Spatial heterodyne spectroscopy - Interferometric performance at any wavelength without scanningSpatial 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.
Document ID
19910066851
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Roesler, F. L. (Wisconsin Univ. Madison, WI, United States)
Harlander, J. (Wisconsin, University Madison, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1990
Subject Category
Instrumentation And Photography
Meeting Information
Meeting: Optical Spectroscopic Instrumentation and Techniques for the 1990s