Zobrazeno 1 - 10
of 83
pro vyhledávání: '"S A Samagin"'
Publikováno v:
Bulletin of the Russian Academy of Sciences: Physics. 86:1434-1437
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03e6c11a263916eef8603fffb0459ec1
https://doi.org/10.3103/s1062873822120188
https://doi.org/10.3103/s1062873822120188
Publikováno v:
Bulletin of the Russian Academy of Sciences: Physics. 85:928-933
A study is performed of the possibility of using combined two-section optical elements for shaping light fields with two pronounced maxima in the intensity distribution that rotate upon propagation and focusing. Optical elements consisting of wedges,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6578a18a2029d5792db267ddf05bf430
https://doi.org/10.3103/s1062873821080219
https://doi.org/10.3103/s1062873821080219
Publikováno v:
Bulletin of the Lebedev Physics Institute. 46:148-152
We present the results of the experimental formation of contour vortex fields, based on optics of spiral light beams with diffractive phase elements using binary amplitude—phase masks and phase holograms with symmetric and asymmetric grating line p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::632bf4269b148dc90d7c067202dcd4bd
https://doi.org/10.3103/s1068335619040109
https://doi.org/10.3103/s1068335619040109
Autor:
Alexey Kalachev, N. N. Losevskii, E. V. Razuvaeva, A. V. Shkalikov, I. R. Imangulova, D. A. Turaikhanov, S. A. Samagin, Svetlana P. Kotova
Publikováno v:
Optics and Spectroscopy. 126:25-28
Specific features of the construction and recording of axially symmetric vortex fields using diffraction optical elements, which can be used for generating single-photon states with a nonzero orbital angular momentum in the process of spontaneous par
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::936d83e6b8e4fdfeda0bf9b176ab466c
https://doi.org/10.1134/s0030400x1901017x
https://doi.org/10.1134/s0030400x1901017x
Publikováno v:
2020 International Conference Laser Optics (ICLO).
The quality of axially symmetric vortex fields formation using a novel modulator is studied. The modulator is a 12-sectorial spiral plate operating due to the orientational Kerr effect in ferroelectric liquid crystals with a switching frequency of up
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed2468a49452704c430fcc5f663e52cb
https://doi.org/10.1109/iclo48556.2020.9285866
https://doi.org/10.1109/iclo48556.2020.9285866
Publikováno v:
Bulletin of the Lebedev Physics Institute. 45:71-74
The results of numerical simulation and experiments on the effect of amplitude and phase distortions on the formation of the light fields with the rotation of intensity distribution during propagation are presented. Practically significant cases of a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f8682163be9de2b0cd369d8800f3254e
https://doi.org/10.3103/s1068335618030028
https://doi.org/10.3103/s1068335618030028
Autor:
D. A. Turaykhanov, A. V. Shkalikov, S. A. Samagin, A. A. Kalachev, Svetlana P. Kotova, E.V. Razueva, N. N. Losevsky
Publikováno v:
Bulletin of the Lebedev Physics Institute. 45:79-82
Methods for beam shaping with nonzero orbital angular momentum are studied using diffraction optical elements with the purpose of developing a source of single-photon states based on spontaneous parametric down-conversion of light in the LiNbO3 cryst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c273bea9264b2c842a2ba0305924a53
https://doi.org/10.3103/s1068335618030041
https://doi.org/10.3103/s1068335618030041
Autor:
V.I. Pogonin, V.A. Barbashov, S. A. Samagin, Sofia I. Torgova, E. P. Pozhidaev, Svetlana P. Kotova, Vladimir G. Chigrinov, Vladimir V. Kesaev
Publikováno v:
Liquid Crystals and their Application. 17:90-96
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a642e30120a830a33064ba144c1d6a6
https://doi.org/10.18083/lcappl.2017.4.90
https://doi.org/10.18083/lcappl.2017.4.90
Autor:
Vadim A. Barbashov, Sofia I. Torgova, Vladimir V. Kesaev, E. P. Pozhidaev, S. A. Samagin, Svetlana P. Kotova
Publikováno v:
Optics & Laser Technology. 135:106711
Deformed-helix ferroelectric liquid crystals (DHFLCs) with sub-wavelength helix pitch usually demonstrate sub-millisecond electro-optical response time, but they cannot provide pure phase modulation. However, here, it is shown experimentally that the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3cff3d55abb0227bd6844e8f5a384d28
https://doi.org/10.1016/j.optlastec.2020.106711
https://doi.org/10.1016/j.optlastec.2020.106711
Publikováno v:
Russian Physics Journal. 58:1387-1393
The formation of light fields of various structure and real-time control of their parameters with the help of inexpensive and technologically simple adaptive devices is an urgent problem of modern optics. A 4-channel liquid-crystal (LC) modulator (LC
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b23b93c18ce4c1b63ff89092957aaf79
https://doi.org/10.1007/s11182-016-0660-8
https://doi.org/10.1007/s11182-016-0660-8