Investigation of mid-IR picosecond image upconversion

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Imaging and spectroscopy in the mid-infrared (Mid-IR) wavelength region have received considerable attention in recent years. The reason is the high Mid-IR spectral specificity of many gases and complex molecules. In this pilot study we focus on picosecond upconversion imaging exploiting the χ(2) nonlinearity of a bulk lithium niobate crystal as a means to convert the optical Mid-IR signal into the visible wavelength region, thus allowing the use of fast and sensitive silicon based CCD cameras. The picosecond upconversion system is synchronously pumped in order to increase the quantum efficiency, hence allowing for upconversion of faint pulsed Mid-IR light.
Original languageEnglish
Title of host publicationProceedings of SPIE
Number of pages7
PublisherSPIE - International Society for Optical Engineering
Publication date2017
Article number100880L
Publication statusPublished - 2017
EventNonlinear Frequency Generation and Conversion 2017: Materials and Devices XVII - The Moscone Center, San Francisco, United States
Duration: 27 Jan 20171 Feb 2017


ConferenceNonlinear Frequency Generation and Conversion 2017
LocationThe Moscone Center
CountryUnited States
CitySan Francisco
SeriesProceedings of S P I E - International Society for Optical Engineering

Bibliographical note

Copyright 2017 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.


  • Nonlinear wave mixing
  • Infrared imaging
  • Upconversion
  • Pulsed laser


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