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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Franco Gori
  • Vol. 28, Iss. 9 — Sep. 1, 2011
  • pp: 1805–1811

Beam-splitter effects in dual-input Fourier transform spectroscopy

Locke D. Spencer, David A. Naylor, Peter A.R. Ade, and Jin Zhang  »View Author Affiliations


JOSA A, Vol. 28, Issue 9, pp. 1805-1811 (2011)
http://dx.doi.org/10.1364/JOSAA.28.001805


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Abstract

In general, a dual-input Fourier transform spectrometer (FTS) produces interferograms that have components of both even and odd symmetry. In addition to the desired interferogram contribution due to the source under study, which has even symmetry, each FTS output is often found to exhibit a component of odd symmetry that arises from the fact that the beam splitter is not ideal. Additionally, the beam splitter itself can be a source of emission that produces a modulated signal component at the output of the interferometer. An exploration of the effects, and correction, of nonideal beam-splitter characteristics in FTS interferograms is presented, including examples from the Herschel/SPIRE submillimeter wavelength imaging FTS.

© 2011 Optical Society of America

OCIS Codes
(230.1360) Optical devices : Beam splitters
(300.6270) Spectroscopy : Spectroscopy, far infrared
(300.6300) Spectroscopy : Spectroscopy, Fourier transforms

ToC Category:
Spectroscopy

History
Original Manuscript: May 25, 2011
Revised Manuscript: July 8, 2011
Manuscript Accepted: July 12, 2011
Published: August 2, 2011

Citation
Locke D. Spencer, David A. Naylor, Peter A. R. Ade, and Jin Zhang, "Beam-splitter effects in dual-input Fourier transform spectroscopy," J. Opt. Soc. Am. A 28, 1805-1811 (2011)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-28-9-1805

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