Long-wave infrared spectral imager with an 8-cm-1 passband acousto-optic tunable filter -: art. no. 094601

被引：27
作者：
Gupta, N
Suhre, DR
Gottlieb, M
机构：
[1] US Army Res Lab, Adelphi, MD 20783 USA
[2] Carnegie Mellon Univ, Pittsburgh, PA 15219 USA
来源：
OPTICAL ENGINEERING | 2005年 / 44卷 / 09期
关键词：
acousto-optics; filtering; imaging; infrared; spectroscopy;
D O I：
10.1117/1.2048755
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
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 mu m. 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. (c) 2005 Society of Photo-optical Instrumentation Engineers.
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页数：7
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