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Proceedings Paper

Thermal properties of germanium and IR athermal optical design
Author(s): Steve Bloomberg
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Paper Abstract

Germanium is a material used widely in infra-red optics both in the 3 - 5 micrometers and 8 - 12 micrometers spectral regions. A useful property is its high refractive index, (> 4.0) which helps achieve low aberrations. However, it has several drawbacks, one of which is the relatively large dependence of the refractive index on temperature (dn/dT). This temperature dependence of the refractive index is discussed.

Paper Details

Date Published: 13 August 1993
PDF: 8 pages
Proc. SPIE 1971, 8th Meeting on Optical Engineering in Israel: Optical Engineering and Remote Sensing, (13 August 1993); doi: 10.1117/12.151010
Show Author Affiliations
Steve Bloomberg, Israel Aircraft Industries (Israel)


Published in SPIE Proceedings Vol. 1971:
8th Meeting on Optical Engineering in Israel: Optical Engineering and Remote Sensing

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