Request Info4D Technology CorporationTUCSON, Ariz., June 7, 2022 — The PhaseCam MWIR interferometer from 4D Technology Corp. is a dual-port device that measures optical surface shape and wavefront error at a 3.39-µm IR wavelength for fast acquisition with vibration and turbulence immunity. Even when measurements are taken over long distances in turbulence or in vibration, the interferometer measures critical optical parameters like transmitted wavefront error. These measurements provide validation of IR optical components in reflection or transmission, in system alignment situations, or for single optics. 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Tate will be responsible for growing sales globally. ...Photonics Spectra April 2022 IssueMicroresonator Increases Strength of Light-matter InteractionsResearchers at the University of Massachusetts Amherst, the University of Maryland, and the National Institute of Standards and Technology (NIST) built an on-chip microresonator that strengthens...Photonics.com 7/6/2022Matt Eichenfield Named SPIE Endowed Chair: People in the News: 07/06/22Matt Eichenfield, a specialist in quantum photonics and distinguished member of the technical staff at Sandia National Laboratories, has joined the University of Arizona’s Wyant College of...PHOTONICS HANDBOOK ARTICLESPhotonics HandbookOptical Delay Lines: Key to Time-Resolved Measurements: To obtain an accurate means of creating reliable delays in any time-resolved spectroscopy or dynamic experiment, several factors about the delay line stage must be considered to reduce or eliminate errors associated with linear stages.One of the most critical elements of any time-resolved spectroscopy and dynamics experiment is the optical delay line. A typical optical delay line consists of a retroreflector or folding mirrors on...Photonics HandbookUnderstanding Surface Quality: A Practical Guide: Surface quality is one of the most scrutinized specifications in the optics industry. It is critical that the suppliers and customers have a consistent approach during the inspection process. These guidelines are intended to help ease communication between suppliers and customers for better products and business.Surface quality has become one of the most poorly understood specifications in the optics industry. A significant portion of the confusion stems from the two major competing (and largely...Photonics HandbookMeasuring Aspheres: Selecting the Best Technique: The metrology method should match the nature of the part and the inspection constraints.The benefits of aspheric lenses are numerous: They allow for a reduction in spherical aberrations and are ideal for focusing or collimating light, as they can achieve a low ƒ-number. Aspheres...Photonics HandbookAspheric Lenses: Optimizing the Design: This second of two articles discusses the tools optical designers need to tailor their designs to the appropriate manufacturing process, optimizing the cost of component fabrication.With the understanding of aspheric lens manufacturing provided in part one of this article, designers have the tools to optimize their aspheres; the next step is to understand how to specify and...WHITEPAPERSPhotonics.com 1/14/2021Fractional Pixel Method for Improved Pixel-Level Measurement and Correction (Demura) of High-Resolution DisplaysAs display resolutions increase, imaging systems are challenged to continue to provide accurate pixel-level measurements while applying increasingly limited relative imaging resolution during...Photonics.com 2/26/2021OE Products for Pharmaceutical & Medical IndustriesWe offer imaging components tailored for a wide variety of pharmaceutical quality control needs: standard and special lenses, lighting, cameras, controllers, and machine vision software.Photonics.com 1/14/2021Automated Solutions for SAE Standard HUD MeasurementHead-up display (HUD) technology is one of the largest growth areas in the automotive market, and standard measurement criteria are rapidly being defined to evaluate augmented projections for visual...Photonics.com 1/14/2021Five Signs that a Photometry-Based Imaging System is the Right Choice for Your Inspection ApplicationPhotometric imaging solutions bridge the gap between machine vision systems and true human vision, offering consistent, quantifiable data for automated processes that matches the visual acuity of...WEBINARSPhotonics.com 9/16/2020Principles of Laser Beam ProfilingBeam profiling describes the measurement of the spatial distribution of power of a laser beam. Laser users often wonder if they need to profile their lasers but may have nagging doubts as to why....Photonics.com 5/20/2021Measuring the Power and Beam Profile of Divergent Laser SourcesLasers with large beam divergence are used in a number of applications, such as remote sensing, optical communications, and materials processing. Large beam divergences create challenges for reliably...Photonics.com 9/26/2018Imaging Applications in Quantum ResearchQuantum technology, an exciting and evolving field combining physics and engineering, applies the properties of quantum mechanics to next-generation computing applications. It has the potential to...Photonics.com 9/17/2019Waveguide Simulation with the Beam Envelope MethodThe beam envelope method is an efficient numerical tool for solving nonlinear optics in long and slender structures, such as optical waveguides, laser rods, and more. This webinar will demonstrate...PHOTONICS DICTIONARY+ TERMSEDU.photonics.com 9/8/2009diffraction gratingA glass substrate carrying a layer of deposited aluminum that has been pressure-ruled with a large number of fine equidistant grooves, using a diamond edge as a tool. Light falling on such a grating...EDU.photonics.com 5/8/2017active opticsTechnology that corrects the shape of reflective optics; primarily applied in large telescope systems, in order to compensate for slowly varying changes in temperature, wind and mechanical stress.EDU.photonics.com 9/8/2009emergent rayIn optics, the light ray leaving a medium in contrast to the entering or incident ray.EDU.photonics.com 9/8/2009infrared scannerAn optical system used to collect infrared energy from a scene using scanning optics with a point or line detector, as compared with a fixed optical system with a full two-dimensional detector array.VIDEOSPhotonics.com 5/27/2022Rainbow Research Optics LLC Introduction VideoRainbow Research Optics LLC Introduction VideoPhotonics.com 2/21/2018Photonics on the Showroom Floor and in the Lab - LIGHT MATTERS 02.2018On this month's episode of Light Matters, we take you on a brief tour of the Higgins Laboratories at Worcester Polytechnic Institute (WPI). Quinsigamond Community College and WPI received a $4M grant...Photonics.com 7/2/2018Light Tomorrow with TodayLuminate NY, the only optics, photonics and imaging (OPI) accelerator and investment fund in the world, announced the final winners at the Light Tomorrow with Today event in Rochester, NY. For the...Photonics.com 10/26/2017Light Matters Extra: Optifab 2017 - 10.2017In this month's Light Matters Extra, we give you an in-depth look at North America's largest optical fabrication exhibition and show – Optifab 2017. 188 companies filled the showroom floor of the...PHOTONICS BUYERS' GUIDE CATEGORIESMultichannel SpectrophotometersLaser-Induced Breakdown SpectrometersOptical Thickness GaugesAtomic Absorption SpectrophotometersAtomic absorption spectrophotometers are used to analyze the sharp resonance line of a sample that, in a flame, emits an atomic vapor. It consists essentially of a light source, a combustion system,...COMPANIESPhotonics Buyers' Guide4D Technology Corporation4D Technology designs and manufactures laser interferometers, surface roughness profilers, snapshot micropolarizer cameras, and handheld surface gauges, for accurate measurement of optics, optical...Photonics 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' GuideLaCroix Precision OpticsOptics that Defend, Build, Cure and Discover The LaCroix name is synonymous with quality precision optics. Since 1947, three generations of family leadership have placed LaCroix Precision Optics...Photonics Buyers' GuideOhara Corporation, Western OfficeOhara manufactures precision optical glasses: strip/slab, cut/molded blanks, pressings, high homogeneity blanks, fine gobs, polished ball lenses, near-UV transmitting i-Line glass, ceramic...