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Optical Engineering

Cryocooled Optics And Contamination
Author(s): J. G. Pipes; B. E. Wood; W. L. Clark; F. E. Sherrell
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Paper Abstract

This paper is a survey of several cryogenic effects on optical components and the problems associated with operation of optical systems at cryogenic temperatures. These potential problem areas evolved, in most cases, from operational difficulties in large cryogenically cooled space test chambers and were studied experimentally in smaller research laboratory chambers. The specific areas discussed are the temperature sensitivity of the complex refractive index, the usage of polystyrene as a wavelength calibrator at 20 K, the transmittance and reflectance changes with temperature, the infrared spectra of typical condensed gases on a cryogenic window, and the use and calibration of blackbodies at temperatures below 400 K.

Paper Details

Date Published: 1 December 1979
PDF: 6 pages
Opt. Eng. 18(6) 186620 doi: 10.1117/12.7972443
Published in: Optical Engineering Volume 18, Issue 6
Show Author Affiliations
J. G. Pipes, ARO, Inc. (United States)
B. E. Wood, ARO, Inc. (United States)
W. L. Clark, ARO, Inc. (United States)
F. E. Sherrell, ARO, Inc. (United States)

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