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Appl Opt. 1966 Nov 1;5(11):1745-8. doi: 10.1364/AO.5.001745.

Analytical description of a Fabry-Perot photoelectric spectrometer.

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  • 1Air Force Cambridge Research Laboratories,Bedford, Massachusetts 01730, USA.


An analytical expression for the response of a complete Fabry-Perot photoelectric spectrometer to a line profile is derived. The case of a doppler-broadened Lorentzian profile examined by a spectrometer comprised of an etalon of variable thickness and reflectivity, with surface defects consisting of spherical curvature, as well as microscopic flatness imperfections, a finite exploring slit in front of the photodetector, and bandwidth limiting circuits is considered. Some of the properties and uses of the expression obtained are discussed.

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