Infrared upconversion hyperspectral imaging

In this Letter, hyperspectral imaging in the mid-IR spectral region is demonstrated based on nonlinear frequency upconversion and subsequent imaging using a standard Si-based CCD camera. A series of upconverted images are acquired with different phase match conditions for the nonlinear frequency con...

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Bibliographic Details
Published inOptics letters Vol. 40; no. 6; p. 938
Main Authors Kehlet, Louis Martinus, Tidemand-Lichtenberg, Peter, Dam, Jeppe Seidelin, Pedersen, Christian
Format Journal Article
LanguageEnglish
Published United States 15.03.2015
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Summary:In this Letter, hyperspectral imaging in the mid-IR spectral region is demonstrated based on nonlinear frequency upconversion and subsequent imaging using a standard Si-based CCD camera. A series of upconverted images are acquired with different phase match conditions for the nonlinear frequency conversion process. From this, a sequence of monochromatic images in the 3.2-3.4 μm range is generated. The imaged object consists of a standard United States Air Force resolution target combined with a polystyrene film, resulting in the presence of both spatial and spectral information in the infrared image.
ISSN:1539-4794
DOI:10.1364/OL.40.000938