Principles of creation of a tunable terahertz laser with lasing at a difference frequency in a nonlinear ZnGeP2 optical crystal

Gribenyukov, A.I., Dyomin, V.V., Polovtsev, I.G., Yudin, N.N.

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For Russian citation (Opticheskii Zhurnal):

Грибенюков А.И., Дёмин В.В., Половцев И.Г., Юдин Н.Н. Принципы создания перестраиваемого терагерцового лазера с генерацией излучения на разностной частоте в нелинейно-оптическом кристалле ZnGeP2 // Оптический журнал. 2018. Т. 85. № 6. С. 12–16. http://doi.org/10.17586/1023-5086-2018-85-06-12-16

Gribenyukov A.I., Dyomin V.V., Polovtsev I.G., Yudin N.N. Principles of creation of a tunable terahertz laser with lasing at a difference frequency in a nonlinear ZnGeP2 optical crystal [in Russian] // Opticheskii Zhurnal. 2018. V. 85. № 6. P. 12–16. http://doi.org/10.17586/1023-5086-2018-85-06-12-16

For citation (Journal of Optical Technology):

A. I. Gribenyukov, V. V. Demin, I. G. Polovtsev, and N. N. Yudin, "Principles of creation of a tunable terahertz laser with lasing at a difference frequency in a nonlinear ZnGeP₂ optical crystal," Journal of Optical Technology. 85(6), 322-325 (2018). https://doi.org/10.1364/JOT.85.000322

Abstract:

An optical system for conversion of mid-infrared laser radiation into terahertz radiation is proposed. The proposed system uses lasing with a wavelength of 2 μm in a holmium:yttrium–aluminum–garnet (Ho:YAG) laser in the first stage of the system, conversion of the Ho:YAG laser radiation in two parametric light sources based on ZnGeP₂ single-crystals with fixed and tunable wavelengths in the range of 3–4.5 μm in the second stage, and conversion of the radiation of these two parametric sources in the 3–4.5-μm region into the terahertz range by generating difference-frequency radiation in the nonlinear ZnGeP₂ optical crystal in the third stage. We estimate the characteristics of the output terahertz radiation.

Keywords:

nonlinear parametric frequency conversion, terahertz range, difference-frequency generator

Acknowledgements:

The research was supported by the Ministry of Education and Science of the Russian Federation (Minobrnauka) (state assignment, project No. 8.2712.2017/4.6).

OCIS codes: 190.4223

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