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Optical Engineering

Long-wave infrared spectral imager with an 8-cm–1 passband acousto-optic tunable filter
Author(s): Dennis R. Suhre; Neelam Gupta; Milton S. Gottlieb
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Paper Abstract

A Tl3AsSe3 (TAS) acousto-optic tunable filter (AOTF) hyperspectral imaging system is designed and demonstrated that enables real-time imaging of ambient temperature scenes at wavelengths around 10 µm. The predicted sensitivity improvement is a factor of 46 compared to previous TAS AOTF systems, and is accomplished by increasing the spectral passband, improving the AOTF diffraction efficiency, and using a higher sensitivity camera. Optical system designs are also developed and tested for reducing AOTF aberrations and producing pixel-limited resolution.

Paper Details

PDF: 7 pages
Opt. Eng. 44(9) 094601 doi: 10.1117/1.204875
Published in: Optical Engineering Volume 44, Issue 9, September 2005
Show Author Affiliations
Dennis R. Suhre, Carnegie Mellon Univ. (United States)
Neelam Gupta, Army Research Lab. (United States)
Milton S. Gottlieb, Carnegie Mellon Univ. (United States)

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