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Proceedings Paper

Measurement Of Infrared Multilayer Filters At Temperatures Down To 4 Deg K
Author(s): J. S. Seeley; R. Hunneman; A. Whatley; D. L. Stierwalt
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Paper Abstract

Measurement is reported at 4 deg K (and blocked transmittance below 10-5) of PbTe/ZnS thin-film filters deposited on Ge substrates. The reduced carrier-absorption which is obtained by cooling these PbTe films is found to accord with simple theory. Advantage for various high-performance multilayers by cooling is significant at the longer wavelengths, and has been verified.

Paper Details

Date Published: 29 April 1982
PDF: 4 pages
Proc. SPIE 0325, Optical Thin Films, (29 April 1982); doi: 10.1117/12.933303
Show Author Affiliations
J. S. Seeley, University of Reading (United Kingdom)
R. Hunneman, University of Reading (United Kingdom)
A. Whatley, University of Reading (United Kingdom)
D. L. Stierwalt, Naval Ocean Systems Center (United States)


Published in SPIE Proceedings Vol. 0325:
Optical Thin Films
Richard Ian Seddon, Editor(s)

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