XXVII International Symposium "Nanophysics and Nanoelectronics", Nizhny Novgorod, 13 - 16 March 2023

Terahertz radiation sources with an active region based on super-multiperiod AlGaAs/GaAs superlattices

A. S. Dashkov^ab, L. G. Gerchikov^ca, L. I. Goray^abde, N. A. Kostromin^cb, A. D. Bouravlev<sup>bed

a</sup> Alferov Federal State Budgetary Institution of Higher Education and Science Saint Petersburg National Research Academic University of the Russian Academy of Sciences, 194021 St. Petersburg, Russia
^b Saint Petersburg Electrotechnical University "LETI", 197022 St. Petersburg, Russia
^c Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, Russia
^d Institute for Analytical Instrumentation, Russian Academy of Sciences, 198095 St. Petersburg, Russia
^e University under the IPA EurAsEC, 199106 St. Petersburg, Russia

Abstract: In this article, several designs of the active region of the THz radiation source are considered, taking into account grown super-multiperiod AlGaAs/GaAs superlattices. For the proposed designs, the principal device characteristics are computed: energy band diagram, gain spectrum, and transport characteristics. Based on the calculation results, the authors proposed an optimal design of the active region of a tunable THz radiation source.

Keywords: super-multiperiod superlattice, light amplifiers, terahertz range, finite elements method, gain estimation.

Received: 05.05.2023
Revised: 29.06.2023
Accepted: 06.07.2023

DOI: 10.21883/FTP.2023.05.56197.17k

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