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Optics and Spectroscopy, 2021, Volume 129, Issue 6, Pages 741–746
DOI: https://doi.org/10.21883/OS.2021.06.50985.4-21 (Mi os118) 		 
Proceedings of the international conference ''The XXIV Annual Conference Saratov Fall Meeting 2020''
Applied optics

Photoconductive THz detector based on new functional layers in multi-layer heterostructures

A. E. Yachmenevab, D. V. Lavrukhinab, R. A. Khabibullina, Yu. G. Goncharovb, I. E. Spektorb, K. I. Zaitsevb, V. A. Solov'evc, S. V. Ivanovc, D. S. Ponomarevab

a V. G. Mokerov Institute of Ultra High Frequency Semiconductor Electronics of RAS, Moscow
b Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow
c Ioffe Institute, St. Petersburg
Full-text PDF (644 kB)
DOI: https://doi.org/10.21883/OS.2021.06.50985.4-21
Abstract: Characteristics of photoconductive antennas (PCAs) based on InGaAs/InAs/InAlAs superlattice heterostructures exhibiting different types of elastic strain in the layers are compared experimentally. THz signals, noise characteristics, and signal-to-noise ratios of the PCA-detectors were compared by means of a laboratory pulsed time-domain THz spectrometer at different levels of average optical-probe power. A larger detection bandwidth in entire range of probe power is demonstrated experimentally for PCA-detectors based on superlattice heterostructures exhibiting both compressive and tensile strain compared to lattice-matched superlattice heterostructures. It can thus be stated that modification of properties of superlattice heterostructures by introducing strain in the crystal lattice represents a universal and relatively efficient method of improving characteristics of PCAs based on such heterostructures, which allows using these PCAs for development of THz spectroscopy and imaging systems.
Keywords: Terahertz science and technology, terahertz pulsed spectroscopy, TDS, terahertz element base, PCA, photoconductive antenna-detector, semiconductors, superlattice heterostructure, molecular-beam epitaxy, non-invasive medicine.
Funding agency Grant number
Russian Science Foundation 18-79-10195
This research was supported by Russian Science Foundation, project no. 18-79-10195.
Received: 31.12.2020
Revised: 01.02.2021
Accepted: 26.02.2021
English version:
Optics and Spectroscopy, 2021, Volume 129, Issue 8, Pages 851–856
DOI: https://doi.org/10.1134/S0030400X21060187
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: A. E. Yachmenev, D. V. Lavrukhin, R. A. Khabibullin, Yu. G. Goncharov, I. E. Spektor, K. I. Zaitsev, V. A. Solov'ev, S. V. Ivanov, D. S. Ponomarev, “Photoconductive THz detector based on new functional layers in multi-layer heterostructures”, Optics and Spectroscopy, 129:6 (2021), 741–746; Optics and Spectroscopy, 129:8 (2021), 851–856
Citation in format AMSBIB
\Bibitem{YacLavKha21}
\by A.~E.~Yachmenev, D.~V.~Lavrukhin, R.~A.~Khabibullin, Yu.~G.~Goncharov, I.~E.~Spektor, K.~I.~Zaitsev, V.~A.~Solov'ev, S.~V.~Ivanov, D.~S.~Ponomarev
\paper Photoconductive THz detector based on new functional layers in multi-layer heterostructures
\jour Optics and Spectroscopy
\yr 2021
\vol 129
\issue 6
\pages 741--746
\mathnet{http://mi.mathnet.ru/os118}
\crossref{https://doi.org/10.21883/OS.2021.06.50985.4-21}
\elib{https://elibrary.ru/item.asp?id=46489750}
\transl
\jour Optics and Spectroscopy
\yr 2021
\vol 129
\issue 8
\pages 851--856
\crossref{https://doi.org/10.1134/S0030400X21060187}
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