V. V. Rumyantsev, K. V. Marem'yanin, A. P. Fokin, A. A. Dubinov, A. A. Razova, N. N. Mikhailov, S. A. Dvoretskii, M. Yu. Glyavin, V. I. Gavrilenko, S. V. Morozov, “Generation of terahertz radiation in InP : Fe crystals due to second-order lattice nonlinearity”, Fizika i Tekhnika Poluprovodnikov, 2021, Volume 55, Issue 9,Pages <nobr>813

XXV International Symposium "Nanophysics and Nanoelectronics", Nizhny Novgorod, March 9-12, 2021

Generation of terahertz radiation in InP : Fe crystals due to second-order lattice nonlinearity

V. V. Rumyantsev^a, K. V. Marem'yanin^a, A. P. Fokin^b, A. A. Dubinov^a, A. A. Razova^a, N. N. Mikhailov^c, S. A. Dvoretskii^c, M. Yu. Glyavin^b, V. I. Gavrilenko^a, S. V. Morozov^a

^a Institute for Physics of Microstructures, Russian Academy of Sciences, Nizhnii Novgorod
^b Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod
^c Rzhanov Institute of Semiconductor Physics, Siberian Branch of Russian Academy of Sciences, Novosibirsk

Abstract: In this paper, we experimentally demonstrate the generation of the second harmonic radiation of the gyrotron with an operating frequency of 263 GHz due to the second order lattice nonlinearity in indium phosphide crystals doped with ferrum. It is shown that the second harmonic radiation can be used for magnetospectroscopy of semiconductor nanostructures. We discuss the possibility of generating a difference frequency in these crystals when excited by two sources of the mid-IR range with a close wavelength.

Keywords: nonlinear frequency transformations, terahertz radiation, indium phosphide, second order nonlinearity.

Received: 12.04.2021
Revised: 19.04.2021
Accepted: 19.04.2021

DOI: 10.21883/FTP.2021.09.51299.32