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1.
Critical coupling vortex
with
grating
-induced high Q-factor optical Tamm states / R. G. Bikbaev, D. N. Maksimov, P. S. Pankin [et al.]> // Opt. Express. - 2021. -
Vol. 29
,
Is. 3
. - P. 4672-4680,
DOI
10.1364/OE.416132. - Cited References: 54. - Funding. Ministry of Science and Technology, Taiwan (108-2923E-009-003-MY3); Russian Foundation for Basic Research (19-52-52006); Council on grants of the President of the Russian Federation (MK-46.2021.1.2) . - ISSN 1094-4087
Кл.слова (ненормированные):
Angle of Incidence
--
Bound state
--
Coupled mode theory
--
Critical coupling
--
Dielectric
grating
--
High Q-factor
--
Reflectance amplitudes
--
Reflection amplitude
Аннотация:
We investigate optical Tamm states supported by a dielectric
grating
placed on top of a distributed Bragg reflector. It is found that under certain conditions the Tamm state may become a bound state in the continuum. The bound state, in its turn, induces the effect of critical coupling with the reflectance amplitude reaching an exact zero. We demonstrate that the critical coupling point is located in the core of a vortex of the reflection amplitude gradient in the space of the wavelength and angle of incidence. The emergence of the vortex is explained by the coupled mode theory.
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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Institute of Imaging and Biomedical Photonics, National Chiao Tung University, Tainan, 71150, Taiwan
Доп.точки доступа:
Bikbaev, R. G.; Бикбаев, Рашид Гельмединович; Maksimov, D. N.; Максимов, Дмитрий Николаевич; Pankin, P. S.; Панкин, Павел Сергеевич; Chen, K. -P.; Timofeev, I. V.; Тимофеев, Иван Владимирович
}
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2.
Arkhipkin, V. G.
Diffraction of vortex Gaussian beams from a two-dimensional Raman-induced
grating
/ V. G. Arkhipkin, S. A. Myslivets> // Laser Phys. - 2021. -
Vol. 31
,
Is. 6
. - Ст. 065401,
DOI
10.1088/1555-6611/abf567. - Cited References: 41 . - ISSN 1054-660X. - ISSN 1555-6611
РУБ
Optics + Physics, Applied
Кл.слова (ненормированные):
diffraction
--
Raman gain
--
Talbot effect
--
optical vortex beam
Аннотация:
In this paper, we study diffraction of a vortex Gaussian probe beam on a two-dimensional (2D) Raman-induced diffraction
grating
. Both near- and far-field diffraction of a vortex beam is considered. In the near field, quasi-Talbot images occur at specific distances from the
grating
, which corresponds to the classical Talbot length. Diffraction patterns in the Talbot planes are a periodic 2D array of ring-like vortex beamlets with topological charges (TCs) equal to the illuminating probe beam's charge. The lateral (off-axis) beamlets consist of several overlapping vortices with the TCs l = 1 and l =-1, and their centers (singular points) are offset relative to each other. It is shown that in the near field the TC is conserved, and the total diffraction field represents a single (global) vortex with an effective TC equal to the charge of the vortex probe beam. In the far field, diffraction patterns are also a 2D array of ring-like local vortices with a period depending on the z coordinate. Their TCs are equal to the charge of the probe field. It is shown that in a far field, the diffracted field's total TC is also equal to that of the probe field. We demonstrate that by choosing the pump field parameters, one can effectively control the intensity of diffraction orders.
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Держатели документа:
RAS, Fed Res Ctr KSC SB, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Dept Photon & Laser Technol, Krasnoyarsk 660041, Russia.
Доп.точки доступа:
Myslivets, S. A.; Мысливец, Сергей Александрович; Архипкин, Василий Григорьевич
}
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3.
A Bandpass Filter
Based on Dielectric Layers with a Strip Conductor Subwavelength
Grating
at Their Interfaces / B. A. Belyaev, V. V. Tyurnev, A. S. Voloshin [et al.]> // Dokl. Phys. - 2020. -
Vol. 65
,
Is. 9
. - P. 343-348,
DOI
10.1134/S1028335820090013. - Cited References: 12. - This study was supported by the Ministry of Science and Higher Education of the Russian Federation, state assignment no. FEFE-2020-0013 “Development of the Theory of Self-Configurable Machine-Learning Algorithms for Simulating and Predicting Characteristics of Complex Systems” . - ISSN 1028-3358
Кл.слова (ненормированные):
frequency response
--
return loss
--
passband filter
--
insertion loss
Аннотация:
The design of a multilayer bandpass filter has been investigated, in which each of the half-wavelength resonators consists of two dielectric layers with outer strip conductor gratings in the form of square grids and inner ones in the form of square patches. The grids serve as mirrors with specified reflective properties, which ensure optimal couplings of the outer resonators with free space and optimal coupling between the resonators. The patch gratings make it possible to tune the resonator eigenfrequency during the filter synthesis. The efficiency of the quasi-static calculation of the frequency response for the layered structure is shown for the case of a lattice period smaller than the wavelength in the dielectric and much smaller than the layer thickness. Since the calculation does not require much computing power, the parametric synthesis of the device can be performed on a conventional personal computer. The measured characteristics of the prototype of the synthesized third-order filter with a fractional passband width of ∼10% and a central passband frequency of ∼10.6 GHz are in good agreement with the calculation. The proposed design allows one to fabricate multilayer panels radio transparent in a certain frequency band for hiding microwave antennas.
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Публикация на русском языке
Полосно-пропускающий фильтр из диэлектрических слоев с субволновыми решетками полосковых проводников на границах [Текст] / Б. А. Беляев, В. В. Тюрнев, А. С. Волошин [и др.] // Доклады Академии наук. Физика, технические науки. - 2020. - Т. 494 № 1. - С. 75-81
Держатели документа:
Kirensky Institute of Physics, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Siberian State University of Science and Technology, Krasnoyarsk, 660014, Russian Federation
Доп.точки доступа:
Belyaev, B. A.; Беляев, Борис Афанасьевич; Tyurnev, V. V.; Тюрнев, Владимир Вениаминович; Voloshin, A. S.; Волошин, Александр Сергеевич; Leksikov, An. A.; Лексиков, Андрей Александрович; Galeev, R. G.; Shabanov, V. F.; Шабанов, Василий Филиппович
}
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4.
Refractive index sensing
with optical bound states in the continuum / D. N. Maksimov, V. S. Gerasimov, S. Romano, S. P. Polyutov> // Opt. Express. - 2020. -
Vol. 28
,
Is. 26
. - P. 38907-38916,
DOI
10.1364/OE.411749. - Cited References: 56. - The research was supported by the Ministry of Science and High Education of Russian Federation, project no. FSRZ-2020-008. DNM is grateful to Andrey A. Bogdanov for useful discussion . - ISSN 1094-4087
Кл.слова (ненормированные):
Optical constants
--
Optics
--
Analytic formula
--
Bound state
--
Dielectric
grating
--
Differential sensitivity
--
Figure of merits
--
Optimisation designs
--
Perturbative approach
--
Refractive index sensing
Аннотация:
We consider refractive index sensing with optical bounds states in the continuum (BICs) in dielectric gratings. Applying a perturbative approach we derived the differential sensitivity and the figure of merit of a sensor operating in the spectral vicinity of a BIC. Optimisation design approach for engineering an effective sensor is proposed. An analytic formula for the maximal sensitivity with an optical BIC is derived. The results are supplied with straightforward numerical simulations.
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Держатели документа:
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Institute of Computational Modeling SB RAS, Krasnoyarsk, 660036, Russian Federation
Institute of Applied Sciences and Intelligent Systems, National Research Council, Naples, 80131, Italy
Доп.точки доступа:
Maksimov, D. N.; Максимов, Дмитрий Николаевич; Gerasimov, V. S.; Romano, S.; Polyutov, S. P.
}
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5.
Arkhipkin, V. G.
The Talbot effect under selective reflection from a Raman induced
grating
/ V. G. Arkhipkin, S. A. Myslivets> // J. Sib. Fed. Univ. Math. Phys. - 2022. -
Vol. 15
,
Is. 6
. - P. 687-698 ; Журн. СФУ. Матем. и физика,
DOI
10.17516/1997-1397-2022-15-6-687-698. - Cited References: 33. - This work was partially (results for 1D gratings) supported by the Russian Science Foundation (RSF) through Grant 19-12-00203 . - ISSN 1997-1397. - ISSN 2313-6022
Перевод заглавия:
Эффект Тальбота при селективном отражении от рамановски индуцированной решетки
Кл.слова (ненормированные):
Raman gain
--
Fresnel diffraction
--
Talbot effect
--
selective reflection
--
рамановское усиление
--
дифракция Френеля
--
эффект Тальбота
--
селективное отражение
Аннотация:
In the present work, we study the Talbot effect under selective reflection of probe radiation at the interface between a dielectric and a layer of resonant atoms, in which a Raman
grating
is induced. Under such conditions, the interface can operate as a reflective diffraction
grating
. The cases of one- and two-dimensional gratings are considered. It is shown that the reflection coefficient, with the account of the selectively reflected wave, can be both greater or smaller than the usual Fresnel reflection coefficient. The Talbot effect can be observed for a selectively reflected wave in the near-field diffraction region. The spatial structure of the diffraction patterns essentially depends on the pump field intensity and the Raman detuning.
В работе исследуется эффект Тальбота при селективном отражении пробного излучения на границе раздела диэлектрик — слой резонансных атомов, в котором индуцируется рамановская решетка. В таких условиях интерфейс может выступать как отражательная дифракционная решетка. Рассмотрены случаи одномерных и двумерных решеток. Показано, что коэффициент отражения с учетом селективно отраженной волны может быть как больше, так и меньше обычного коэффициента отражения Френеля. Эффект Тальбота можно наблюдать для селективно отраженной волны в ближней дифракционной области. Пространственная структура дифракционных картин существенно зависит от напряженности поля накачки и рамановской отстройки.
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Держатели документа:
Kirensky Institute of Physics Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Myslivets, S. A.; Мысливец, Сергей Александрович; Архипкин, Василий Григорьевич
}
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6.
Super-bound states in
the continuum through merging in
grating
/ E. Bulgakov, G. Shadrina, A. Sadreev, K. Pichugin> // Phys. Rev. B. - 2023. -
Vol. 108
,
Is. 12
. - Ст. 125303,
DOI
10.1103/PhysRevB.108.125303. - Cited References: 70. - We thankful Yi Xu and Zhanyuan Zhang for numerous fruitful discussions. The work was supported by Russian Science Foundation Grant No. 22-12-00070 . - ISSN 2469-9950. - ISSN 2469-9969
Аннотация:
We consider bound states in the continuum (BICs) in
grating
composed of infinitely long silicon rods of rectangular cross-section. We reveal merging off-Γ Friedrich-Wintgen BIC with symmetry protected BIC. We present CMT and multipole decomposition theory, complementing each other, to analyze the merging phenomenon. The theories show a crossover of the behavior of Q factor from standard inverse square law k-2x,z towards extremely fast boosting law k-6x,z in momentum space. In turn that crossover gives rise to another crossover from Q ~ N2 to Q ~ N3 for symmetry protected quasi-BIC in finite
grating
of N rods owing to suppression of radiation leakage of quasi-BIC mode from surface of
grating
. As a result, the Q factor of quasi-BIC is determined by residual leakage from ends of
grating
. We show numerically that this leakage can also be suppressed considerably if
grating
is stretched from the ends.
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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk Russia
Russia Institute of Computational Modelling SB RAS, 660036 Krasnoyarsk, Russia
Доп.точки доступа:
Bulgakov, E. N.; Булгаков, Евгений Николаевич; Shadrina, Galina; Sadreev, A. F.; Садреев, Алмаз Фаттахович; Pichugin, K. N.; Пичугин, Константин Николаевич
}
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7.
Bulgakov, E. N.
Precise size sorting of nanoparticles by bound states in the continuum in a dual finite
grating
/ E. Bulgakov, A. Sadreev> // Opt. Lett. - 2023. -
Vol. 48
,
Is. 17
. - P. 4705-4708,
DOI
10.1364/OL.496198. - Cited References: 37. - We acknowledge discussions with K.N. Pichugin. - The work was supported by Russian Science Foundation; grant no. 22-12-00070 . - ISSN 0146-9592. - ISSN 1539-4794
Кл.слова (ненормированные):
Fano resonance
--
Laser beams
--
Optical force
--
Optical lattices
--
Refractive index
--
Resonant modes
Аннотация:
We consider two parallel dielectric gratings (dual
grating
) which support accidental bound states in the continuum (BICs) mostly localized between gratings. As distinctive to true periodical BICs in an infinite dual
grating
, the enveloping intensity of quasi-BICs in a finite dual
grating
behaves as a standing wave. That behavior is a key property to trap nanoparticles into selected cells of the dual
grating
sorted by sizes of nanoparticles dragged by liquid flowing between gratings. For excitation of quasi-BIC with high quality factor by an electromagnetic plane wave with normal incidence and power 1 mW/µm2 we show high efficiency of sorting of nanoparticles by sizes.
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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia
Доп.точки доступа:
Sadreev, A. F.; Садреев, Алмаз Фаттахович; Булгаков, Евгений Николаевич
}
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8.
Unveiling Talbot effect
under Fresnel diffraction at a fork-shaped
grating
/ D. A. Ikonnikov, S. A. Myslivets, N. N. Davletshin [et al.]> // Ann. Phys. (Berlin). - 2023. -
Vol. 535
,
Is. 3
. - Ст. 2200480,
DOI
10.1002/andp.202200480. - Cited References: 31. - The work was supported by the Russian Science Foundation (Grant No. 19-12-00203) . - ISSN 0003-3804. - ISSN 1521-3889
Кл.слова (ненормированные):
fork-shaped gratings
--
optical vortices
--
Talbot effect
--
topological charge
Аннотация:
The near-field effect of diffraction image self-reproduction or self-imaging of a periodic
grating
illuminated by quasi-monochromatic wave is well-known as the Talbot effect. Introducing a dislocation to a periodic structure provides a fork-shaped modulation of the phase/amplitude, which produces discrete diffraction pattern in a far-field consisting of optical vortices. In this paper, Fresnel diffraction at amplitude fork-shaped
grating
is theoretically and experimentally studied. The coexistence of spatial ordering and local violation of translational symmetry of the structure manifests itself in a strict diffraction pattern consisting of optical vortices in the far-field, which is shown to be accompanied by formation of a spatially ordered intensity distribution in the near-field, reminiscent the Talbot carpets for periodic structures. These results demonstrate the first evidence of Talbot effect occurred under light diffraction at fork-shaped gratings, being promising for deep understanding of near-field singular optics phenomena.
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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Доп.точки доступа:
Ikonnikov, D. A.; Иконников, Денис Андреевич; Myslivets, S. A.; Мысливец, Сергей Александрович; Davletshin, N. N.; Давлетшин, Николай Николаевич; Baron, F. A.; Барон, Филипп Алексеевич; Arkhipkin, V. G.; Архипкин, Василий Григорьевич; Vyunishev, A. M.; Вьюнышев, Андрей Михайлович
}
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9.
Near-field evolution of
optical vortices and their spatial ordering behind a fork-shaped
grating
/ D. A. Ikonnikov, S. A. Myslivets, V. G. Arkhipkin, A. M. Vyunishev> // Photonics. - 2023. -
Vol. 10
,
Is. 4
. - Ст. 469,
DOI
10.3390/photonics10040469. - Cited References: 32. - The work is supported by the Russian Science Foundation (grant No. 19-12-00203) . - ISSN 2304-6732
Кл.слова (ненормированные):
fork-shaped
grating
--
optical vortex
--
optical singularity
--
near-field diffraction
Аннотация:
Fork-shaped gratings are periodic structures containing a spatial dislocation known to be used for the production of optical vortices in a far field. Spatial overlapping of diffraction orders in a near field results in complex spatial evolution of optical vortices. In this paper, we report the results of near-field diffraction on fork-shaped gratings with different topological charges and analyze the evolution of specific optical vortices during propagation. Optical vortices have been shown to form two-dimensional well-ordered spatial configurations in specific transverse planes. The locus of points of optical singularities has been shown to form two helical lines twisted around the ±1 diffraction order directions. Our results demonstrate that the spatial behaviour of optical vortices is in close connection with the spatial ordering arising from the Talbot effect. The quantity of optical vortices demonstrates complex spatial dynamics, which includes spatial oscillations and decreasing along the propagation direction. These results provide a foundation towards a deeper understanding of near-field singular optics phenomena.
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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia
Department of Photonics and Laser Technology, Siberian Federal University, 660079 Krasnoyarsk, Russia
Доп.точки доступа:
Ikonnikov, Denis A.; Иконников, Денис Андреевич; Myslivets, S. A.; Мысливец, Сергей Александрович; Arkhipkin, V. G.; Архипкин, Василий Григорьевич; Vyunishev, A. M.; Вьюнышев, Андрей Михайлович
}
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10.
Arkhipkin, V. G.
Control of light-pulse propagation in electromagnetically induced
grating
using additional driving field / V. G. Arkhipkin, S. A. Myslivets, P. S. Pankin> //
Mod. problems of laser phys. : матер. симп. - Новосибирск : ЗАО ИПП "Офсет", 2016. - P. 258
РИНЦ
,
Материалы симпозиума
,
Материалы симпозиума
Доп.точки доступа:
Myslivets, S. A.; Мысливец, Сергей Александрович; Pankin, P. S.; Панкин, Павел Сергеевич; Архипкин, Василий Григорьевич; International symposium and school for young scientist "Modern problems of laser physics"(7 ; )(2016 ; 22.08 - 28.08 ; Novosibirsk); Международный симпозиум и школа для молодых ученых "Современные проблемы лазерной физики"(7 ; )(2016 ; 22.08 - 28.08 ; Новосибирск); Институт лазерной физики Сибирского отделения РАН; Новосибирский государственный университет; Институт спектроскопии РАНМосковский государственный университет им. М.В. Ломоносова; Всероссийский научно-исследовательский институт физико-технических и радиотехнических измерений
Нет сведений об экземплярах (Источник в БД не найден)
}
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11.
Arkhipkin, V. G.
Coherent control of light-pulse propagation in a Raman induced
grating
/ V. G. Arkhipkin, S. A. Myslivets> // J. Opt. - 2017. -
Vol. 19
,
Is. 5
. - Ст. 055501,
DOI
10.1088/2040-8986/aa6498. - Cited References:26. - This work was supported by the Russian Foundation for Basic Research under Grant No. 15-02-03959 and partially by the Siberian Branch of the Russian Academy of Sciences under Complex Program II.2P (0356-2015-0410). . - ISSN 2040-8978. - ISSN 2040-8986
РУБ
Optics
Рубрики:
OPTICS
MEDIA
Кл.слова (ненормированные):
light induced gratings
--
pulse propagation
--
Raman gain
Аннотация:
We study light-pulse propagation in a dynamically controllable periodic structure (
grating
) resulting from Raman interaction of a weak probe pulse with a standing-wave pump and a second control laser field in. N-type four-level atomic media. The
grating
is induced due to periodic spatial modulation of the Raman gain in a standing pump field (Raman gain
grating
). We show that it is possible to control both the probe pulse amplitude and the group velocity of the pulse from subluminal to superluminal by varying the pump or control field. Such a
grating
is of interest for. all-optical switches and transistors.
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Держатели документа:
Kirensky Inst Phys, Fed Res Ctr, KSC SB RAS,50, Akademgorodok, Russia.
Siberian Fed Univ, Lab Nonlinear Opt & Spect, Krasnoyarsk 660079, Russia.
Siberian Fed Univ, Dept Photon & Laser Technol, Krasnoyarsk 660079, Russia.
Доп.точки доступа:
Myslivets, S. A.; Мысливец, Сергей Александрович; Архипкин, Василий Григорьевич; Russian Foundation for Basic Research [15-02-03959]; Siberian Branch of the Russian Academy of Sciences under Complex Program II.2P [0356-2015-0410]
}
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12.
Belyaev, B. A.
Diffraction of electromagnetic waves on a one-dimensional strip conductor
grating
located at the interface between dielectric media / A. Belyaev, V. V. Tyurnev> // Russ. Phys. J. - 2015. -
Vol. 58
,
Is. 5
. - P. 646-657,
DOI
10.1007/s11182-015-0546-1. - Cited References:17. - This work was supported in part by the Ministry of Education and Science of the Russian Federation (Agreement No. 14.607.21.0039). . - ISSN 1064-8887. - ISSN 1573-9228
РУБ
Physics, Multidisciplinary
Рубрики:
TRANSMISSION COEFFICIENTS
MULTILAYER STRUCTURE
BANDPASS-FILTERS
REFLECTION
Кл.слова (ненормированные):
electromagnetic waves
--
dielectric layers
--
strip conductors
--
diffraction
Аннотация:
Analytical formulas are derived for the transmission and reflection coefficients of electromagnetic E- and H-waves incident at an arbitrary angle on a one-dimensional strip conductor
grating
located at the interface between two dielectric media. The feasibility of adjusting the
grating
reflectivity within wide limits by varying its design parameters is demonstrated, which allows these structures to be used in multilayered dielectric bandpass filters.
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Публикация на русском языке
Беляев, Борис Афанасьевич. Дифракция электромагнитных волн на одномерной решетке полосковых проводников, расположенной на границе раздела диэлектрических сред [Текст] / Б. А. Беляев, В. В. Тюрнев // Изв. вузов. Физика : Томский государственный университет, 2015. - Т. 58 № 5. - С. 57-66
Держатели документа:
Russian Acad Sci, Siberian Branch, LV Kirensky Inst Phys, Krasnoyarsk, Russia.
Siberian Fed Univ, Krasnoyarsk, Russia.
MF Reshetnev Siberian State Aerosp Univ, Krasnoyarsk, Russia.
Доп.точки доступа:
Tyurnev, V. V.; Тюрнев, Владимир Вениаминович; Беляев, Борис Афанасьевич; Ministry of Education and Science of the Russian Federation [14.607.21.0039]
}
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13.
Arkhipkin, V. G.
Transmission and reflection spectra of a Raman induced
grating
in atomic media / V. G. Arkhipkin, S. A. Myslivets> // Opt. Spectrosc. - 2015. -
Vol. 119
,
Is. 5
. - P. 770-775,
DOI
10.1134/S0030400X1511003X. - Cited References: 19. - This work was supported by the Russian Foundation for Basic Research, project no. 15-02-03959 . - ISSN 0030-400X
РУБ
Optics + Spectroscopy
Рубрики:
ELECTROMAGNETICALLY INDUCED TRANSPARENCY
OPTICS
Аннотация:
The spectral properties of an electromagnetically induced
grating
that is based on the spatial modulation of the Raman gain in the field of a standing pump wave in a three-level homogeneous medium have been discussed. It has been shown that, by varying the intensity or the frequency of the pump field, one can control the transmission and reflection spectra, while the transmission and reflection coefficients of the probe (Raman) wave can simultaneously be greater than unity. The influence of the nonideality of the standing wave on the spectral characteristics of the
grating
has been studied. © 2015, Pleiades Publishing, Ltd.
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Публикация на русском языке
Архипкин, Василий Григорьевич. Спектры пропускания и отражения рамановской индуцированной решетки в атомных средах [Текст] / В. Г. Архипкин, С. А. Мысливец // Оптика и спектроскопия : Наука, 2015. - Т. 119 № 5. - С. 745-750
Доп.точки доступа:
Myslivets, S. A.; Мысливец, Сергей Александрович; Архипкин, Василий Григорьевич; International Conference “Basic Problems of Optics” (VIII ; October 20–24, 2014 ; St. Petersburg)
}
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14.
Refractory titanium nitride
two-dimensional structures with extremely narrow surface lattice resonances at telecommunication wavelengths / V. I. Zakomirnyi [et al.]> // Appl. Phys. Lett. - 2017. -
Vol. 111
,
Is. 12
. - Ст. 123107,
DOI
10.1063/1.5000726. - Cited References: 54. - This work was supported by the RF Ministry of Education and Science, the State contract with Siberian Federal University for scientific research in 2017–2019. Numerical calculations were performed using the MVS-1000M system at the Institute of Computational Modeling of the Siberian Branch of the Russian Academy of Sciences. . - ISSN 0003-6951
Кл.слова (ненормированные):
Bandwidth
--
Nanoparticles
--
Nanostructures
--
Optical properties
--
Plasmons
--
Q factor measurement
--
Refractory materials
--
Titanium compounds
--
Diffractive
grating
--
Electromagnetic response
--
Localized surface plasmon
--
Low cost fabrication
--
Plasmonic nanoparticle
--
Telecommunication bandwidth
--
Telecommunication wavelengths
--
Two-dimensional structures
--
Titanium nitride
Аннотация:
Regular arrays of plasmonic nanoparticles have brought significant attention over the last decade due to their ability to support localized surface plasmons (LSPs) and exhibit diffractive
grating
behavior simultaneously. For a specific set of parameters (i.e., period, particle shape, size, and material), it is possible to generate super-narrow surface lattice resonances (SLRs) that are caused by interference of the LSP and the
grating
Rayleigh anomaly. In this letter, we propose plasmonic structures based on regular 2D arrays of TiN nanodisks to generate high-Q SLRs in an important telecommunication range, which is quite difficult to achieve with conventional plasmonic materials. The position of the SLR peak can be tailored within the whole telecommunication bandwidth (from ≈ 1.26 μm to ≈ 1.62 μm) by varying the lattice period, while the Q-factor is controlled by changing nanodisk sizes. We show that the Q-factor of SLRs can reach a value of 2 × 103, which is the highest reported Q-factor for SLRs at telecommunication wavelengths so far. Tunability of optical properties, refractory behavior, and low-cost fabrication of TiN nanoparticles paves the way for manufacturing cheap nanostructures with extremely stable and adjustable electromagnetic response at telecommunication wavelengths for a large number of applications.
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Держатели документа:
Institute of Nanotechnology, Spectroscopy and Quantum Chemistry, Siberian Federal University, Krasnoyarsk, Russian Federation
Division of Theoretical Chemistry and Biology, School of Biotechnology, KTH Royal Institute of Technology, Stockholm, Sweden
Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, United States
Institute of Computational Modeling, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Siberian State University of Science and Technology, Krasnoyarsk, Russian Federation
L. V. Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Zakomirnyi, V. I.; Rasskazov, I. L.; Gerasimov, V. S.; Герасимов, Валерий Сергеевич; Ershov, A. E.; Ершов, Александр Евгеньевич; Polyutov, S. P.; Karpov, S. V.; Карпов, Сергей Васильевич
}
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15.
Propagating bound states
in the continuum in dielectric gratings / E. N. Bulgakov [et al.]> // J. Opt. Soc. Am. B. - 2018. -
Vol. 35
,
Is. 6
. - P. 1218-1222,
DOI
10.1364/JOSAB.35.001218. - Cited References: 51 . - ISSN 0740-3224
Кл.слова (ненормированные):
Bound state
--
Dielectric
grating
--
Fourier
--
Variation of Parameters
Аннотация:
We consider propagating bound states in the continuum in dielectric gratings. The gratings consist of a slab with ridges periodically arranged either on top or on both sides of the slab. Based on the Fourier modal approach, we recover the leaky zones above the line of light to identify the geometries of the gratings supporting Bloch bound states propagating in the direction perpendicular to the ridges. Most importantly, it is demonstrated that if a two-sided
grating
possesses either mirror or glide symmetry, the Bloch bound states are stable to variation of parameters as long as the above symmetries are preserved.
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Держатели документа:
Reshetnev Siberian State University of Science and Technology, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Bulgakov, E. N.; Булгаков, Евгений Николаевич; Maksimov, D. N.; Максимов, Дмитрий Николаевич; Semina, P. N.; Skorobogatov, S. A.
}
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16.
Arkhipkin, V. G.
Talbot effect based on a Raman-induced
grating
/ V. G. Arkhipkin, S. A. Myslivets> // Phys. Rev. A. - 2019. -
Vol. 100
,
Is. 6
. - Ст. 06383,
DOI
10.1103/PhysRevA.100.063835. - Cited References: 28. - This work was supported by the Russian Science Foundation (RSF) through Grant No. 19-12-00203. . - ISSN 2469-9926. - ISSN 2469-9934
Аннотация:
We theoretically study the Talbot effect resulting from Raman-induced
grating
based on periodic spatial modulation of the Raman gain and dispersion in the field of a standing pump wave. Features of integer and fractional Talbot effects are demonstrated for one- and two-dimensional (1D and 2D) Raman-induced gratings. It is shown that the intensity of diffraction images can increase due to Raman amplification in the
grating
. Glass-shaped diffraction patterns are demonstrated for 2D gratings. It is also shown that in the vicinity of the Talbot planes there are planes in which the diffraction patterns are spatially compressed and the intensity becomes greater. The results expand the possibility of using the Talbot effect in various applications.
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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia
Department of Photonics and Laser Technology, Siberian Federal University, Krasnoyarsk 660041, Russia
Доп.точки доступа:
Myslivets, S. A.; Мысливец, Сергей Александрович; Архипкин, Василий Григорьевич
}
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17.
Electrically induced anchoring
transition in cholesteric liquid crystal cells with different confinement ratios / V. S. Sutormin [et al.]> // Liq. Cryst. - 2018. -
Vol. 45
,
Is. 8
. - P. 1129-1136,
DOI
10.1080/02678292.2017.1416504. - Cited References: 29. - This work was supported by Russian Foundation for Basic Research (RFBR) [grant number 16-53-00073]. Vitaly S. Sutormin acknowledges financial support from RFBR [grant number 16-32-60036]. . - ISSN 0267-8292
Кл.слова (ненормированные):
Cholesteric
--
ionic surfactant
--
anchoring transition
--
modulated hybrid-aligned cholesteric layer
--
diffraction
grating
Аннотация:
Reorientation of cholesteric liquid crystal induced by the electrically controlled ionic modification of surface anchoring within the cell with confinement ratio exceeding 1 has been studied. The change of homeotropic surface anchoring to the planar one on the electrode-anode substrate under the action of DC voltage causes the formation of the modulated hybrid-aligned cholesteric layer in the cell. Optical texture of the liquid crystal layer with such an orientation structure is the linear periodic stripes. Homogeneity of emerging optical texture depending on the confinement ratio as well as on the prehistory of voltage application has been considered. It has been found that the ionic modification of surface anchoring results in total transformation of the diffraction pattern observed after the laser beam passing through the sample.
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Держатели документа:
Kirensky Institute of Physics, Federal Research Center – Krasnoyarsk Scientific Center, Siberian Branch of Russian Academy of Sciences, Krasnoyarsk, Russia
Institute of Engineering Physics and Radio Electronics, Siberian Federal University, Krasnoyarsk, Russia
Доп.точки доступа:
Sutormin, V. S.; Сутормин, Виталий Сергеевич; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Prishchepa, O. O.; Прищепа, Оксана Олеговна; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич
}
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18.
Belyaev, B. A.
Multilayer bandpass filter-polarizer with stopband extension far beyond twofold center frequency / B. A. Belyaev, V. V. Tyurnev> // Microwave Opt. Technol. Lett. - 2018. -
Vol. 60
,
Is. 3
. - P. 630-634,
DOI
10.1002/mop.31021. - Cited References: 9. - This work was supported by Ministry of Education and Science of the Russian Federation while realizing a complex project to create high-tech production, contract No 03. G25.31.0279. . - ISSN 0895-2477
Перевод заглавия:
Многослойный полосно-пропускающий фильтр-поляризатор с полосой заграждения, простирающейся далеко за двукратную центральную частоту
Кл.слова (ненормированные):
filter
--
frequency selective surface
--
grating
--
multilayer design
--
polarizer
Аннотация:
We propose a multilayer bandpass filter in which every resonator consists of two identical dielectric layers separated by a
grating
of parallel strip conductors. The resonators themselves are separated from each other and from the ambient space by gratings of strip conductors with an axis orthogonal to the axis of the gratings inside the resonators. The proposed filter construction acts at the same time as a polarizer. The device frequency response computed with use of the provided simple formulas is in a good qualitative agreement with numerical electromagnetic analysis of its 3D model.
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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Siberian State Aerospace University, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Tyurnev, V. V.; Тюрнев, Владимир Вениаминович; Беляев, Борис Афанасьевич
}
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