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.

引用

页数：7