Midwave-infrared snapshot imaging spectrometer

We report results from a demonstration of a midwave-infrared, nonscanning, high-speed imaging spectrometer capable of simultaneously recording spatial and spectral data from a rapidly varying target scene. We demonstrated high-speed spectral imaging by collecting spectral and spatial snapshots of bl...

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Bibliographic Details
Published in:Applied optics (2004) 2001-09, Vol.40 (25), p.4501-4506
Main Authors: Volin, C E, Garcia, J P, Dereniak, E L, Descour, M R, Hamilton, T, McMillan, R
Format: Article
Language:English
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Summary:We report results from a demonstration of a midwave-infrared, nonscanning, high-speed imaging spectrometer capable of simultaneously recording spatial and spectral data from a rapidly varying target scene. We demonstrated high-speed spectral imaging by collecting spectral and spatial snapshots of blackbody targets and combustion products. The instrument is based on computed tomography concepts and operates in a midwave-infrared band of 3.0-5.0 mum. We record raw images at a frame rate of 60 frames/s, using a 512 x 512 InSb focal-plane array. Reconstructed object cube estimates were sampled at 46 x 46 x 21 (x, y, lambda) elements, or 0.1-mum spectral sampling. Reconstructions of several objects are presented.
ISSN:1559-128X
DOI:10.1364/AO.40.004501