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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

Date Published: 1 September 2005
PDF: 7 pages
Opt. Eng. 44(9) 094601 doi: 10.1117/1.2048755
Published in: Optical Engineering Volume 44, Issue 9
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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