Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Samagin Sergey"'
Publikováno v:
EPJ Web of Conferences, Vol 220, p 01005 (2019)
Experimental results of the formation of axially symmetric vortex light fields with a frequency of up to 2 kilohertz are presented. The results were obtained by using a 12-sector spiral phase plate (SPP) based on a planar-oriented layer of a 50 μm-t
Externí odkaz:
https://doaj.org/article/b28346c7d0294e9f8ac909a95a19fcb1
Publikováno v:
EPJ Web of Conferences, Vol 190, p 03006 (2018)
The results of numerical simulation of new schemes of compact modal LC spatial modulators are presented. Special configurations of contact electrodes and predetermined values of applied voltages provide the jump in the profile of phase delay of light
Externí odkaz:
https://doaj.org/article/d9e94045c3064e76865fc1f92eae71dc
Publikováno v:
EPJ Web of Conferences, Vol 161, p 02015 (2017)
The capabilities of modal LC modulator (LC focusator) for optical vortices formation are demonstrated. Two options of changing of the contact electrodes geometry providing a voltage jump and accordingly the jump for profile of phase transmission of m
Externí odkaz:
https://doaj.org/article/75147408d1d0492288d45ae860f665df
Publikováno v:
EPJ Web of Conferences, Vol 161, p 01007 (2017)
The work investigates the possibility for building of zonal spatial phase light modulators employing the quadratic electro-optic effect in ferroelectric liquid-crystals and capable of providing modulation frequencies up to 1 kHz. The study is made th
Externí odkaz:
https://doaj.org/article/3f9e3a6f0c714527a166f708a80755cd
Autor:
Volostnikov Vladimir, Vorontsov Evgeniy, Kotova Svetlana, Losevsky Nikolay, Prokopova Darya, Samagin Sergey
Publikováno v:
EPJ Web of Conferences, Vol 161, p 03010 (2017)
The work contains study of the influence of amplitude and phase distortions on the generation of two-lobe light fields with the intensity distribution rotating under propagation. Spiral beams, as well as light fields formed on their basis, are consid
Externí odkaz:
https://doaj.org/article/e8a8e8d2fc1a4d61a656eba4dd23f1a1
Autor:
Kotova, Svetlana P., Коrobtsov, Alexander V., Losevsky, Nicolay N., Mayorova, Аlexandra М., Samagin, Sergey A.
Publikováno v:
In Journal of Quantitative Spectroscopy and Radiative Transfer July 2021 268
Autor:
Kotova, Svetlana P., Pozhidaev, Evgeny P., Samagin, Sergey A., Kesaev, Vladimir V., Barbashov, Vadim A., Torgova, Sofia I.
Publikováno v:
In Optics and Laser Technology March 2021 135
Publikováno v:
Physical Review E 92, 062502 (2015)
We study both experimentally and theoretically modulation of light in a planar aligned deformed-helix ferroelectric liquid crystal (DHFLC) cell with subwavelength helix pitch, which is also known as a short-pitch DHFLC. In our experiments, azimuthal
Externí odkaz:
http://arxiv.org/abs/1508.04964
Autor:
Volostnikov, Vladimir G., Vorontsov, Evgeny N., Losevsky, Nicolay N., Kotova, Svetlana P., Prokopova, Darya V., Samagin, Sergey A.
Publikováno v:
KnE Energy & Physics; 4/25/2018, Vol. 2018, p469-481, 13p
Autor:
Guralnik, Igor R., Samagin, Sergey A.
Publikováno v:
Proceedings of SPIE; Nov2003, Issue 1, p673-680, 8p