Model studies of THz-range generation via down conversion of the radiation of Ti:Sapphire lasers in LBO crystals

  • D. M. Lubenko
  • V. F. Losev
  • Yu. M. Andreev
  • G. V. Lanskii
Proceedings of the XV International Conference “Luminescence and Laser Physics” (LLP-2016)


Results from model studies of the possibility of creating a source of high-power picosecond pulses of terahertz radiation via optical rectification and phase-matched down conversion of femtosecond pulses of Ti:Sapphire lasers in a nonlinear LBO crystal are presented. Modified Sellmeier equations are used in calculations. It is shown that the lengths of coherence for the generation of THz radiation at frequencies higher than 0.5 THz are more than 0.5 mm, allowing the technologically simple production of periodic structures. The maximum length of coherence is achieved for ss type interactions in the XY plane. Phase-matched sf type down conversion is possible only in the XY plane, including noncritical spectral matching conditions. Maximum efficiency can be expected for three-wave interactions with the polarization of interacting waves parallel to Z axis.


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Copyright information

© Allerton Press, Inc. 2017

Authors and Affiliations

  • D. M. Lubenko
    • 1
    • 2
  • V. F. Losev
    • 1
    • 4
  • Yu. M. Andreev
    • 2
    • 3
  • G. V. Lanskii
    • 2
    • 3
  1. 1.Institute of High Current Electronics, Siberian BranchRussian Academy of SciencesTomskRussia
  2. 2.National Research Tomsk State UniversityTomskRussia
  3. 3.Institute for the Monitoring of Climatic and Ecological Systems, Siberian BranchRussian Academy of SciencesTomskRussia
  4. 4.National Research Tomsk Polytechnic UniversityTomskRussia

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