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Spatial Heterodyne Spectrometer Assembly Patented

Photonics Spectra
Oct 2009
Dr. Christoph R. Englert, a space scientist at the Naval Research Laboratory in Washington, has been awarded a patent by the US Patent and Trademark Office for his compression assembly design for spatial heterodyne spectrometer interferometer applications. The methods can be used for high-resolution space- and ground-based spectroscopy of diffuse sources, including atmospheric emissions or trace gas absorptions. The system is cost-efficient and robust, and it provides design flexibility with the option of various spacer materials.


GLOSSARY
interferometer
An instrument that employs the interference of lightwaves to measure the accuracy of optical surfaces; it can measure a length in terms of the length of a wave of light by using interference phenomena based on the wave characteristics of light. Interferometers are used extensively for testing optical elements during manufacture. Typical designs include the Michelson, Twyman-Green and Fizeau interferometers. The basic interferometer components are a light source, a beamsplitter, a reference...
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