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Photonics Buyers' Guide
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A replica grating is a reproduction made of an original grating -- usually by casting thermosetting plastics onto the original -- to avoid the high expense of making the original gratings.
Spectrogon US, Inc., Sub. of Spectrogon AB - Mountain Lakes, NJ
Designer and manufacturer of interference filters: narrow and broad bandpass, long wave and short wave, ND filters, atmospheric windows, AR and metallic coatings. Holographic diffraction gratings: plano, concave and blazed, pulse compression/stretcher gratings. WDM and telecommunication...
Hellma USA, Inc., Sub. of Hellma GmbH & Co. KG - Plainview, NY
Manufactures and supplies Hellma cells, fiber optic probes, photometric calibration standards, flat and cylindrical optics and accessories for lasers, spectrophotometers and fluorometers. Supplies Heraeus light sources including vacuum UV, deuterium, hollow cathode, PID spectral calibration and...
Optometrics Corporation, A Dynasil Co. - Littleton, MA
Optometrics is an ISO 9001:2008 certified, lean optical components and optical subassembly manufacturing company committed to supplying its customers with high quality, cost competitive products and services. Operating out of a modern engineering and...
OPCO Laboratory, Inc. - Fitchburg, MA
Full service manufacturer of high precision custom optics, optical replication, diffraction gratings, electro-optical assemblies, metallic and dielectric thin-film coatings for prototype and high volume production. State-of-the-art manufacturing, coating, QC, assembly and class 1000 cleanrooms,...
Bach Research Corp. - Boulder, CO
Holographix LLC - Hudson, MA
New Light Industries, Ltd. - Spokane, WA
Richardson Gratings, Bus. Unit of Newport Corp. - Rochester, NY
Shimadzu Corp. - Tokyo, Japan
Spectrogon AB - Taby, Sweden
Spectrogon UK Ltd., Sub. of Spectrogon AB - Glenrothes, Scotland
Wabash Instrument Corp. - Wabash, IN
A reproduction made of an original grating -- usually by casting thermosetting plastics onto the original -- to avoid the high expense of making the original gratings.
A chemical substance rendered insoluble by exposure to light. By means of a photoresist, a selected pattern can be imaged on a metal. The unexposed areas are washed away and are ready for etching by acid or doping to make a microcircuit.
The optical recording of the object wave formed by the resulting interference pattern of two mutually coherent component light beams. In the holographic process, a coherent beam first is split into two component beams, one of which irradiates the...
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