Request InfoSTANDA UABZero-order crystalline quartz retardation plates with wavelengths for first, second, third and fourth Nd:YAG harmonics are available from Standa Ltd. The company says that the plates feature antireflection coating, with reflection of <0.3 percent at each surface, a surface finish of 20/10 scratch/ dig, a clear aperture of 20 mm, retardation tolerance of λ/200 at 20 °C, wavefront distortion of λ/10, wedge of 2 in. and mount diameter of 25 + 0/0.5 mm.See full productRelated content from Photonics MediaPHOTONICS HANDBOOK ARTICLESPhotonics HandbookAntireflection Coatings for the Ultraviolet, Visible and Near-IRWEBINARSPhotonics.com 1/10/2023Challenges in Designing and Building Optical Systems for SpaceHardware is hard, optics hardware is harder, and optics hardware in space is the hardest of them all. When designing systems for space, one must account for all the standard specifications of a...Photonics.com 1/19/2021Nanostructured Surfaces: An Alternative to Thin-Film Antireflection CoatingsNanostructured antireflective surfaces are a promising alternative to thin-film antireflective coatings for high-power laser applications. Rather than depositing coating material onto the surface of...Photonics.com 7/22/2021STANDARDS UPDATE: Vision Standards: An Overview of Global and A3 DevelopmentsStandards play a key role in the vision and imaging industry by ensuring interoperability of components, increasing market size, and shortening the time it takes to get new products to market. As the...Photonics.com 1/9/2023Innovations in Ultrashort-Pulse and RF-Excited CO2 Lasers Expand Materials Processing ApplicationsIndustrial laser materials processing is constantly evolving. Industries as varied as pharmaceutical, consumer electronics, automotive, aerospace, and textiles, among others, have benefited from new...PHOTONICS DICTIONARY+ TERMSPhotonics Dictionarycold coatingA method of applying antireflection coatings to optics that avoids the elevated temperatures normally used. A cold coating will not be as durable as a normal coating.Photonics Dictionarysoft coatingA term describing an antireflection coating that may be applied to optics that cannot tolerate the high temperatures usually required for normal "hard'' coatings. Such coatings lack durability...Photonics Dictionaryantireflection coatingAn antireflection coating (AR coating) is a thin film or coating applied to optical surfaces, such as lenses or windows, to minimize unwanted reflections and increase the transmission of light...Photonics Dictionarymagnesium fluorideA colorless, crystalline compound whose low refractive index (n = 1.38) makes it effective as a lens antireflection coating when deposited by thermal evaporation in a near vacuum. This process...PHOTONICS BUYERS' GUIDE CATEGORIESInfrared CoatingsAntireflection CoatingsAn antireflection coating is a thin film or coating applied to optical surfaces, such as lenses or windows, to minimize unwanted reflections and increase the transmission of light through the...COMPANIESPhotonics Buyers' GuideFOCtek Photonics Inc.FOCtek provides customers with all types of custom manufactured lenses, Precision Optical Components, Polarizing Optics, Prisms, Filters, Coatings, Optical Systems, Crystals, Nonlinear Crystals,...Photonics Buyers' GuideMLD Technologies LLCExperts In Thin-film Coating Design We practice a design-before-quote approach to help customers refine specifications and minimize technical risk. We understand how coated optical elements...Photonics Buyers' GuideHenan UM Optics Ltd. (Umoptics)Henan UM Optics Technology Co. Ltd. (Umoptics) is a high-tech enterprise integrating material growth, component processing, coating, and devices. The company employs more than 400 people and has a...Photonics Buyers' GuideFresnel Technologies Inc.Fresnel Technologies Inc. is an expert manufacturer of molded plastic optics, including Fresnel lenses and related optical components, as well as infrared transmitting materials and optics made from...