Zobrazeno 1 - 10
of 22
pro vyhledávání: '"D. A. Safronenkov"'
Autor:
S. Kovalev, K.-J. Tielrooij, J.-C. Deinert, I. Ilyakov, N. Awari, M. Chen, A. Ponomaryov, M. Bawatna, T. V. A. G. de Oliveira, L. M. Eng, K. A. Kuznetsov, D. A. Safronenkov, G. Kh. Kitaeva, P. I. Kuznetsov, H. A. Hafez, D. Turchinovich, M. Gensch
Publikováno v:
npj Quantum Materials, Vol 6, Iss 1, Pp 1-6 (2021)
Abstract Topologically protected surface states present rich physics and promising spintronic, optoelectronic, and photonic applications that require a proper understanding of their ultrafast carrier dynamics. Here, we investigate these dynamics in t
Externí odkaz:
https://doaj.org/article/81c12363ad7c4e178f82fb0bfbb38555
Publikováno v:
JETP Letters. 114:565-571
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b8c72256d50335040517662b09728e0a
https://doi.org/10.1134/s0021364021220082
https://doi.org/10.1134/s0021364021220082
Publikováno v:
Optics letters. 47(18)
We extend the absolute quantum efficiency (QE) calibration method, previously used only for photon counters, to analog detectors with a high dispersion of single-photon responses. Our approach is demonstrated on a reference-free measurement of a phot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b8d57730b200a4f32f236a2a5ecaae54
https://pubmed.ncbi.nlm.nih.gov/36107104
https://pubmed.ncbi.nlm.nih.gov/36107104
Autor:
K. A. Kuznetsov, K. G. Katamadze, T. I. Novikova, D. A. Safronenkov, N. A. Borshchevskaya, G. Kh. Kitaeva
Publikováno v:
Optics express. 29(22)
An experimental scheme and data processing approaches are proposed for measuring by analog photo detectors the normalized second-order correlation function of the biphoton field generated under spontaneous parametric down-conversion. Obtained results
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::32c7fe8cb7660cc605d0a2a0a022440d
https://pubmed.ncbi.nlm.nih.gov/34809071
https://pubmed.ncbi.nlm.nih.gov/34809071
Publikováno v:
Applied Sciences
Volume 11
Issue 12
Applied Sciences, Vol 11, Iss 5580, p 5580 (2021)
Volume 11
Issue 12
Applied Sciences, Vol 11, Iss 5580, p 5580 (2021)
In this study, the efficient generation of terahertz radiation by a dipole photoconductive antenna, based on a thin island film of a topological insulator, was experimentally demonstrated. The performance of the Bi1.9Sb0.1Te2Se antenna was shown to b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::507b933e7f68b596e5cc8db1f79961db
Autor:
Galiya Kh. Kitaeva, K. A. Kuznetsov, D. A. Safronenkov, Alexander A. Ezhov, G. G. Yakushcheva, P. I. Kuznetsov
Publikováno v:
2020 7th All-Russian Microwave Conference (RMC).
The paper presents the results of a study of terahertz radiating antennas made on the base of island films of topological insulators of bismuth and antimony chalcogenides. It has been shown experimentally that a topological insulator film only a few
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::95deffb44e3d50e334ab9b73e695c815
https://doi.org/10.1109/rmc50626.2020.9312292
https://doi.org/10.1109/rmc50626.2020.9312292
Publikováno v:
2020 International Conference Laser Optics (ICLO).
Using terahertz time-domain spectroscopy, thin films of topological insulators Bi 2-x Sb x Te 3-y Se y of various thicknesses and chemical compositions were studied. An increase in the power of THz wave radiation was demonstrated by applying an exter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05383c3e0c1174ef8e7237eaf7b1c4e9
https://doi.org/10.1109/iclo48556.2020.9285871
https://doi.org/10.1109/iclo48556.2020.9285871
Autor:
D. A. Safronenkov, G. Kh. Kitaeva, P. I. Kuznetsov, A. G. Temiryazev, G. G. Yakushcheva, K. A. Kuznetsov
Publikováno v:
2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
Using time-domain spectroscopy we studied the topological insulators, Bi 2-x Sb x Te 3-y Se y thin films of different thickness and chemical composition. The obtained temporal dependences of terahertz pulses show that generation of THz radiation is m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03ac4c68096c93a01a2ea68b4d7d93fd
https://doi.org/10.1109/irmmw-thz.2019.8873970
https://doi.org/10.1109/irmmw-thz.2019.8873970
Autor:
S. V. Zaitsev, A. R. Bikmukhametova, V. I. Abakumov, Vladimir L. Bychkov, Vladimir Chernikov, G. V. Golubkov, D. A. Safronenkov
Publikováno v:
Journal of Physics: Conference Series. 1112:012022
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b52ad6db193fefb430077f8c5e4ee8be
https://doi.org/10.1088/1742-6596/1112/1/012022
https://doi.org/10.1088/1742-6596/1112/1/012022
Autor:
Vladimir L. Bychkov, D. A. Safronenkov, V. I. Abakumov, Vladimir Chernikov, A. R. Bikmukhametova
Publikováno v:
Journal of Physics: Conference Series. 996:012013
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f05f1fd330e1e09677aea3d405832d69
https://doi.org/10.1088/1742-6596/996/1/012013
https://doi.org/10.1088/1742-6596/996/1/012013