Резонансное болометрическое детектирование широкополосных сигналов терагерцевого диапазона частот
2021 ◽
Vol 47
(17)
◽
pp. 50
Keyword(s):
We discuss the detection of broadband radiation in the terahertz frequency range by a bolometric method using heterostructures consisting of a sequence of conducting and dielectric layers of doped and undoped semiconductors (gallium arsenide, germanium). This structure forms a photonic crystal with allowed and forbidden bands (absorption and transmission ranges). By selecting the thicknesses of the conductive and non-conductive layers and the doping levels, it is possible to form spectral intervals of effective absorption, which allows detecting pulses in the frequency range >10^12 Hz with a spectral width of the order of the carrier frequency.
2014 ◽
Vol 541
◽
pp. 012058
◽
Keyword(s):
2015 ◽
Vol 74
(19)
◽
pp. 1767-1776
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2017 ◽
Vol 76
(10)
◽
pp. 929-940
◽
Keyword(s):
Keyword(s):