Non-collinear upconversion of infrared light | Zendy

Christian Pedersen | Zendy; Qi Hu | Zendy; Lasse Høgstedt | Zendy; Peter TidemandLichtenberg | Zendy; Jeppe Seidelin Dam | Zendy

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Non-collinear upconversion of infrared light

Author(s) -

Christian Pedersen,

Qi Hu,

Lasse Høgstedt,

Peter TidemandLichtenberg,

Jeppe Seidelin Dam

Publication year - 2014

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.22.028027

Subject(s) - photon upconversion , hyperspectral imaging , optics , infrared , physics , nonlinear optics , spectroscopy , spectral imaging , materials science , optoelectronics , remote sensing , laser , quantum mechanics , geology

Two dimensional mid-infrared upconversion imaging provides unique spectral and spatial information showing good potential for mid-infrared spectroscopy and hyperspectral imaging. However, to extract spectral or spatial information from the upconverted images an elaborate model is needed, which includes non-collinear interaction. We derive here a general theory providing the far field of the upconverted light when two arbitrary fields interact inside a nonlinear crystal. Theoretical predictions are experimentally verified for incoherent radiation and subsequently applied to previously published data with good agreement.

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