prove it—and you can [not] hear it. #Magico

[New application note: using AFM for investigating ceramics and glass] ICSPI published a new application note focusing on how AFM can be used for ceramics. AFM provides quantitative insight into the morphology and roughness of ceramics and glasses. Another benefit is that AFM can directly scan non-conductive samples. ☑️ You can read a preview and download the new application note here: https://lnkd.in/d6ndSqA9 You can also check out selected publications using our AFM systems for ceramics and glass, include investigating indentation, ceramic membranes and phase change materials in microfabrication (links go to ICSPI's publication page): ☑️ Indenting glasses with indenters of varying stiffness and sharpness (2023) https://lnkd.in/dKbeReBx ☑️ Efficient preparation of ultrathin ceramic wafer membranes for the high-effective treatment of the oilfield produced water (2022) https://lnkd.in/dKbeReBx ☑️ Vanadium dioxide phase change thin films produced by thermal oxidation of metallic vanadium (2020) https://lnkd.in/dKbeReBx ☑️ Learn more about usinf AFM for ceramics https://lnkd.in/dPEc4dnK 📍IN CASE YOU MISSED IT📍Redefining nanoscale imaging with the Redux Last month, ICSPI launched their latest instrument: the Redux Atomic Force Microscope! https://lnkd.in/dWqK-dta 🔎 What's different about the Redux? The Redux uses ICSPI's AFM-on-a-chip technology to speed up time-to-data: one-click configuration, automatic approach and scanning accelerates research and quality control. Featuring a motorized XY stage and integrated microscope, the Redux allows you to easily navigate to the region of interest on your sample: like landing on a fiber, scratch or patterned structure. The sample platform can also accommodate samples up to 125 mm x 100 mm in size. ➡️ Compare the Redux with the nGauge here: https://lnkd.in/dnzHfpPx 💡 Interested to see the Redux in action? Request a demo: laboratorio@abcs.it #ABCS #ceramics #glass #AFM #Redux #nGauge #ICSPI #integratedmicroscope

Optical metrology is a method of measuring objects using light. It involves shining light on an object and analyzing how the light reflects or changes. This helps determine properties like distance, shape, and surface texture. Common techniques include: - Interferometry: Uses light waves to measure distances. - Speckle pattern analysis: Measures surface roughness by observing scattered light. - Structured light: Projects patterns to create 3D shapes. This approach is non-contact, meaning it doesn’t touch the object, reducing the risk of damage while providing accurate and quick results. #OpticalMetrology #PrecisionMeasurement #QualityControl #3DPrinting #ManufacturingInnovation #LaserTechnology #Metrology #IndustrialAutomation #AIinManufacturing #SemiconductorIndustry

In recent months there has been an increased demand to measure optical components with our 3d profilometers. Apparently scratches with a depth of just a few nanometers can impair surfaces if the roughness is below 1 Angstrom. While looking for a sample with the appropriate polishing degree that is not subject to secrecy, I found it in the crystal glass of my newly purchased watch. Have a look on the terrible scratched wavy surface - and the roughness parameters. I have summarized the advantages of powerful coherence scanning (white-light) interferometers for such measurements in the attached presentation. #interferometry;  #surface;  #metrology;  #3dscanning;  #roughness; #measurements;  #qualitycontrol;  #automation;  #microgeometries; #microstructure;  #nanostructures;  #3dsensor;  #optical;  #profiler;  #surfacetexture;  #GBS;  #smartWLI;  #CSI;  #WLI;  #visionsystem;  #machinevision;  #3dmeasurement;  #3dinspection;  #automation;  #sensor;  #factoryautomation;  #engineering

Next generation optical surface profiling | TopMap Micro.View® & Micro.View®+ For 3D surface characterization regarding surface roughness, texture and areal evaluation of form parameters with a resolution down to the nanometer range, use the TopMap whitelight-interferometers Micro.View and Micro.View+. The optical profilers with microscope objectives feature the CST Continuous Scanning Technology allowing to use the entire z travel range as measuring range, leading to maximum flexibility in sample positioning. Focus Finder and Focus Tracker enhance the ease of use, and with motorized stages, samples stay focused at all times. The inherent Smart Scanning Technology enables areal topography measurement from all surfaces, even on dark and shiny materials. Choose add-ons like ECT Environmental Technology Compensation for measuring in challenging production environments and extract both surface and color information for superior defect detection and documentation of precision mechanics and electronics. Choose your own configuration within the modular concept of the Micro.View surface profiler and stay up to date with 4 years warranty and a lifetime software support. TopMap - Performance beyond metrology. #surface #profiler #topmap #optical #metrology #roughness #flatness #waviness #profilometry #whiltelight #interferometer More information Contact us: Machine Tools India Limited Polytec Joseph Francis Ajay Chawla Vijay Anand K Jayvant Patil Parag Sawant M.BALA SUBRAMANIAN

From the modeling point of view it is much easier working with round turns (solid round or Litz wires) than with rectangular turns (strips or foils of copper), as the magnetic field produced by round turns is always axially symmetric. This is really comfortable in toroidal cores, where each turn has a different angle. However, when working with rectangular turns in toroidal cores we have to be really careful to keep track of the angle of the turn, and take it into account when calculating the magnetic field produced by that turn. It might sound like a lot of work, that it might not be worth it, even that we might have enough with calculating the DC resistance of the turns, but on the other hand, but doing things properly, we get the most accurate estimate of the AC resistance of our toroidal magnetic, plus its leakage inductance. And if you look at the models and don’t even know where to start the implementation, don't worry, we are giving it for free, open-sourced available in OpenMagnetics git! What do you think about rectangular wires in toroidal cores? do you know any other software that supprots them? #magnetics #powerelectronics #opensource