A historical view of germanium as an infrared window material

Roger M. Sullivan

doi:10.1117/12.819812

27 April 2009 A historical view of germanium as an infrared window material

Roger M. Sullivan

Proceedings Volume 7302, Window and Dome Technologies and Materials XI; 73020L (2009) https://doi.org/10.1117/12.819812
Event: SPIE Defense, Security, and Sensing, 2009, Orlando, Florida, United States

Abstract

The story of germanium's development as an infrared dome and window material exemplifies the manner in which the complementary efforts of industry, academia and government can work together to solve scientific and technical challenges. Germanium is one of a few materials which have been used for infrared transparent windows in both the long-wave 8-12 micron region, as well as the mid-wave 3-5 micron region. Due to its legacy as one of the first commercial semiconductors, germanium became available in high purity as a bulk commodity. This paper will examine the history of how germanium came to be used as an infrared window and what enabling technologies have supported its use.

Citation Download Citation

Roger M. Sullivan "A historical view of germanium as an infrared window material", Proc. SPIE 7302, Window and Dome Technologies and Materials XI, 73020L (27 April 2009); https://doi.org/10.1117/12.819812

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