Request InfoOptical Surfaces Ltd.KENLEY, England, Aug. 21, 2018 — Athermalized beam expanders from Optical Surfaces Ltd. deliver stable, high performance. The expanders are based on a Dall-Kirkham off-axis mirror design that incorporates INVAR elements to provide thermal stabilization. In addition, to better control thermal behavior, the off-axis mirrors have a short focal length, resulting in a very robust assembly that is less sensitive to temperature changes. As a result, high optical performance is maintained over a wide temperature range. Benefiting from an off-axis design, Optical Surfaces athermalized beam expanders provide an...See full productRelated content from Photonics MediaPRODUCTSPhotonics Spectra September 2023 IssueModular Beam ExpanderOptical Surfaces’ pre-aligned large diameter beam expander modules enable complex 5-degrees of freedom set-up in a matter of minutes. The modular beam expander assembly components include...Photonics Spectra October 2022 IssueCompact Beam ExpandersThe A1 series of compact beam expanders from Optical Surfaces Ltd. delivers ×30 magnification from 2-mm aperture high-power laser beam lines. Delivering artifact-free high magnification,...Photonics Spectra July 2023 IssueMirror MountsWedged back paraboloid mounts from Optical Surfaces Ltd. provide a secure and stable platform for mirror diameters from 50 to 200 mm. Constructed in black anodized aluminum, the device’s...BioPhotonics Sep/Oct 2023 IssueTunable Pulsed Nanosecond LaserThe Peacock XT 355 from Quantel Laser is a tunable pulsed nanosecond laser source in the visible and NIR wavelengths. 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At one...Photonics HandbookLaser Safety: Important ConsiderationsWhen purchasing an industrial laser system, the astute buyer will look for a Class 1 laser product — a system where the laser beam hazard is completely enclosed and there is no potential laser...Photonics HandbookWhat Is Photonics?Photonics is the study of light and other types of radiant energy whose quantum unit is the photon. The impact of photonics on research, technology, navigation, culture, astronomy, forensics, and...Photonics HandbookFluorescence Lifetime Imaging: Choosing the Best ApproachThe term fluorescence is often applied as a synonym for photoluminescence, although luminescence actually covers fluorescence and phosphorescence. Both of these terms describe the process of...WHITEPAPERSPhotonics.com 12/2/2022Fast Axis Collimator Lenses (FACs) - The Essential Components for Laser DiodesWe started developing FACs more than 15 years ago. The result is highly automated in-house processes which allow for competitive prices – even with high volumes. Diode lasers are efficient, compact,...Photonics.com 11/17/2023Nonlinear Crystal Selection and SpecificationA key task faced by engineers using nonlinear crystals is the correct selection and effective specification of the appropriate NLO crystal for a particular laser design or application. GAMDAN Optics...Photonics.com 2/21/2024Heat Conduction Joining the Multispot Focusing LensDespite the rapid development of modern lasers, the Gaussian intensity distribution often leads to problems, especially in laser material processing. When welding wide weld seams, a top-hat profile...Photonics.com 12/2/2022FISBA READYBeam™ - Compact Powerful Laser SourceThe FISBA READYBeam™ is our answer to customers' increasing demand for compact, powerful, and reliable multicolor laser source that can be easily integrated into existing set-ups. 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For silicon photonics specifically, macroeconomic headwinds and concerns about war push against the tide of opportunity driven by the rapid...PHOTONICS DICTIONARY+ TERMSPhotonics Dictionarymagnetorheological finishingMagnetorheological finishing (MRF) is a precision optics polishing technique used for shaping and finishing optical surfaces to achieve extremely high levels of smoothness and accuracy. It is...Photonics Dictionarylateral shearing interferometerA lateral shearing interferometer is an optical device used in interferometry to measure phase differences between two beams of light. Interferometry is a technique that combines and analyzes...Photonics Dictionarydiamond-turned opticDiamond turning refers to a precision machining process used to produce complex optical components, particularly lenses and mirrors, from materials such as metals, plastics, and crystalline materials...Photonics Dictionaryfreeform opticsFreeform optics refers to the design and fabrication of optical surfaces that do not follow traditional symmetric shapes, such as spheres or aspheres. Unlike standard optical components with...VIDEOSPhotonics.com 6/20/2023LASEROPTIK Blockbuster 4KWelcome to the movies and inside the home of laser optics and coatings! Get an impression of our daily routine and enjoy our thin films film stars ...Photonics.com 12/6/2022Telecentric Lenses - Shanghai OpticsTelecentric Lenses are widely used in metrology instruments, laser marking systems, and AOI (Automatic Optical Inspection) machines. Here’s a 360 view of one of our custom Telecentric Lenses which...Photonics.com 6/19/2018Tech Transfer Programs Bridge Gap Between Industry and ResearchTechnology Transfer Programs are often a concerted effort to share skills, knowledge, technologies, methods of manufacturing, samples of manufacturing, and facilities among governments or...Photonics.com 8/10/2018Capasso Group's Optical Harmonic Combs Could Operate as THz SourceResearchers at Harvard's John A. Paulson School of Engineering and Applied Sciences (SEAS) have discovered a new phenomenon of quantum cascade laser frequency combs, which would allow the devices to...PHOTONICS BUYERS' GUIDE CATEGORIESFreeform OpticsFreeform optics refers to the design and fabrication of optical surfaces that do not follow traditional symmetric shapes, such as spheres or aspheres. Unlike standard optical components with...Angular and Linear Measuring InterferometersLaser CollimatorsDye Laser CellsCOMPANIESPhotonics 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' GuideOhara CorporationOHARA manufactures more than 130 environmentally safe optical glass types, free of both lead and arsenic. More than 300 tons of optical glass are melted per month, available in the following forms of...Photonics Buyers' GuideLaCroix Precision OpticsThe LaCroix name is synonymous with quality precision optics. Since 1947, three generations of family leadership have guided LaCroix Precision Optics to become the premier precision optics...Photonics Buyers' GuideExcelitas Technologies Corp.Excelitas Technologies® Corp. is a leading industrial technology manufacturer focused on delivering innovative, market-driven photonic solutions to meet the illumination, optical, optronic,...