Zobrazeno 1 - 10
of 176
pro vyhledávání: '"Chekalin Sergey"'
Autor:
Arkhipova Antonina A., Ivanov Sergey K., Zhuravitskii Sergey A., Skryabin Nikolay N., Dyakonov Ivan V., Kalinkin Alexander A., Kulik Sergey P., Kompanets Victor O., Chekalin Sergey V., Kartashov Yaroslav V., Zadkov Victor N.
Publikováno v:
Nanophotonics, Vol 11, Iss 16, Pp 3653-3661 (2022)
We report the experimental observation of the periodic switching of topological edge states between two dimerized fs-laser written waveguide arrays. Switching occurs due to the overlap of the modal fields of the edge states from topological forbidden
Externí odkaz:
https://doaj.org/article/de2b3fe6b7684c458552d78e7c274585
Autor:
Kompanets, Victor O., Zhong, Hua, Zhang, Yiqi, Kartashov, Yaroslav V., Li, Yongdong, Zhuravitskii, Sergei A., Skryabin, Nikolay N., Dyakonov, Ivan V., Kalinkin, Alexander A., Kulik, Sergei P., Chekalin, Sergey V., Zadkov, Victor N.
Publikováno v:
Light: Science and Applications 13, 264 (2024)
Higher-order topological insulators (HOTIs) are unique materials hosting topologically protected states, whose dimensionality is at least by a factor of 2 lower than that of the bulk. Topological states in such insulators may be strongly confined in
Externí odkaz:
http://arxiv.org/abs/2402.01979
Autor:
Arkhipova, Antonina A., Zhang, Yiqi, Kartashov, Yaroslav V., Zhuravitskii, Sergei A., Skryabin, Nikolay N., Dyakonov, Ivan V., Kalinkin, Alexander A., Kulik, Sergei P., Kompanets, Victor O., Chekalin, Sergey V., Zadkov, Victor N.
Publikováno v:
Science Bulletin 68, 2017-2024 (2023)
Floquet systems with periodically varying in time parameters enable realization of unconventional topological phases that do not exist in static systems with constant parameters and that are frequently accompanied by appearance of novel types of the
Externí odkaz:
http://arxiv.org/abs/2307.12865
Autor:
Li, Chunyan, Arkhipova, Antonina A., Kartashov, Yaroslav V., Zhuravitskii, Sergey A., Skryabin, Nikolay N., Dyakonov, Ivan V., Kalinkin, Alexander A., Kulik, Sergey P., Kompanets, Victor O., Chekalin, Sergey V., Zadkov, Victor N.
Publikováno v:
ACS Photonics 2023 10 (6), 1976-1982
We study both, experimentally and theoretically, propagation of light in the fs-laser written rotating square waveguide arrays and present the first experimental evidence of light localization induced by the rotation of periodic structure in the dire
Externí odkaz:
http://arxiv.org/abs/2305.11091
Publikováno v:
EPJ Web of Conferences, Vol 220, p 01003 (2019)
The results of investigation of extremely compressed wave packets penetration of air gap under single femtosecond laser pulse filamentation in LiF at anomalous group velocity dispersion are presented. It is revealed by laser coloration method that a
Externí odkaz:
https://doaj.org/article/d612fc2c7fb44a7b96d0f0079a5f10a3
Publikováno v:
EPJ Web of Conferences, Vol 161, p 02011 (2017)
A colour-centre structure formed in a LiF crystal under filamentation of a femtosecond mid-IR laser pulse with a power slightly exceeding the critical power for self-focusing has been experimentally and theoretically investigated. A single-cycle ligh
Externí odkaz:
https://doaj.org/article/6d9747dbbe814db59de06f70f3e66d20
Publikováno v:
EPJ Web of Conferences, Vol 161, p 01006 (2017)
The state of research of the light bullets (LB) formation in the process of femtosecond laser pulse filamentation is presented. LB is a near single-cycle wave packet that is formed in the result of the light field self-organization in a nonlinear dis
Externí odkaz:
https://doaj.org/article/9a8bf91002a2425ba8f3ccef59e654db
Autor:
Melnikov Alexey, Boldyrev Kirill, Selivanov Yuri, Martovitskii Victor, Chekalin Sergey, Ryabov Evgeni
Publikováno v:
EPJ Web of Conferences, Vol 161, p 01009 (2017)
Using the electro-optic detection method we have detected coherent phonons of Eg1, Eu1, Eg2, and A1g1 symmetry generated in a crystalline film of Bi2Se3 by a powerful single-cycle THz pulse. Coherent excitation of Raman active modes is interpreted as
Externí odkaz:
https://doaj.org/article/98296085716143089273508c9b7f0132
Autor:
Zaloznaya, Elizaveta, Kompanets, Victor, Savvin, Alexander, Dormidonov, Alexander, Chekalin, Sergey, Kandidov, Valery
A light bullet is an extremely compressed in space and time wave packet of a few optical cycles, which is formed in the bulk transparent dielectric during femtosecond filamentation under anomalous group velocity dispersion. The effect of a carrier-en
Externí odkaz:
http://arxiv.org/abs/2201.04357
The results of investigation of extremely compressed wave packet-light bullet (LB) penetration through an air gap under single-pulse femtosecond Mid IR filamentation in LiF are presented. It is revealed by the laser coloration method and from numeric
Externí odkaz:
http://arxiv.org/abs/2001.09605