Background suppression and spectral detection using double-beam interferometry - Measurements

Details Background suppression and spectral detection using double-beam interferometry - Measurements Background suppression and spectral detection using double-beam interferometry - Measurements

Jan 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979spie..191...71z&link_type=abstract

In: Multiplex and/or high-throughput spectroscopy; Proceedings of the Seminar, San Diego, Calif., August 27, 28, 1979. (A80-4282

Physics

Interferometry, Light Beams, Modulation Transfer Function, Molecular Spectroscopy, Noise Reduction, Spatial Filtering, Ammonia, Gas Spectroscopy, Signal To Noise Ratios, Spectral Resolution, Water Vapor

Scientific paper

A series of laboratory measurements made with a double-beam interferometer having tailored modulation transfer functions is presented. These measurements demonstrate the capability of this instrument to detect faint point sources in the presence of a structured background on the basis of spatial frequency differences and/or spectral differences between the source and the background. Measurements are presented which indicate that this detection process can be carried out at a level of spectral resolution of 1/cm or better.

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