Zobrazeno 1 - 10
of 10
pro vyhledávání: '"A. M. Khegai"'
Autor:
Konstantin M. Khegai
Publikováno v:
Археология евразийских степей, Vol 1, Pp 127-133 (2024)
The paper deals with the result of the theoretical and methodological research of scientific publications, dedicated to the paleoanthropological study of the Middle Bronze Age population of the Volga-Don steppes. The results of the analysis made it p
Externí odkaz:
https://doaj.org/article/cadc1f5360bb4ae798ec84c162a62384
Autor:
Alexander V. Elopov, Konstantin E. Riumkin, Fedor V. Afanasiev, Sergey V. Alyshev, Alexander V. Kharakhordin, Aleksandr M. Khegai, Elena G. Firstova, Sergei V. Firstov, Konstantin N. Nishchev, Mikhail A. Melkumov
Publikováno v:
Photonics, Vol 10, Iss 8, p 860 (2023)
The polarization properties of bismuth active centers (BACs) are important for many applications of bismuth-doped fibers, but they are still lacking in study. In this paper, we present the measurements of polarized luminescence (PL) of the BACs forme
Externí odkaz:
https://doaj.org/article/1e5b290099944368853052e030a1515a
Publikováno v:
Rossijskij Vestnik Perinatologii i Pediatrii, Vol 66, Iss 3, Pp 27-33 (2021)
This review demonstrates the role of the immune system in the development and progression of cardiac pathology caused by viral infection. The authors describe the role of lymphocytes (T- helper-17–Th17) in the viral persistence in myocardial tissue
Externí odkaz:
https://doaj.org/article/fd6817059c854172845372b2daebba0c
Autor:
Aram A. Mkrtchyan, Mikhail S. Mishevsky, Yuriy G. Gladush, Mikhail A. Melkumov, Aleksandr M. Khegai, Pavlos G. Lagoudakis, Albert G. Nasibulin
Publikováno v:
Journal of Lightwave Technology. 41:2494-2500
We present a comprehensive study of dispersion managed ultrashort-pulse generation in Nd-doped polarization maintaining all-fiber laser at a 920 nm wavelength. We implement a linear laser scheme with a chirped fiber Bragg grating (CFBG) serving as a
Autor:
A. S. Vakhrushev, A. V. Kharakhordin, A. M. Khegai, S. V. Alyshev, K. E. Riumkin, E. G. Firstova, A. A. Umnikov, A. S. Lobanov, F. V. Afanas’ev, A. N. Gur’yanov, M. A. Mel’kumov, S. V. Firstov
Publikováno v:
Bulletin of the Lebedev Physics Institute. 49:S1-S6
Autor:
Grzegorz Gomółka, Monika Krajewska, Małgorzata Kaleta, Aleksandr M. Khegai, Sergey V. Alyshev, Aleksey S. Lobanov, Sergei V. Firstov, Michał Nikodem
Publikováno v:
Photonics, Vol 7, Iss 4, p 128 (2020)
The spectral range between 1650 and 1700 nm is an interesting region due to its potential applications in optical telecommunication and optical-based methane sensing. Unfortunately, the availability of compact and simple optical amplifiers with outpu
Externí odkaz:
https://doaj.org/article/8ce2badf0c0540e888a68e7feb0e32c5
W-type and Graded-index bismuth-doped fibers for efficient lasers and amplifiers operating in E-band
Autor:
A. S. Vakhrushev, A. A. Umnikov, A. S. Lobanov, E. G. Firstova, E. B. Evlampieva, K. E. Riumkin, A. V. Alyshev, A. M. Khegai, A. N. Guryanov, L. D. Iskhakova, M. A. Melkumov, S. V. Firstov
Publikováno v:
Optics express. 30(2)
In this paper, we focus on the fabrication and investigation of optical properties of W-type and Graded-index single-mode Bi-doped germanosilicate fibers. The laser and gain characteristics of Bi-doped fibers of new designs were studied. It was shown
Autor:
Grzegorz Gomółka, Michal Majewski, Magdalena Zatorska, Aleksandr M. Khegai, Sergey V. Alyshev, Aleksey S. Lobanov, Sergei V. Firstov, Michal Nikodem
Publikováno v:
Conference on Lasers and Electro-Optics.
We present a tunable, continuous-wave fiber laser with a tuning range of 187 nm (1617-1804 nm) and an fiber amplifier with an output power of more than 200 mW, both based on bismuth-doped germanosilicate fiber.
Publikováno v:
Laser Physics Letters; Nov2019, Vol. 16 Issue 11, p1-1, 1p
Autor:
S V Firstov, K E Riumkin, A M Khegai, S V Alyshev, M A Melkumov, V F Khopin, F V Afanasiev, A N Guryanov, E M Dianov
Publikováno v:
Laser Physics Letters; Nov2017, Vol. 14 Issue 11, p1-1, 1p