Request InfoTerahertz Technologies Inc.The C-995 Phase-Locked Loop Optical Chopper provides crystal-controlled chopping rates of 4 Hz to 5 KHz using only one blade. The use of direct digital synthesis permits the rate to be set to a precision of 0.001 Hz and provides quartz crystal stability. Frequency settings may be made via front panel controls and its bidirectional RS-232 port. Additionally, it may be phase-locked to a user-supplied external clock. Both enclosed and open-style chopper heads are available.See full productRelated content from Photonics MediaPRODUCTSPhotonics Spectra June 2023 IssueAutomated Alignment SystemPhysik Instrumente’s air-bearing-based F-142 alignment engine is designed to be maintenance-free, wear-free, and particle generation-free, making it suitable for clean room applications. The...BioPhotonics May/Jun 2023 IssueBandpass FiltersThe ADVANTECH™ hard coat bandpass filters from Andover Corp. offer steep slopes, high light transmission, durability, and long life for demanding applications. The filters provide...Photonics.com 9/5/2022Ultrafast Laser MirrorsLow-group-delay-dispersion (GDD) Ultrafast Laser Mirrors from Knight Optical Ltd. are used for high-performing ultrafast laser applications. With a low GDD of <20 fs2, the devices are...Photonics Showcase May 2022 IssueDiamond-Turned Reverse AxiconsReynard Corp. produces and coats reverse axicons with 360° windows. We have internal diamond-turning capabilities with a focus on IR, exotic, and III-V crystal materials. Aspheric, spherical,...ARTICLESPhotonics.com 4/7/2023Ams OSRAM Wraps Digital Systems Business Divestiture: Week in Brief: 04/07/23Electro Optic Systems (EOS) secured a conditional contract to supply remote weapon systems (RWS) to Ukraine valued at up to $80 million. EOS’ Defence Systems business secured the contract with...Photonics.com 6/27/2022Nanoparticles, Light-Matter Interactions Spur Datacom DevelopmentsPhysicists at Australian National University (ANU) have developed translucent metasurfaces, described as slides, that produce two distinct images by manipulating the direction in which light travels...Photonics.com 11/15/2022SPIE announces finalists for 2023 Prism AwardsCutting-edge technologies and companies ranging from exciting and emerging startups to longtime industry stalwarts are among this year’s finalists for the SPIE Prism Awards. The 24 companies,...Photonics.com 8/23/2023GaN-Based LEDs Achieve High-Frequency Visible Light CommunicationsAs the large-scale, commercial use of 5G networks has grown, so has the need for broader bandwidth to accommodate high-speed communications. To meet the resource needs of the post-5G and 6G eras,...PHOTONICS HANDBOOK ARTICLESPhotonics HandbookOptical System Design: Keeping the Coatings in MindAn optical coating engineer is frequently confronted with a difficult specification for a coating. Often the difficulty in the specification results from the particular form of the optical system. If...Photonics HandbookDiffraction Gratings: Selection GuidelinesDiffraction gratings are optical components with a periodic structure that separate light into beams traveling in predictable directions based on their wavelength. The grating acts as the dispersive...Photonics HandbookIllumination Design and Analysis Software: A Vital Tool in the Designer’s KitIllumination design has developed rapidly to include not only automotive headlamps and street lamps, but also backlit displays, fluorescent panel lighting, light-emitting diode or laser sources, and...Photonics HandbookPlastic Optics: Specifying Injection-Molded Polymer OpticsThe use of precision polymer optics is becoming an increasing necessity today as products demand sophisticated light handling components to achieve desired results. Polymer optics can be thought of...WHITEPAPERSPhotonics.com 8/18/2023Principles of Lock-in DetectionExplore the world of lock-in amplifiers in this paper, vital for success in photonics labs. Grasp the details of detecting amplitude and phase amid widespread signal changes from pulsed lasers,...Photonics.com 8/1/2023Hand Cleaning of Small OpticsA great "How-to" for cleaning optics. A must have for ALL.Photonics.com 4/12/2024Laser Optics for Defense ApplicationsOPTOMAN offers high LIDT, environmentally stable laser optics featuring excellent spectral performance.Photonics.com 4/10/2023Perkins Precision FAQ'sQuestions on the advantages of IBS coatings, chemical bonding, surface roughness and dielectric coatings.WEBINARSPhotonics.com 2/14/2024Optical Interference Filters and Their Effects on Wavefront DistortionIn optical imaging systems, understanding the distortion of the optical wavefront due to optical components is critical. Often, only the distortion caused by the substrates and other insignificant...Photonics.com 11/15/2012Photonics in Space ApplicationsFREE WEBINAR Webinar Questions and Answers from Dr. Rubenchik: Dr. Alexander Rubenchik Lawrence Livermore National Laboratory, Livermore, Calif. The Promise of Pulsed Lasers in...Photonics.com 10/10/2018Protective Coatings Extend Optics LifetimesPlease download the above “associated file” for a pdf copy of this webinar. From military airborne applications to harsh industrial uses, optics can be subjected to considerable...Photonics.com 4/25/2023Optical Vortices and Their InteractionsSince the earliest theories and subsequent experiments, the study of optical vortices has delivered striking challenges to the way scientists traditionally think of light. Optical vortices are beams...PHOTONICS DICTIONARY+ TERMSPhotonics Dictionaryoptical chopperA mechanical or electrical-electromagnetic device for periodically interrupting or blocking abeam of light for a brief known interval. The three most common chopper types include the tuning fork...Photonics Dictionarytoric lensA lens having one or more toric surfaces. A toric surface is one having a maximum power in one meridian and a minimum power in a perpendicular meridian. In ophthalmic optics, toric lenses are used to...Photonics Dictionarygeometric opticsA field of physics that deals with light as if it truly were composed of rays diverging in various directions from the source and abruptly bent by refraction or turned by reflection into paths...Photonics Dictionaryphysiological opticsThe study of visual perception by the sense of sight.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 12/21/2022OPCO Laboratory, Inc. Facility TourTour of our Fitchburg, MA manufacturing facility.Photonics.com 8/13/2018LaCroix Precision OpticsTake a walk through our shop with LaCroix Precision Optics.Photonics.com 10/27/2022Zygo Management Re-Brand PodcastHear first-hand from our management team about the thought process behind Zygo's rebrand and how it went down.PHOTONICS BUYERS' GUIDE CATEGORIESOptical ChoppersAn optical chopper is a mechanical or electrical-electromagnetic device for passing and then interrupting a beam of light for a known brief interval. Examples include tuning forks, rotating shutters...Optical Add-Drop ModuleLaser Diode Collimating LensesSurface Quality Measuring EquipmentCOMPANIESPhotonics 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 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' 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' GuideShanghai Optics Inc.ISO 9001 & ISO 13485 certified and D&B DUNS # 113515303 Shanghai Optics is an unparalleled custom system solution provider offering advance precision custom optical design, engineering,...