Infrared upconversion hyperspectral imaging

Louis Martinus Kehlet, Peter Tidemand-Lichtenberg, Jeppe Seidelin Dam, Christian Pedersen

    Research output: Contribution to journalJournal articleResearchpeer-review

    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 languageEnglish
    JournalOptics Letters
    Volume40
    Issue number6
    Pages (from-to)938-941
    ISSN0146-9592
    DOIs
    Publication statusPublished - 2015

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