Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Pavel N. Dmitriev"'
Publikováno v:
Записки Горного института, Vol 264, Pp 949-961 (2023)
On the example of the Alardinskaya mine, the problem of underground mining of seams prone to spontaneous combustion and rock bumps in the conditions of the Kondomsky geological and economic region of the Kuznetsk coal basin is considered. The contrad
Externí odkaz:
https://doaj.org/article/9959dc886b10423181266962dadf8a51
Autor:
John D. Garrett, Ronald Hesper, Andrey Khudchenko, Boon-Kok Tan, Alessandro Traini, Pavel N. Dmitriev, Andrey M. Baryshev, Ghassan Yassin, Valery P. Koshelets
Publikováno v:
IEEE Transactions on Terahertz Science and Technology
Ieee transactions on terahertz science and technology, 10(6), 721-730. IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Ieee transactions on terahertz science and technology, 10(6), 721-730. IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
We describe the performance of a superconductor–insulator–superconductor (SIS) mixer operating in the frequency range of 780–950 GHz. Unlike most SIS mixers, the tunnel junction employs two different superconductors, a niobium nitride top and a
Autor:
Rolf Güsten, Bernd Klein, Michael Fominsky, Pavel N. Dmitriev, Duc van Nguyen, Christopher Heiter, Stefan Heyminck, D. Montofre, Andrey Khudchenko, Valery P. Koshelets, K. I. Rudakov, Andrey M. Baryshev, Ronald Hesper, J. Barkhof
Publikováno v:
Ieee transactions on terahertz science and technology, 9(6), 532-539. IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
We present the design and results of characterization of a new sideband separating (2SB) mixer for 800-950GHz, based on superconductor-insulator-superconductor (SIS) junctions. This is the first waveguide 2SB SIS mixer demonstrated at such a high fre
Autor:
Artem Chekushkin, Pavel N. Dmitriev, Lyudmila V. Filippenko, Valery P. Koshelets, M. Fominsky
Publikováno v:
Electronics, Vol 10, Iss 2944, p 2944 (2021)
Electronics; Volume 10; Issue 23; Pages: 2944
Electronics; Volume 10; Issue 23; Pages: 2944
Mixers based on superconductor–insulator–superconductor (SIS) tunnel junctions are the best input devices at frequencies from 0.1 to 1.2 THz. This is explained by both the extremely high nonlinearity of such elements and their extremely low intri
Autor:
Pavel N. Dmitriev, K. I. Rudakov, Bram N.R. Lap, A. Khudchenko, Fedor V Khan, Andrey M. Baryshev, Ronald Hesper, Valery P. Koshelets
Publikováno v:
OSA Optical Sensors and Sensing Congress 2021 (AIS, FTS, HISE, SENSORS, ES).
A Terahertz Dispersive Fourier Transform Spectrometer was used to study the RF properties of superconducting films used for THz detectors. The experimental results were fitted using an extended Mattis-Bardeen theory and show a good agreement.
Autor:
Ronald Hesper, Lyudmila V. Filippenko, Valery P. Koshelets, A. Khudchenko, Pavel N. Dmitriev, Andrey M. Baryshev, K. I. Rudakov
Publikováno v:
2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
This repost describes our results on development of low-noise heterodyne THz receivers for ground based and space radio astronomy. Superconductor-insulator-superconductor (SIS) mixers that employ high quality Nb-based tunnel junctions are the key ele
Autor:
Michael Faley, Valery P. Koshelets, M. Y. Li, Pavel N. Dmitriev, K. V. Kalashnikov, Oleg S. Kiselev, K. I. Rudakov, Vladimir L. Vaks, Arno de Lange, Lyudmila V. Filippenko, Anton A. Artanov, Nickolay V. Kinev, Huabing Wang, G. de Lange
Publikováno v:
Ieee transactions on terahertz science and technology, 5(4), 687-694. IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
A superconducting integrated receiver (SIR) comprises all of the elements needed for heterodyne detection on a single chip. Light weight and low power consumption combined with nearly quantum-limited sensitivity and a wide tuning range of the superco
Autor:
Shao-liang Li, Jing Li, Ming Yao, Michael Fominsky, Sheng-Cai Shi, Dong Liu, Valery Koshlets, Pavel N. Dmitriev
Publikováno v:
2017 10th Global Symposium on Millimeter-Waves.
China is planning to build a 5-m THz telescope named DATE5 at Dome A in Antarctica. The telescope will operate in 0.85 THz and 1.5 THz frequency bands. A waveguide superconductor-insulator-superconductor (SIS) mixer is developed for the 0.85 THz freq
Autor:
Lyudmila V. Filippenko, S V Shitov, V. V. Kurin, M. Yu. Torgashin, V P Koshelets, A B Ermakov, Alexander S. Sobolev, Pavel N. Dmitriev, P. A. Yagoubov, R. W. M. Hoogeveen, Andrey L. Pankratov
Publikováno v:
Superconductor Science and Technology. 17:S127-S131
Comprehensive measurements of the flux flow oscillator (FFO) radiation linewidth are performed using an integrated harmonic SIS mixer; the FFO linewidth and spectral line profile are compared to a theory. An essential dependence of the FFO linewidth
Autor:
C. Mahaini, Vladimir L. Vaks, M. Yu. Torgashin, Pavel N. Dmitriev, A.B. Ermakov, J. Mygind, V P Koshelets, Alexander S. Sobolev, P.R. Wesselius, S V Shitov, V.V. Khodos
Publikováno v:
Superconductor Science and Technology. 15:1701-1705
The Josephson flux flow oscillator (FFO) has proven to be one of the best on-chip local oscillators for heterodyne detection in integrated sub-mm receivers based on SIS mixers. Nb–AlOx–Nb FFOs have been successfully tested from about 120 to 700 G