Spectral performance of multilayer filters at cryogenic temperature

Weiting Feng; Yixun Yan

doi:10.1117/12.140880

21 January 1993 Spectral performance of multilayer filters at cryogenic temperature

Weiting Feng, Yixun Yan

Proceedings Volume 1765, Cryogenic Optical Systems and Instruments V; (1993) https://doi.org/10.1117/12.140880
Event: San Diego '92, 1992, San Diego, CA, United States

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.

Citation Download Citation

Weiting Feng and Yixun Yan "Spectral performance of multilayer filters at cryogenic temperature", Proc. SPIE 1765, Cryogenic Optical Systems and Instruments V, (21 January 1993); https://doi.org/10.1117/12.140880

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