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Wednesday, October 9, 2019
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Monthly newsletter from the editors of Photonics Spectra, with features, popular topics, new products, and what's coming in the next issue. Manage your Photonics Media membership at Photonics.com/subscribe.
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Face Recognition Systems and Consumer Devices
Many forms of biometric authentication are technically feasible, but one in particular has won acceptance in use cases that call for high security and minimal intrusiveness for the user: face recognition. Today, most people’s interactions with face recognition will occur in one of two ways: They’ll use it either to unlock their smartphones or to support authentication in applications such as mobile payments, or they'll use it at automated passport
control machines when crossing a national border.
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Advancements in Ultrafast Multi-100-W Average-Power Thin-Disk Lasers
In both scientific research and in industrial materials processing, high-average-power diode-pumped solid-state lasers have become an indispensable tool. A crucial aspect of these lasers is the need for effective heat removal without introducing thermo-optic distortions. One way to address this challenge is by shaping the laser gain medium as a very thin disk, as demonstrated by A. Giesen and colleagues. Along with supporting power scaling by using a larger beam on the disk, this approach is advantageous for generating ultrashort pulses with high peak power. Since the laser beam only passes through a small amount of material, high peak powers can also be achieved before the onset of detrimental nonlinear optical effects. When implemented with ytterbium-doped gain materials, in particular ytterbium-doped yttrium aluminum garnet, femtosecond pulsed lasers with average powers at the kilowatt level have been obtained.
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Optimizing Freeform Optics
Astronomical imaging from both ground and space provides precise data, and each has its pros and cons. Ground-based observation benefits from flexible infrastructure with large telescopes and instruments but suffers from atmospheric turbulence and light pollution, whereas observation from space is free of turbulence, but the telescopes must meet onerous size, weight, and cost restrictions for launch. The size and weight of space telescopes continue growing while costs must be reduced.
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Norland Optical Splice - Easy To Use!
Norland Products Inc.
The Norland UVC Optical Splice is the first really easy to use, high performance connection for optical fibers. This splice incorporates a precision TRW glass alignment guide and a proactive glass sleeve in a unique one piece design that minimizes handling of bare fiber.
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OEM Microscope Components
Nikon Instruments Inc.
Nikon provides a large range of microscopy components to satisfy diverse optical requirements. These components can be incorporated into imaging systems to fulfill unique experimental requirements. Nikon is staffed with a dedicated team to service large volume and OEM requests.
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Optics and Illumination Software
Lambda Research Corp.
TracePro combines a graphical user interface with solid modeling, Monte Carlo ray tracing, analysis features, CAD import/export, optimization methods, and a complete and robust macro language to solve a wide variety of problems in illumination design and optical analysis.
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Light Pipes and Homogenizers
IRD Glass
IRD Glass specializes in high precision light homogenizers and light pipes. Light pipes and homogenizers are designed to smooth out the irregularities inherent in a raw non-uniform beam of light to create a more uniform and evenly distributed beam of output energy.
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Optical Filters for Point of Care Applications
Delta Optical Thin Film A/S
Physically small custom optical filters. Delta Optical Thin Film can deliver physically small custom optical filters for research, clinical, and PoC fluorescence-based instruments in high volumes at low cost. By combining our optical filters with our knowledge in complete optical design, we help our customers with more than the optical filters.
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Ultra-Small High Speed Streaming Camera
AOS Technologies AG
If size or price are important, the AOS U Camera series is a perfect fit. The tiny USB 3.0-based high speed streaming camera offers superior performance: 1280 x 1024 pixel at up to 200 fps or 1920 x 1080 at 170 fps, and up to 5800 fps at reduced resolution. This small camera will exceed all expectations.
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Highest Performing Notch Filter
Chroma Technology Corp.
Chroma Technology introduces the TopNotch™ line of narrow band, notch rejection filters. Offering best-in-class performance with transmission from 350-1600 nm and rejection FWHM of 3% of center wavelength. With a blocking range of at least 6 nm >OD6, TopNotch™ filters provide blocking for a wider range of laser diodes.
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Smart MEMs Raman for Area Scanning
CloudMinds Technology Inc.
The newly released CloudMinds’ XI2 is a cloud AI MEMs Raman device specifically designed for area sampling. This novel XI2 is built upon CloudMinds’ prism award winning handheld Raman XITM but is also equipped with MEMs scanning mirror.
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Micro Injection Molding
Accumold
Accumold® is a high-tech manufacturer of precision micro, small and lead frame injection molded plastic components. Utilizing processes developed from Accumold's Micro-Mold® technology, the company designs, builds and produces unique molds and parts efficiently for markets that include Micro Electronics, Medical, Micro Optics, Automotive, and Military Applications.
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Specialty Coatings for Specialty Applications
Deposition Sciences Inc. (DSI)
Our mission at DSI is simple – to enable our customers to successfully complete projects and expand their own businesses. Complex optics applications need high-quality coatings, and backed by 35+ years of experience, DSI has a wide range of resources that enhance our coating capabilities, including several coating types, substrates, and testing equipment.
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Injected Nanoparticles Could Enable Sight Beyond Visible Spectrum
To enable the detection of longer wavelength light in mammals, scientists at the University of Massachusetts Medical School, working with colleagues at the University of Science and Technology of China, developed ocular-injectable photoreceptor-binding upconversion nanoparticles (UCNPs).
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A research team at Helmholtz-Zentrum Dresden-Rossendorf (HZDR), in collaboration with researchers at Technische Universität (TU) Dresden and Deutsches Elektronen-Synchrotron (DESY) in Hamburg, has produced nanowires with operating wavelengths that can be tuned over a wide range by altering the structure of the nanowire’s shell.
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As part of their research into optical states of plasmonic-photonic crystals (PPCs), scientists at Kazan Federal University investigated three-dimensional opal-like plasmonic-photonic crystals (OLPPCs), focusing on why OLPPCs do not admit light of certain wavelengths.
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What You Need to Know About Your AM Laser’s Personality: Power Is Not the Complete Story
Tue, Oct 22, 2019 1:00 PM - 2:00 PM EDT
The performance of your laser will change over time. A power check will not give you the complete story; to keep the process running efficiently and product quality high, you need a more complete understanding of your laser’s personality before and after each build. In this webinar, presented by Ophir, you will learn why laser system performance changes and why it is important to understand — as well as when, how, and how often to measure and analyze the laser’s performance.
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Features
Lidar, Detectors, Liquid Lenses
Photonics Media is currently seeking technical feature articles on a variety of topics for publication in our magazine Photonics Spectra. Please submit an informal 100-word abstract to Susan Petrie, Senior Editor, at [email protected], or use our online submission form www.photonics.com/submitfeature.aspx.
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Since 1967, Photonics Spectra magazine has defined the science and industry of photonics, providing both technical and practical information for every aspect of the global industry and promoting an international dialogue among the engineers, scientists and end users who develop, commercialize and buy photonics products.
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