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1.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Bikbaev R. G., Krakhalev M. N., Prishchepa O. O., Sutormin V. S., Timofeev I. V., Zyryanov V. Ya.
Заглавие : Active beam steering by cholesteric layer with tangential-conical boundary conditions
Коллективы : International Liquid Crystal Conference
Место публикации : Abstracts of 28th International Liquid Crystal Conference (ILCC 2022). - 2022. - Ст.PF.292
Примечания : Cited References: 2
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2.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Arkhipkin V. G., Timofeev I. V.
Заглавие : Adiabatic propagation of short pulses under conditions of electromagnetically induced transparency
Место публикации : Quantum Electron.: Turpion LTD, 2000. - Vol. 30, Is. 2. - P.180-184. - ISSN 1063-7818, DOI 10.1070/QE2000v030n02ABEH001683
Примечания : Cited References: 31
Предметные рубрики: POPULATION TRANSFER
LASER-PULSES
INTERFERENCE
ENHANCEMENT
COHERENCE
QUANTUM
SYSTEMS
INDEX
Аннотация: The spatial and temporal dynamics of two short pulses propagating in an optically dense medium of resonant three-level Lambda-atoms is investigated numerically and analytically. The maximum coherence for the Raman transition due to coherent population trapping. it is shown that, at the initial stage of propagation, the waveforms of such pulses only slightly change along the length of the medium, which may considerably exceed the length of linear absorption for a single weak pulse. As the length of the absorbing medium increases, the energy of the probe (first) pulse is completely transferred into the second (control) pulse.
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3.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Arkhipkin V. G., Timofeev I. V.
Заглавие : Adiabatons and compression of pulses
Коллективы : International Conference on Physics and Control (2005 ; Aug ; 24-26; St Petersburg)
Место публикации : International Conference on Physics and Control (PHYSCON): IEEE, 2005. - P.668-671. - ISBN 0-7803-9234-5
Примечания : Cited References: 13
Аннотация: In the paper we analyze a propagation of a pulse pair in three-level atoms in a case of unequal oscillator strengths of two electric dipole transitions under coherent population trapping conditions. We show how to control the temporal shape of intense laser pulses using peculiarities of propagation dynamics under coherent population trapping. The temporal compression is demonstrated as a special case of pulse manipulation.
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4.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Krasnov A. I., Pankin P. S., Buzin D. S., Romanenko G. A., Sutormin V. S., Nabol S. V., Zelenov F. V., Masyugin A. N., Ветров, Степан Яковлевич, Timofeev I. V.
Заглавие : All-dielectric photonic crystal microcavity with electrically tunable Q-factor
Коллективы : International School and Conference on optoelectronics, photonics, engineering and nanostructures, Высшая школа экономики, НИУ, Санкт-Петербургский национальный исследовательский Академический университет имени Ж.И. Алфёрова Российской академии наук
Место публикации : 9th International School and Conference on Optoelectronics, Photonics, Engineering and Nanostructures: book of abstracts. - Saint-Petersburg, 2022
Примечания : Cited References: 3
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5.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Rudakova N. V., Timofeev I. V., Vetrov S. Ya., Lee W.
Заглавие : All-dielectric polarization-preserving anisotropic mirror
Место публикации : OSA Contin. - 2018. - Vol. 1, Is. 2. - P.682-689. - ISSN 2578-7519, DOI 10.1364/OSAC.1.000682
Примечания : Cited References: 39. - Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund (17-42-240464). Ministry of Science and Technology, Taiwan (MOST) (106-2923-M-009-002-MY3).
Предметные рубрики: Nanophotonics, Metamaterials, and Photonic Crystals
Ключевые слова (''Своб.индексиров.''): cholesteric liquid crystals--circular polarization--electric fields--optical devices--phase plates--refractive index
Аннотация: The structure consisting of alternating uniaxial dielectric layers is known to produce reflection of the same polarization as the incident field; e.g., the right-hand elliptically polarized light preserves this right-handedness and ellipticity of polarization at reflection. The parameters permitting the properly-polarized reflectance to exceed 99% in a wide frequency range were considered both analytically and numerically. The mirror with tuned top-layer thickness is shown to have several times less polarization losses than the uniform mirror. The hybrid mirror with metallic bottom layer has a considerably reduced thickness.
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6.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Vetrov S.Ya., Timofeev I. V., Shabanov A. V.
Заглавие : Anisotropy of nonlinear optical transmission at the edge of the photonic band gap of an apodized layered medium
Место публикации : Optics and Spectroscopy (English translation of Optika i Spektroskopiya). - 2008. - Vol. 104, Is. 5. - P.751-755. - ISSN 0030-400X, DOI 10.1134/S0030400X08050172
Ключевые слова (''Своб.индексиров.''): anisotropy--light transmission--multilayers--photonic crystals--refractive index--spectrum analysis--transfer matrix method--multilayer structure--nonlinear effects--transmission spectrum--laser radiation
Аннотация: The effect of Kerr nonlinearity on the transmission of laser radiation in a one-dimensional photonic crystal has been investigated by the transfer-matrix method, modified to describe nonlinear effects. The crystal under study is a thin-film multilayer structure with a spatial distribution of the refractive index, which makes it possible to eliminate side bands in the transmission spectrum at each side of the photonic band gap and significantly increase the slope of the transmission curve. The transmission spectrum of such a photonic crystal structure has been studied for two opposite directions of laser radiation propagation. The anisotropy of nonlinear transmission is most pronounced near the edge of the photonic crystal band gap, which lies in the near-IR region. The proposed structure, having strong transmission anisotropy and sufficiently low reflection in the forward direction, can operate as an optical diode (analog of an electron diode). В© 2008 Pleiades Publishing, Ltd.
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7.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gunyakov V. A., Sutormin V. S., Timofeev I. V., Shabanov V. F., Zyryanov V. Ya.
Заглавие : Anomalous spectral shift of o-modes in multilayer photonic structure induced by homeotropic–homeoplanar transition in chiral–nematic defect layer
Колич.характеристики :11 с
Место публикации : Photonics. - 2023. - Vol. 10, Is. 9. - Ст.959. - ISSN 23046732 (eISSN), DOI 10.3390/photonics10090959
Примечания : Cited References: 39
Аннотация: A chiral nematic is embedded between multilayer mirrors to obtain voltage-inducible polarized resonance spectra. Initially, the nematic director is uniformly oriented perpendicular to the mirrors’ surfaces because the chiral nematic helix is completely untwisted due to the homeotropic boundary conditions specified by the adsorbed cations. Then, a voltage is applied to remove the layer of surface-active cations from the input mirror. The obtained twisted homeoplanar configuration has a helix pitch exceeding the layer’s thickness. The twisting leads to the anomalous blue shift of the o-modes in the transmittance spectrum of the photonic structure. This blue shift can be effectively compensated by repulsion of spectral peaks as a result of mode coupling in the vicinity of the virtual avoided crossing point. The experimental results obtained are confirmed numerically using the 4 ˣ 4 transfer matrix method and explained with the contribution of a geometric phase.
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8.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Pankin P. S., Shabanov A. V., Maksimov D. N., Nabol S. V., Buzin D. S., Krasnov A. I., Romanenko G. A., Sutormin V. S., Gunyakov V. A., Zelenov, Fyodor V., Masyugin, Albert N., Vyatkin, Vladimir P., Nemtsev I. V., Volochaev M. N., Vetrov S. Ya., Timofeev I. V.
Заглавие : Asymmetric resonant light absorption in a chloroplast microstructure
Место публикации : J. Opt. Soc. Am. B. - 2023. - Vol. 40, Is. 1. - P.87-93. - ISSN 07403224 (ISSN), DOI 10.1364/JOSAB.477110. - ISSN 15208540 (eISSN)
Примечания : Cited References: 45
Аннотация: It is shown that in the chloroplast periodic structure with a defect, the resonant absorption of light can be implemented. It is found that the resonant light absorption depends significantly on the position of a defect. In terms of the absorption of light energy, an asymmetric resonator is more efficient than a symmetric one.
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9.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Vetrov S.Ya., Timofeev I. V., Rudakova N. V.
Заглавие : Band structure of a two-dimensional resonant photonic crystal
Место публикации : Phys. Solid State: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2010. - Vol. 52, Is. 3. - P.527-532. - ISSN 1063-7834, DOI 10.1134/S1063783410030133
Примечания : Cited References: 16. - This study was supported by the Council on Grants from the President of the Russian Federation (grant nos. 3818.2008.3 and 1292.2008.2), the Ministry of Education and Science of the Russian Federation within the framework of the program "Development of the Scientific Potential of the Higher School" (RNP no. 2.1.1/3455), the Presidium of the Russian Academy of Sciences (project no. 27.1), and the Siberian Branch of the Russian Academy of Science (project nos. 5 and 144).
Предметные рубрики: TRANSMISSION
LASER
Аннотация: The band structure of two-dimensional resonant photonic crystals of two types has been calculated using the expansion of eigenfunctions in plane waves. Crystals of one type consist of infinite dielectric cylinders forming a square lattice filled with a resonant gas, and crystals of the other type consist of infinite cylindrical holes filled with a resonant gas and forming a square lattice in a dielectric matrix. It has been shown that, in both cases, the dispersion of a resonant gas in combination with the dispersion of a two-dimensional structure with a photonic band gap leads to the appearance of an additional narrow transmission band near the edge of the band gap or an additional band gap in the continuous spectrum of the photonic crystal. The calculations performed have demonstrated that new dispersion properties substantially depend on the density of the resonant gas, the position of the resonant frequency with respect to the edge of the band gap, and the direction of propagation of electromagnetic waves.
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10.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Gunyakov V. A., Timofeev I. V., Krakhalev M. N., Lee W., Zyryanov V. Ya.
Заглавие : Bisector effect in a twisted-nematic Fabry–Pйrot cavity
Коллективы : European Conference on Liquid Crystals, Московский государственный университет им. М.В. Ломоносова
Место публикации : 14th Eur. Conf. Liq. Cryst. (ECLC): conf. programme/ чл. нац. орг. и прогр. ком. V. Ya. Zyryanov. - 2017. - Ст.O61. - P.10
Примечания : Библиогр.: 3
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