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Optical Properties and Terahertz Radiation Generation in a LI2B4O7 Crystal

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Russian Physics Journal Aims and scope

Spectral dependences of components of the refractive index and absorption coefficient in a Li2B4O7 (LB4) nonlinear crystal are determined in the THz range for the first time. Measurements have been carried out in the 0.15–1.6 THz (180–2000 μm) spectral range. The measured refractive index components are approximated by the Sellmeier dispersion equations subsequently used to determine the possible interaction types and to calculate the phase-matching angles for THz wave generation at the difference frequency between a Nd:YAG laser and a tunable laser source with a close wavelength. The efficiency of the process is estimated.

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Authors and Affiliations

  1. Institute of Automation and Electrometry of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia

    N. A. Nikolaev & A. A. Mamrashev

  2. Institute for Monitoring Climatic and Ecological Systems of the Siberian Branch of the Russian Academy of Sciences, Tomsk, Russia

    Yu. M. Andreev & G. V. Lanskii

  3. National Research Tomsk State University, Tomsk, Russia

    Yu. M. Andreev, D. M. Ezhov & G. V. Lanskii

  4. Institute of High Current Electronics of the Siberian Branch of the Russian Academy of Sciences, Tomsk, Russia

    D. M. Lubenko

  5. P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow, Russia

    I. O. Kinyaevskii

  6. V. S. Sobolev Institute of Geology and Mineralogy of the Siberian Branсh of the Russian Academy of Sciences, Novosibirsk, Russia

    V. P. Solntsev

Authors
  1. N. A. Nikolaev
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  2. A. A. Mamrashev
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  3. Yu. M. Andreev
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  4. D. M. Ezhov
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  5. G. V. Lanskii
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  6. D. M. Lubenko
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  7. I. O. Kinyaevskii
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  8. V. P. Solntsev
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Corresponding author

Correspondence to N. A. Nikolaev.

Additional information

Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 12, pp. 21–24, December, 2020.

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Nikolaev, N.A., Mamrashev, A.A., Andreev, Y.M. et al. Optical Properties and Terahertz Radiation Generation in a LI2B4O7 Crystal. Russ Phys J 63, 2066–2069 (2021). https://doi.org/10.1007/s11182-021-02275-9

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  • DOI: https://doi.org/10.1007/s11182-021-02275-9

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