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Investigation of the Efficiency of Terahertz Radiation Generation in a Nonlinear Crystal Depending on the Parameters of Exciting Laser Beams

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Journal of Contemporary Physics (Armenian Academy of Sciences) Aims and scope

Abstract

The generation of the THz radiation in a nonlinear single-domain lithium niobate crystal is considered. The lasing efficiency is investigated as a function of the angle between the directions of propagation of the exciting laser beams at different beam radii and the THz radiation wavelength. The angular distribution of the generated radiation is investigated. It is shown that it is possible to obtain the highly directional THz radiation with the possibility of adjusting the directional pattern and spectral composition with an appropriate choice of the radii of the exciting beams, the angle between them, as well as the size and shape of the nonlinear crystal.

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Authors and Affiliations

  1. Yerevan State University, Yerevan, Armenia

    A. H. Makaryan & Y. S. Sahakyan

Authors
  1. A. H. Makaryan
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  2. Y. S. Sahakyan
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Correspondence to Y. S. Sahakyan.

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The authors declare no conflict of interest.

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Translated by V. Musakhanyan

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Makaryan, A.H., Sahakyan, Y.S. Investigation of the Efficiency of Terahertz Radiation Generation in a Nonlinear Crystal Depending on the Parameters of Exciting Laser Beams. J. Contemp. Phys. 56, 280–284 (2021). https://doi.org/10.3103/S1068337221030154

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  • DOI: https://doi.org/10.3103/S1068337221030154

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