Abstract

Thermal emission from beam splitters in Fourier transform infrared spectrometers causes spectral amplitudes that are in quadrature to those of radiation from the field of view or from the detector port. Beam-splitter emission is described as a superposition of radiation of electromagnetic dipoles with angular polarization correlation taken into account for the real refractive index. Surface emission shows characteristic differences compared with volume emission. Numerical data are given for experimental conditions adapted to those of the airborne limb sounder MIPAS-FT.

© 2000 Optical Society of America

Response of Fourier-transform spectrometers to absorption and emission in a homogeneous single-layered beam splitter

Frank Hase, Olaf Trieschmann, and Christian Weddigen
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Absorbing beam splitter in a Michelson interferometer

J. J. Monzón and L. L. Sánchez-Soto
Appl. Opt. 34(34) 7834-7839 (1995)

Beam splitter layer emission in Fourier-transform infrared interferometers

Jean-Marc Thériault
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Effect of beam-splitter emission in Fourier-transform emission spectroscopy

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Appl. Opt. 38(36) 7475-7480 (1999)

Optimized spectral microwindows for data analysis of the Michelson Interferometer for Passive Atmospheric Sounding on the Environmental Satellite

Georg Echle, Thomas von Clarmann, Anu Dudhia, Jean-Marie Flaud, Bernd Funke, Norbert Glatthor, Brian Kerridge, Manuel López-Puertas, Francisco J. Martín-Torres, and Gabriele P. Stiller
Appl. Opt. 39(30) 5531-5540 (2000)