Abstract
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 mu m 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. (C) 2015 Optical Society of America
Original language | English |
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Journal | Optics Letters |
Volume | 40 |
Issue number | 6 |
Pages (from-to) | 938-941 |
ISSN | 0146-9592 |
DOIs | |
Publication status | Published - 2015 |