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Proceedings Paper

Spectral performance of multilayer filters at cryogenic temperature
Author(s): Weiting Feng; Yixun Yan
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Paper Abstract

Experimental results on mild lead telluride (PbTe) material and vacuum-deposited multilayers are reported. Optical absorption of mild lead telluride is determined by envelope methods and found to be different from that of stoichiometric lead telluride on cooling. Generally, the performance of multilayer coatings which are composed of mild PbTe/ZnSe is deteriorated in middle infrared band when temperature decreases. The wavelength shift of a multilayer filter is essentially a linear function of filter temperature.

Paper Details

Date Published: 21 January 1993
PDF: 5 pages
Proc. SPIE 1765, Cryogenic Optical Systems and Instruments V, (21 January 1993); doi: 10.1117/12.140880
Show Author Affiliations
Weiting Feng, Shanghai Institute of Mechanical Engineering (China)
Yixun Yan, Shanghai Institute of Technical Physics (China)

Published in SPIE Proceedings Vol. 1765:
Cryogenic Optical Systems and Instruments V
Ramsey K. Melugin, Editor(s)

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