Cryocooled Optics And Contamination

J. G. Pipes; B. E. Wood; W. L. Clark; F. E. Sherrell

doi:10.1117/12.7972443

1 December 1979 Cryocooled Optics And Contamination

J. G. Pipes, B. E. Wood, W. L. Clark, F. E. Sherrell

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Optical Engineering, Vol. 18, Issue 6, 186620 (December 1979). https://doi.org/10.1117/12.7972443

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.

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J. G. Pipes, B. E. Wood, W. L. Clark, and F. E. Sherrell "Cryocooled Optics And Contamination," Optical Engineering 18(6), 186620 (1 December 1979). https://doi.org/10.1117/12.7972443

Published: 1 December 1979

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