Non-collinear upconversion of infrared light.

نویسندگان

  • Christian Pedersen
  • Qi Hu
  • Lasse Høgstedt
  • Peter Tidemand-Lichtenberg
  • Jeppe Seidelin Dam
چکیده

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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عنوان ژورنال:
  • Optics express

دوره 22 23  شماره 

صفحات  -

تاریخ انتشار 2014