This article is cited in 2 papers

Resonant bolometric detection of broadband terahertz signals

A. V. Bogatskaya^ab, N. V. Klenov^acd, P. M. Nikiforova^ad, A. M. Popov^ab, A. E. Shchegolev<sup>cd

a</sup> Faculty of Physics, Lomonosov Moscow State University
^b P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow
^c Moscow Technical University of Communications and Informatics
^d Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics

Abstract: Bolometric detection of broadband terahertz radiation using a heterostructure consisting of a sequence of conducting and dielectric layers of a doped and undoped semiconductor (gallium arsenide, germanium) is discussed. This structure comprises a photonic crystal with allowed and forbidden (absorption and transmission) bands. By choosing the thicknesses of the conducting and nonconducting layers and the doping levels, it is possible to form spectral intervals of effective absorption, which allows one to detect pulses in the range of frequencies of $\ge$ 10$^{12}$ Hz with a spectral width on the order of the carrier frequency.

Keywords: detector, bolometer, terahertz radiation, resonance.

Received: 29.04.2021
Revised: 31.05.2021
Accepted: 01.06.2021

DOI: 10.21883/PJTF.2021.17.51388.18850

 English version: Technical Physics Letters, 2021, 47:11, 838–842

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