A. S. Nikoghosyan ; R. M. Martirosyan ; Hakhoumian, A. A. ; A. H. Makaryan ; V. R. Tadevosyan ; G. N. Goltsman ; S. V. Antipov
Armenian Journal of Physics=Ֆիզիկայի հայկական հանդես
Yerevan State University (YSU) ; Moscow State Pedagogical University, Moscow, 119571, Russia
The effect of THz radiation absorption on the efficiency of generation of coherent THz radiation in a nonlinear optical crystal placed into a metal rectangular waveguide is studied. The efficiency of the nonlinear conversion of optical laser radiation to the THz band is also a function of the phase-matching (PM) condition inside the nonlinear crystal. The method of partial filling of a metal waveguide with a nonlinear optical crystal is used to ensure phase matching. Phase matching was obtained by the proper choice of the thickness of the nonlinear crystal, namely the degree of partial filling of the waveguide. We have studied the THz radiation attenuation caused by the losses in both the metal walls of the waveguide and in the crystal, taking into account the dimension of the cross section of the waveguide, the degree of partial filling and its dielectric constant.
oai:arar.sci.am:23521
ՀՀ ԳԱԱ Հիմնարար գիտական գրադարան
Dec 13, 2023
Feb 27, 2020
44
https://arar.sci.am/publication/26289
Հրատարակութեան անունը | Թուական |
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Effect of Absorption on The Efficiency of THz Radiation Generation in a Nonlinear Crystal Placed Into a Waveguide | Dec 13, 2023 |
A. S. Nikoghosyan R. M. Martirosyan Hakhoumian, A. A.
Yu. H. Avetisyan A. H. Makaryan K. Khachatryan A. Hakhoumian
T. S. Yezekyan A. H. Makaryan V. R. Tadevosyan
Hakhoumian, A. A. A. H. Makaryan N. G. Poghosyan T. V. Zakaryan Institute of Radiophysics and Electronics of NAS RA, Armenia Yerevan State University
Hakhoumian, A. A. E. R. Sivolenko
G. Gulakyan A. H. Makaryan R. Miroyan