Request InfoOptiGrate Corp.ORLANDO, Fla., Oct. 1, 2010 — OptiGrate Corp. has launched BragGrate, a line of ultranarrow notch and bandpass filters for Raman spectroscopy applications. The filters have a bandwidth of <10 cm-1, which the company says is about 10 times narrower than other notch and bandpass filters commercially available for these applications. The filters enable measurements of ultralow frequency Raman bands with standard instruments, rather than with the previous complex, bulky and more expensive tools. Applications include nanotechnology, pharmacology and semiconductor processing. Stokes and anti-Stokes frequencies...See full productRelated content from Photonics MediaPRODUCTSBioPhotonics 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. 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A typical optical delay line consists of a retroreflector or folding mirrors on...Photonics HandbookFlat Optics: Considerations When BuyingFlat optics generally perform three main functions: They transmit light (windows), reflect light (mirrors), and fold light (prisms). While most optical manufacturers make spherical and flat optics, a...Photonics HandbookLens Aberrations: Avoiding Defects in ImageryA lens collects light from a point on an object and focuses it to a corresponding conjugate point on an image. Under most conditions, the lens fails at this task because of some error in the...Photonics HandbookUltraviolet Filters: Past and PresentIn their earliest forms, UV bandpass filters that were optimized for wavelengths less than 400 nm, such as the Schott UG or the Hoya U-series, were constructed of absorbing compounds in glass. 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This white paper...Photonics.com 4/27/2022How the Neo Spectroradiometer Drastically Improves Filter QualityAdmesy develops spectroradiometers, colorimeters, and light meters. They are used in large volume 24/7 production testing as well as in smaller volume niche system manufacturing. One application...WEBINARSPhotonics.com 1/20/2021Multiband and Multizone Filters and Their ApplicationsOptical filters are used to provide wavelength selectivity to photonics applications, typically transmitting specific wavelength bands to the desired destination (detector or receiver) and reflecting...Photonics.com 6/24/2013Raman Spectroscopy for Research and IndustryFREE WEBINAR Additional Questions and Answers from the Webinar are below: Speakers to include: David J. 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Jörg Neukum describes a series...PHOTONICS DICTIONARY+ TERMSPhotonics Dictionarynotch filterAlso referred to as a band-stop or band rejection filter; a notch filter is a filter that is designed to screen out a very narrow band of radiation by transmitting most wavelengths with little...Photonics Dictionaryoptical filterAn optical filter is a device that selectively transmits or blocks specific wavelengths, or colors, of light. Optical filters are used to control the spectral content of light in various...Photonics Dictionarylong-pass filterA long-pass filter is an optical filter that allows longer wavelengths of light to pass through while blocking or attenuating shorter wavelengths. These filters are designed to transmit light with a...Photonics Dictionaryphase maskIn optics and photolithography, a phase mask refers to a device that modifies the phase of light waves passing through it. 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Facility TourTour of our Fitchburg, MA manufacturing facility.PHOTONICS BUYERS' GUIDE CATEGORIESHolographic FiltersDetector/Filter CombinationsUltranarrow Spectral FiltersPhase MasksIn optics and photolithography, a phase mask refers to a device that modifies the phase of light waves passing through it. The phase mask is used to control the spatial distribution of the light's...COMPANIESPhotonics 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,...Photonics Buyers' GuideOmega Optical LLCOmega Optical has been bringing you the light you need since 1969. Omega specializes in thin-film interference filters in the 190 nm - 10 µm wavelength range. The layers are...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' GuideDeposition Sciences Inc. (DSI)World Leader in High Performance, Durable Optical Thin-Film Coatings Deposition Sciences, Inc. (DSI®) produces a wide variety of highly reliable, durable, and heat-resistant optical...