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1 December 1990 Spatial heterodyne spectroscopy: interferometric performance at any wavelength without scanning
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Proceedings Volume 1318, Optical Spectroscopic Instrumentation and Techniques for the 1990s: Applications in Astronomy, Chemistry, and Physics; (1990) https://doi.org/10.1117/12.22119
Event: Optical Spectroscopic Instrumentation and Techniques for the 1990s: Applications in Astronomy, Chemistry, and Physics, 1990, Las Cruces, NM, United States
Abstract
Spatial heterodyne spectroscopy (SHS) employing a two-beam dispersive interferometer producing a Fizeau fringe pattern having wavelength-dependent spatial frequencies is presented. The pattern is recorded on an imaging detector and Fourier transformed to recover the input stream. It is pointed out that spectrometers operating on the SHS principle can achieve the theoretical resolution limit of the gratings without scanning, retaining at the same time the large angular input tolerance and multiplexing properties of conventional scanning Fourier-transform spectrometers. Additionally, broad spectral coverages can be achieved, and field widening can be accomplished without moving parts.
© (1990) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Fred L. Roesler and John M. Harlander "Spatial heterodyne spectroscopy: interferometric performance at any wavelength without scanning", Proc. SPIE 1318, Optical Spectroscopic Instrumentation and Techniques for the 1990s: Applications in Astronomy, Chemistry, and Physics, (1 December 1990); https://doi.org/10.1117/12.22119
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