Abstract:
A source of terahertz (THz) frequency range based on a long Josephson junction is proposed and studied experimentally. The emission is transmitted to open space using a slot antenna located on a single chip with the oscillator and matched to collecting lens. We fabricated and studied several designs of the emitter developed for frequency ranges of 250 – 410 GHz, 330 – 530 GHz and 390 – 700 GHz with continuous frequency tuning. The spectral characteristics of output emission are studied using a THz spectrometer based on the superconducting receiver with spectral resolution of about 0.1 MHz. The antenna characteristics in full range of operation are studied using a cooled silicon bolometer with high sensitivity. Experimental results match to numerical simulations.
This study was supported by the Russian Scientific Foundation (grant no. 17-79-20343). The samples were fabricated on the unique scientific unit (USU no. 352529) (Kotel’nikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences), which was created and functions at the expense of budget funding within the framework of a state task.
Citation:
N. V. Kinev, K. I. Rudakov, L. V. Filippenko, V. P. Koshelets, A. M. Baryshev, “Terahertz source emitting to open space based on long Josephson junction”, Fizika Tverdogo Tela, 62:9 (2020), 1379–1384; Phys. Solid State, 62:9 (2020), 1543–1548
\Bibitem{KinRudFil20}
\by N.~V.~Kinev, K.~I.~Rudakov, L.~V.~Filippenko, V.~P.~Koshelets, A.~M.~Baryshev
\paper Terahertz source emitting to open space based on long Josephson junction
\jour Fizika Tverdogo Tela
\yr 2020
\vol 62
\issue 9
\pages 1379--1384
\mathnet{http://mi.mathnet.ru/ftt8305}
\crossref{https://doi.org/10.21883/FTT.2020.09.49757.02H}
\elib{https://elibrary.ru/item.asp?id=44154217}
\transl
\jour Phys. Solid State
\yr 2020
\vol 62
\issue 9
\pages 1543--1548
\crossref{https://doi.org/10.1134/S1063783420090140}
Linking options:
https://www.mathnet.ru/eng/ftt8305
https://www.mathnet.ru/eng/ftt/v62/i9/p1379
This publication is cited in the following 6 articles:
L. V. Filippenko, A. M. Chekushkin, M. Yu. Fominsky, A. B. Ermakov, N. V. Kinev, K. I. Rudakov, A. V. Khudchenko, A. M. Baryshev, V. P. Koshelets, S. A. Nikitov, “Superconducting terahertz receivers”, Phys. Usp., 67:11 (2024), 1139–1152
N. V. Kinev, K. I. Rudakov, L. V. Filippenko, V. P. Koshelets, “Study of Josephson Generation Harmonics in a Long Josephson Junction”, Radiophys Quantum El, 65:8 (2023), 593
Andrei S. Malishevskii, Sergey A. Uryupin, “Dispersion Law and Decrement of Superluminal Surface Wave in Josephson Sandwich”, J Russ Laser Res, 43:2 (2022), 176
Nickolay V. Kinev, Kirill I. Rudakov, Lyudmila V. Filippenko, Valery P. Koshelets, “Direct Experimental Observation of Harmonics of Josephson Generation in the Flux-Flow Oscillator”, IEEE Trans. Appl. Supercond., 32:4 (2022), 1
Nickolay V. Kinev, Kirill I. Rudakov, Lyudmila V. Filippenko, Valery P. Koshelets, 2021 Radiation and Scattering of Electromagnetic Waves (RSEMW), 2021, 235
N. V. Kinev, K. I. Rudakov, L. V. Filippenko, V. P. Koshelets, “Terahertz spectroscopy system of gas mixtures based on a solid state superconducting source and a terahertz receiver”, Phys. Solid State, 63:9 (2021), 1414–1418