Request InfoCobolt ABCobolt AB has produced RTA periodically poled crystals for nonlinear frequency conversion applications. The RTA produces better transmission in the infrared range (0.35 to 5.3 µm) than KTP crystal, also produced by the company. Cobalt says the materials provide walk-off-free interactions, high nonlinearity and good power handling capability.See full productRelated content from Photonics MediaPRODUCTSPhotonics.com 5/18/2023Nickel AlloyThe UniFuse™ IN625 Nickel Alloy from Uniformity Labs Inc. delivers repeatable and reproducible mechanical properties across the build bed. With optimized parameters for laser powder bed...Photonics Spectra June 2023 IssueCO2 Laser Focusing LensesLaser Research Optics’ CO2 zinc selenide (ZnSe) laser focusing lenses are designed for 10.6-µm, 200-W to 400-kW steel cutting lasers that cut heavy steel fabrications. They come in...Photonics.com 11/10/2022Polishing PowdersMicrolux Alumina Powders from Meller Optics Inc. are high-purity calcined alumina polishing abrasives offered in two grades and seven particle sizes that can be mixed to match optical materials. ...Photonics.com 11/21/2023Multi-Axis Alignment SystemThe F-143 from PI is a multi-axis alignment system for silicon photonics automation. With an XYZ configuration, each of the system’s axis provides a travel range of 25 mm with a maximum travel...ARTICLESPhotonics Spectra January 2024 IssuePhotonic Crystals Imitate Gravitational Effects on LightA group of researchers has replicated the way that light would behave if it were subject to gravity, supporting a recent scientific theory about pseudogravity. 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The materials are promising for solar...Photonics Spectra February 2023 IssueBluGlass, Ganvix Partner to Develop Green Gallium Nitride VCSELsSemiconductor technology company BluGlass has signed a paid development agreement with Ganvix Inc., a developer of gallium nitride (GaN) VCSELs, to develop GaN VCSELs for green wavelengths (515 to...Photonics Spectra February 2023 IssueUltrafast Bursts Extend Chip Lithography Below SurfaceBecause semiconductors serve as the backbone of modern technologies including cellphones, cars, robots, and other devices, the continuous need for miniaturized and powerful chips is placing increased...PHOTONICS HANDBOOK ARTICLESPhotonics HandbookLaser Measurement Systems: Best PracticesGiven the pace at which technology advances, there always seems to be a learning curve. With the abundance of consumer electronics available, there typically is no right or wrong way to use these...Photonics HandbookOptical Materials: Double-Sided Lapping and PolishingDouble-sided processing is a batch-type process that uses planetary action — generally with loose, abrasive particles suspended in a liquid vehicle — to abrade material almost equally...Photonics HandbookHigh-Brightness LEDs: A Boost from High-Performance SiliconesHigh-brightness LEDs have found their way into applications such as signs and displays, cell phone flash modules, automotive lighting and general illumination. Some applications, however, such as...Photonics HandbookOptical Coating: Materials and Deposition TechnologyOptical coatings are deposited as thin-film multilayers of a variety of materials using specific deposition techniques. Coatings are applied to optical components that are intended for use at...WHITEPAPERSPhotonics.com 3/28/20241535nm Erbium Doped Glass Solid-State Laser for Rangefinding, LiDAR, and CommunicationThe erbium-doped glass laser is used in the field of eye-safe rangefinders and is characterized by its reliability and cost effectiveness. 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But even as the U.S. rebuilds...PHOTONICS DICTIONARY+ TERMSPhotonics Dictionarypolarizing coatingA coating made up of particular birefringent materials having polarizing properties. It may be used, in some cases, to replace Polaroid or polarizing prisms.Photonics Dictionaryinfrared optical materialThe range of materials that, unlike glass, may be used in the infrared. Water-soluble salts, such as cesium iodide, and other substances such as arsenic sulfide, selenium, thallium bromide-iodide and...Photonics Dictionarycomputer polarization holographyA technique used to store wavefront information on thin polarization information-recordable materials by controlling the polarization angle of a small illuminating spotlight in each sampling cell on...Photonics Dictionaryadiabatic laser colorimetryMethod for studying absorption coefficients of low-loss materials, in which a sample is allowed to come to thermal equilibrium with its surrounding blackened enclosure. 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