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1.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Архипкин, Василий Григорьевич, Мысливец, Сергей Александрович
Заглавие : Влияние электромагнитно индуцированной прозрачности на спектр дефектных мод одномерного фотонного кристалла
Место публикации : Квантовая электроника. - Москва: Федеральное государственное бюджетное учреждение науки Физический институт им. П.Н. Лебедева Российской академии наук, 2009. - Т. 39, № 2. - С. 157-162. - ISSN 0368-7147
Аннотация: Изучен спектр пропускания одномерного фотонного кристалла (ФК) с дефектом из материала, в котором возможна электромагнитно индуцированная прозрачность. Анализ выполнен с учетом пространственной неоднородности взаимодействующих полей в ФК. Установлено, что спектр пропускания такого ФК зависит от пространственного перекрытия дефектных мод, возбуждаемых пробным и управляющим излучениями. Показано, что электромагнитно индуцированная прозрачность может приводить к значительному сужению спектра дефектной моды.
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2.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Jiang, Xingxing, Yang, Y.i., Molokeev M. S., Gong, Pifu, Liang, Fei, Wang, Shuaihua, Liu, Lei, Wu, Xiang, Li, Xiaodong, Li, Yanchun, Wu, Shaofan, Li, Wei, Wu, Yicheng, Lin, Zheshuai
Заглавие : Zero linear compressibility in nondense borates with a "Lu-Ban stool"-like structure
Место публикации : Adv. Mater. - 2018. - Vol. 30, Is. 32. - Ст.1801313. - ISSN 0935-9648, DOI 10.1002/adma.201801313. - ISSN 1521-4095(eISSN)
Примечания : Cited References: 28. - X.J., Y.Y., and M.M. contributed equally to this work. The authors acknowledge Zhuohong Yin for useful discussions. This work was supported by the National Scientific Foundations of China (Grant Nos. 11474292, 51702330, 11611530680, 91622118, and 91622124), Russian Foundation for Basic Research (Grant No. 17-52-53031), the Special Foundation of the Director of Technical Institute of Physics and Chemistry (TIPC), the China "863" project (No. 2015AA034203), key project of Beijing Synchrotron Radiation Facility and the Youth Innovation Promotion Association, CAS (outstanding member for Z.L. and Grant No. 2017035 for X.J.).
Предметные рубрики: MECHANICAL METAMATERIALS
PRESSURE
METABORATE
STRENGTH
Ключевые слова (''Своб.индексиров.''): borates--"lu-ban stool"-like structure--ultraviolet transparency--zero--linear compressibility
Аннотация: Discovering materials that exhibit zero linear compressibility (ZLC) behavior under hydrostatic pressure is extremely difficult. To date, only a handful of ZLC materials have been found, and almost all of them are ultrahard materials with densified structures. Here, to explore ZLC in nondense materials, a structural model analogous to the structure of the “Lu‐Ban stool,” a product of traditional Chinese woodworking invented 2500 years ago, is proposed. The application of this model to borates leads to the discovery of ZLC in AEB2O4 (AE = Ca and Sr) with the unique “Lu‐Ban stool”‐like structure, which can obtain a subtle mechanical balance between pressure‐induced expansion and contraction effects. Coupled with the very wide ultraviolet transparent windows, the ZLC behavior of AEB2O4 may result in some unique but important applications. The applications of the “Lu‐Ban stool” model open a new route for pursuing ZLC materials in nondense structural systems.
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3.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : He B., Sharypov A. V., Sheng J.T., Simon C., Xiao, Min
Заглавие : Two-photon dynamics in coherent Rydberg atomic ensemble
Место публикации : Phys. Rev. Lett.: American Physical Society, 2014. - Vol. 112, Is. 13. - Ст.133606. - ISSN 0031-9007, DOI 10.1103/PhysRevLett.112.133606. - ISSN 1079-7114
Примечания : Cited References: 30. - B. H. and C. S. acknowledge the support by AITF and NSERC. M. X. acknowledges the support in part by NBRPC (Grant No. 2012CB921804) and NSFC (Grant No. 11321063). A. V. S. was supported by RFBR 12-02-31621.
Предметные рубрики: ELECTROMAGNETICALLY INDUCED TRANSPARENCY
PHOTONS
Аннотация: We study the interaction of two photons in a Rydberg atomic ensemble under the condition of electromagnetically induced transparency, combining a semiclassical approach for pulse propagation and a complete quantum treatment for quantum state evolution. We find that the blockade regime is not suitable for implementing photon-photon cross-phase modulation due to pulse absorption and dispersion. However, approximately ideal cross-phase modulation can be realized based on relatively weak interactions, with counterpropagating and transversely separated pulses.
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4.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kuklin A. V., Kuzubov A. A., Kovaleva E. A., Mikhaleva N. S., Tomilin F. N., Lee H., Avramov P. V.
Заглавие : Two-dimensional hexagonal CrN with promising magnetic and optical properties: A theoretical prediction
Место публикации : Nanoscale: Royal Society of Chemistry, 2017. - Vol. 9, Is. 2. - P.621-630. - ISSN 20403364 (ISSN), DOI 10.1039/c6nr07790k
Примечания : Cited References: 76. - We acknowledge the Siberian Supercomputer Center (SSCC) of SB RAS, Novosibirsk; the Institute of Computational Modeling of SB RAS, Krasnoyarsk; the Joint Supercomputer Center of RAS, Moscow; and the ICC of Novosibirsk State University for providing the computing resources. This work was supported by the government contract of the Ministry of Education and Science of the Russian Federation to Siberian Federal University (Grant No. 16.1500.2014/K). P. V. A. acknowledges the Kyungpook National University Research Fund, 2014. N. S. M. acknowledges the Russian Foundation for Basic Research (RFBR 16-32-60003 mol_a_dk).
Ключевые слова (''Своб.индексиров.''): boron nitride--calculations--energy gap--ferromagnetic materials--ferromagnetism--graphene--magnetism--metals--transition metals--transparency--dielectric functions--ferromagnetic orderings--first-principles calculation--half-metallic properties--magnetic and optical properties--optical transparency--spintronics application--transition metal dichalcogenides--optical properties
Аннотация: Half-metallic ferromagnetic materials with planar forms are promising for spintronics applications. A wide range of 2D lattices like graphene, h-BN, transition metal dichalcogenides, etc. are non-magnetic or weakly magnetic. Using first principles calculations, the existence of graphene-like hexagonal chromium nitride (h-CrN) with an almost flat atomically thin structure is predicted. We find that freestanding h-CrN has a 100% spin-polarized half-metallic nature with possible ferromagnetic ordering and a high rate of optical transparency. As a possible method for stabilization and synthesis, deposition of h-CrN on 2D MoSe2 or on MoS2 is proposed. The formation of composites retains the half-metallic properties and leads to the reduction of spin-down band gaps to 1.43 and 1.71 eV for energetically favorable h-CrN/MoSe2 and h-CrN/MoS2 configurations, respectively. Calculation of the dielectric functions of h-CrN, h-CrN/MoSe2 and h-CrN/MoS2 exhibit the high transparency of all three low-dimensional nanomaterials. The honeycomb CrN may be considered as a promising fundamental 2D material for a variety of potential applications of critical importance. © The Royal Society of Chemistry 2017.
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5.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Popov A. K., Myslivets S. A.
Заглавие : Transformable broad-band transparency and amplification in negative-index films
Место публикации : Applied Physics Letters: American Institute of Physics, 2008. - Т. 93, № 19. - С. 191117. - ISSN 0003-6951, DOI 10.1063/1.3028651. - ISSN 1077-3118(eissn)
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6.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Popov A. K., Myslivets S. A., George T. F., Shalaev V. M.
Заглавие : Tailoring transparency of negative-index metamaterials with parametric amplification
Коллективы : International conference on metamaterials, photonic crystals and plasmonics
Место публикации : International Conference on Metamaterials, Photonic Crystals and Plasmonics (META’07): proceeding : Rome 22-24 October 2007/ ed. F. Bilotti and L. Vegni. - 2007. - p.256-258
Примечания : Библиогр.: 11. - This work was supported in part by the ARO through grant W911NF-07-1-0261
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7.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Popov A. K., Myslivets S. A.
Заглавие : Transformable broad-band transparency and amplification in negative-index films
Коллективы :
Место публикации : Appl. Phys. Lett. - 2008. - Vol. 93, Is. 19. - Ст.191117. - ISSN 0003-6951, DOI 10.1063/1.3028651
Примечания : Cited References: 8. - We thank Vladimir Shalaev for valuable discussions. This work was supported by the U.S. Army Research Laboratory and by the U.S. Army Research Office under Grant No. W911NF-0710261.
Предметные рубрики: OPTICAL PARAMETRIC OSCILLATOR
BACKWARD WAVE
METAMATERIALS
Ключевые слова (''Своб.индексиров.''): metamaterials--optical films--refractive index--transparency--optical properties--transparency--control laser fields--frequency domains--metamaterial--optical transparencies--amplification
Аннотация: The possibility to produce laser-induced optical transparency of a metamaterial slab through the entire negative-index frequency domain is shown above a certain control laser field intensity threshold.
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8.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Popov A.K., Myslivets S. A., Shalaev V.M.
Заглавие : Plasmonics: Nonlinear optics, negative phase, and transformable transparency
Коллективы : Plasmonics: Nanoimaging, Nanofabrication, and their Applications V
Место публикации : Proceedings of SPIE - The International Society for Optical Engineering. - 2009. - Vol. 7395. - Ст.73950Z. - ISBN 0277786X (ISSN); 9780819476852 (ISBN), DOI 10.1117/12.824836
Ключевые слова (''Своб.индексиров.''): backward electromagnetic waves--negative-index metamaterials--optical parametric amplification--quantum control--backward electromagnetic waves--control fields--light wave--nanostructured composites--negative group velocity--negative phase--negative-index--negative-index metamaterials--optical energy transfer--optical parametric amplification--optical technique--plasmonic metamaterials--plasmonics--quantum control--cements--electromagnetic wave diffraction--electromagnetic wave scattering--electromagnetic waves--electromagnetism--energy transfer--light--metamaterials--nanophotonics--nonlinear optics--plasmons--transparency--amplification
Аннотация: The feasibilities and specific features of coherent nonlinear-optical energy transfer from control fields to a negativephase signal are studied, and they are found to stem from the backwardness of electromagnetic waves inherent to negative-index metamaterials. Plasmonic metamaterials that possess negative group velocity for light waves promise a revolutionary breakthrough in nanophotonics. However, strong absorption inherent to such metaldielectric nanocomposites imposes severe limitations on the majority of such applications. Herein we show the feasibility and discuss different nonlinear-optical techniques of compensating such losses, producing transparency, amplification and even generation of negative-phase light waves in originally strongly absorbing microscopic samples of plasmonic metal-dielectric nanostructured composites. © 2009 SPIE.
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9.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Jiang, Xingxing, Molokeev M. S., Gong, Pifu, Yang, Y.i., Wang, Wei, Wang, Shuaihua, Wu, Shaofan, Wang, Yingxia, Huang, Rongjin, Li, Laifeng, Wu, Yicheng, Xing, Xianran, Lin, Zheshuai
Заглавие : Near-zero thermal expansion and high ultraviolet transparency in a borate crystal of Zn4B6O13
Коллективы : Special Foundation of the Director of Technical Institute of Physics and Chemistry (TIPC); National Scientific Foundations of China [11474292, 51401224]; China "863" project [2015AA034203]
Место публикации : Adv. Mater.: Wiley-VCH Verlag, 2016. - Vol. 28, Is. 36. - P.7936-7940. - ISSN 0935-9648, DOI 10.1002/adma.201601816. - ISSN 1521-4095(eISSN)
Примечания : Cited References:38. - The authors acknowledge Zhuohong Yin for useful discussion and Dr. Siyang Luo for the help in crystal fabrication. This work was supported by the Special Foundation of the Director of Technical Institute of Physics and Chemistry (TIPC), the National Scientific Foundations of China (Grant 11474292 and 51401224), and China "863" project (No. 2015AA034203).
Предметные рубрики: ZN4O(BO2)6
TETRAHEDRA
BEHAVIOR
RANGE
Аннотация: Intrinsic isotropic near-zero thermal expansion is discovered in borate crystal Zn4B6O13 with high transparency in the ultraviolet region. First-principles calculations demonstrate that the very low thermal expansion originates mainly from the invariability of the solid [B24O48] truncated octahedra that are fixed by the [Zn4O13] clusters in the ZBO structure.
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10.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Arkhipkin V. G., Myslivets S. A.
Заглавие : Narrowing of transmission spectrum of one-dimensional photon crystal using electromagnetically induced transparency
Коллективы : "Modern problems of laser physics", International Symposium, "Современные проблемы лазерной физики", Международный симпозиум
Место публикации : V International Symposium "Modern problems of laser physics": Technical digest : Novosibirsk, Russia, 24-30 August, 2008/ "Modern problems of laser physics", International Symposium (5 ; 2008 ; Aug ; Novosibirsk). - 2008. - p.208-209
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11.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Arkhipkin V.G., Timofeev I.V.
Заглавие : Matched pulses under nonlinear mixing in double-Λ atomic system by Electromagnetically Induced Transparency
Место публикации : Известия высших учебных заведений. Физика. - 2008. - Т. 51, № 10/2. - С. 40-48
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12.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Popov A. K., Myslivets S. A., Gao J. Y., Zhang H. Z., Wellegehausen B.
Заглавие : Inversionless gain in a three-level system driven by a strong field and collisions
Место публикации : Chin. Phys. - 2000. - Vol. 9, Is. 2. - P.124-130. - ISSN 1009-1963
Примечания : Cited References: 45
Предметные рубрики: ELECTROMAGNETICALLY INDUCED TRANSPARENCY
POPULATION-INVERSION
LIGHT AMPLIFICATION
QUANTUM COHERENCE
REFRACTIVE-INDEX
LASER
INTERFERENCE
TRANSITIONS
SODIUM
ATOMS
Аннотация: Inversionless gain in a degenerate three-level system driven by a strong external field and by collisions with a buffer gas is investigated. The mechanism of population distribution in upper laser level, contributed by the collision transfer, as well as by relaxation, induced by pressure of a buffer gas, is discussed in detail. Explicit formulae for analysis of optimal conditions are derived. The idea developed here for the incoherent pump could be generalized to other systems.
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13.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gavrichkov V. A.
Заглавие : Doped Mott-Hubbard materials with a low quasiparticle transparency
Колич.характеристики :8 с
Место публикации : Phys. Rev. B. - 2024. - Vol. 109, Is. 12. - Ст.125139. - ISSN 24699950 (ISSN), DOI 10.1103/PhysRevB.109.125139. - ISSN 24699969 (eISSN)
Примечания : Cited References: 48. - This work has been supported by the grant of the Russian Science Foundation, RSF 22-22-00298
Аннотация: Based on the Wilson's criterion metal/insulator, extended to materials with strong electronic correlations, we have identified a specific class of the materials, which is not associated with their usual classification into Mott-Hubbard and charge transfer dielectrics. The local symmetry of these materials leads to the disappearance of quasiparticle states (so-called first removal or first extra states) in the Hubbard gap. It is especially unusual for doped materials, in which quasiparticles, being charge carriers, can disappear or appear under external factors without the Mott transition being achieved. In this work, we introduce the so-called “quasiparticle transparency”, and provide specific experiments to identify materials with the low quasiparticle transparency. A number of examples of such materials with a spin crossover under high pressure, showing the Jahn-Teller nature, are considered.
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14.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Atuchin V. V., Isaenko L. I., Kesler V. G., Lin Z. S., Molokeev M. S., Yelisseyev A. P., Zhurkov S. A.
Заглавие : Exploration on anion ordering, optical properties and electronic structure in K3WO3F3 elpasolite
Место публикации : J. Solid State Chem. - 2012. - Vol. 187. - P.159-164. - ISSN 0022-4596, DOI 10.1016/j.jssc.2011.12.037
Примечания : Cited References: 50. - This study is partly supported by SB RAS Project No. 34. ZSL acknowledges the funding support of No. 91022036, 11174297, 2010CB630701, and 2011CB922204 in China. Authors also wish to thank V. D. Fokina for microcaloric measurements.
Предметные рубрики: PHASE-TRANSITIONS
CRYSTAL-GROWTH
FERROELECTRIC K3WO3F3
SOLID-STATE
OXYFLUORIDE
FLUORIDE
POLAR
CS
(NH4)(3)MOO3F3
APPROXIMATION
Anion ordering
Chemical routes
Elpasolite
First-priciples calculation
Forbidden band
Low temperatures
Non-linear optical coefficients
Nonlinear optical crystal
Optical transparency
Oxyfluorotungstate
Room temperature
Ключевые слова (''Своб.индексиров.''): oxyfluorotungstate--structure--nonlinear optical crystals--electronic and optical properties--first-principles calculations
Аннотация: Room-temperature modification of potassium oxyfluorotungstate, G(2)-K3WO3F3, has been prepared by low-temperature chemical route and single crystal growth. Wide optical transparency range of 0.3-9.4 mu m and forbidden band gap E-g=4.32 eV have been obtained for G(2)-K3WO3F3 crystal. Meanwhile, its electronic structure has been calculated with the first-principles calculations. The good agreement between the theorectical and experimental results have been achieved. Furthermore, G(2)-K3WO3F3 is predicted to possess the relatively large nonlinear optical coefficients. (C) 2012 Elsevier Inc. All rights reserved.
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15.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Arkhipkin V. G., Manushkin D. V., Timofeev V. P., Timofeev I. V.
Заглавие : Efficient selective excitation in optically thick extensive media by adiabatic population transfer
Коллективы : Conference on High-Power Lasers in Energy Engineering (1999, Nov.; Osaka, Japan)
Место публикации : High-power lasers in energy engineering. Ser. Proceedings of the society of photo-optical instrumentation engineers (SPIE): SPIE-Int. Soc. Optical Engineering, 2000. - Vol. 3886. - P.699-703. - ISBN 0277-786X, DOI 10.1117/12.375171. - ISBN 0-8194-3484-1
Примечания : Cited References: 13
Предметные рубрики: ELECTROMAGNETICALLY INDUCED TRANSPARENCY
MULTILEVEL SYSTEMS
LASER-PULSES
Ключевые слова (''Своб.индексиров.''): adiabatic population transfer--electromagnetically induced transparency--counterintuitive pulse sequence
Аннотация: In this work the feature of spatio-temporal evolution of two partially overlapped short pulses of counterintuitive sequence in a medium of three-level absorbing atoms in conditions of adiabatic transfer of population are investigated. The analytic solution is constructed. It is shown, that selective excitation of two-photon resonant state with a near-unity probability is conserved on the length of medium, which is considerably greater than the absorbtion length of a weak probe pulse in the absence of a coupling pulse at the adjacent transition.
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16.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Popov A.K., Myslivets S.A., Shalaev V.M.
Заглавие : Coherent nonlinear optics and quantum control in negative-index metamaterials
Коллективы : International Workshop on Theoretical and Computational Nano-Photonics
Место публикации : J. Opt. A-Pure Appl. Opt. - 2009. - Vol. 11, Is. 11. - ISSN 1464-4258, DOI 10.1088/1464-4258/11/11/114028
Примечания : Cited Reference Count: 27
Предметные рубрики: LEFT-HANDED METAMATERIALS
2ND-HARMONIC GENERATION
PARAMETRIC OSCILLATOR
3RD-HARMONIC GENERATION
MAGNETIC METAMATERIALS
COMPENSATING LOSSES
BACKWARD WAVE
Ключевые слова (''Своб.индексиров.''): nonlinear optics--metamaterials--coherent optical effects--backward waves--parametric--microamplifiers and oscillators--backward waves--coherent optical effects--metamaterials--microamplifiers and oscillators--nonlinear optics--parametric--backward waves--coherent energy transfer--coherent optical effects--control fields--control optical fields--laser induced--negative refractive index--negative-index--numerical experiments--parametric amplification--phase mismatch--quantum control--absorption--amplification--energy transfer--four wave mixing--metamaterials--optical materials--parametric oscillators--refractive index--transparency--optical parametric oscillators
Аннотация: The extraordinary properties of laser-induced transparency of a negative-index slab and parametric amplification for a backward wave signal are investigated. The effects of the idler absorption and phase mismatch on the amplification of the signal are studied, and the feasibility of ensuring robust transparency for a broad range of control field intensities and slab thicknesses is shown. A particular option consisting of the independent engineering of a strong four-wave mixing response and the negative refractive index is proposed and its specific features are investigated. The feasibility of quantum control over the slab transparency in such a scheme is confirmed through numerical experiments. We thus show opportunities and conditions for the compensation of the strong absorption inherent to plasmonic negative-index metamaterials, and we further show achievable transparency through coherent energy transfer from the control optical field to the negative-index signal.
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17.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bulgakov E. N., Pichugin K. N., Sadreev A. F.
Заглавие : Light induced Josephson like current between two coupled nonlinear cavities coupled with a symmetrically positioned photonic crystal waveguide
Место публикации : J. Phys.: Condens. Matter: IOP PUBLISHING LTD, 2011. - Vol. 23, Is. 6. - Ст.65304. - ISSN 0953-8984, DOI 10.1088/0953-8984/23/6/065304
Примечания : Cited References: 26. - The work was supported by RFBR-grant 09-02-98005-'Siberia' and by RFBR-grant 11-02-00289.
Предметные рубрики: LOCALIZED MODES
BREAKING
CIRCUITS
Ключевые слова (''Своб.индексиров.''): complex amplitude--green function theory--josephson--kerr materials--light intensity--nonlinear cavities--optical cavities--photonic crystal waveguide--optical waveguides--photonic crystals--transparency--waveguides--light transmission
Аннотация: We consider light transmission in a photonic crystal waveguide coupled with two identical nonlinear cavities positioned symmetrically beside the waveguide and coupled with each other. Using Green function theory we show three scenarios for the transmission. The first one inherits the linear case in which the light transmission preserves the symmetry. In the second scenario the symmetry is broken by the light intensities at the cavities. In the third scenario the intensities are equal but the phases of the complex amplitudes are different at the cavities. This results in a Josephson like current between the cavities. The model consideration agrees well with computations of the Poynting current in a photonic crystal waveguide coupled with two optical cavities filled with a Kerr material.
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18.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Baev A. S., Popov A. K.
Заглавие : Sub-Doppler absorption resonances induced by strong radiation
Место публикации : JETP Letters. - 1998. - Vol. 67, Is. 12. - P.1018-1023. - ISSN 0021-3640, DOI 10.1134/1.567785
Примечания : Cited References: 19
Предметные рубрики: INDUCED TRANSPARENCY
Аннотация: New possibilities are demonstrated for eliminating uncompensated Doppler broadening in different types of nonlinear optical processes by means of atomic coherence effects in strong electromagnetic fields are demonstrated. (C) 1998 American Institute of Physics.
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19.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Arkhipkin V. G., Myslivets S. A.
Заглавие : Transmission and reflection spectra of a Raman induced grating in atomic media
Коллективы : International Conference “Basic Problems of Optics” (VIII; October 20–24, 2014; St. Petersburg)
Место публикации : Opt. Spectrosc.: MAIK Nauka-Interperiodica / Springer, 2015. - Vol. 119, Is. 5. - P.770-775. - ISSN 0030-400X, DOI 10.1134/S0030400X1511003X
Примечания : Cited References: 19. - This work was supported by the Russian Foundation for Basic Research, project no. 15-02-03959
Предметные 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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20.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Arkhipkin V. G., Myslivets S. A.
Заглавие : Transmission and reflection spectra of a photonic crystal with a Raman defects
Место публикации : J. Exp. Theor. Phys.: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2011. - Vol. 111, Is. 6. - P898-906. - ISSN 1063-7761, DOI 10.1134/S1063776110120022
Примечания : Cited References: 37. - This work was supported by the Council of the President of the Russian Federation for Support of Young Scientists and Leading Scientific Schools (project no. NSh-7810.2010.3), the Presidium of the Russian Academy of Sciences (project no. 27.1), the Ministry of Education and Science of the Russian Federation (state contract no. 02.740.11.0220), and the Siberian Branch, Russian Academy of Sciences (integration project no. 5).
Предметные рубрики: ELECTROMAGNETICALLY INDUCED TRANSPARENCY
SLOW-LIGHT
NONLINEAR OPTICS
MICROCAVITIES
LASERS
AMPLIFIER
MODES
Ключевые слова (''Своб.индексиров.''): group velocities--high frequency hf--microwatts--nonlinear refractive index--one dimensional photonic crystal--probe field--pump intensities--raman gain--raman resonances--reflection spectra--spectral position--three level atoms--transmission spectrums--defects--dispersion (waves)--probes--pumping (laser)--pumps--refractive index--resonance--photonic crystals
Аннотация: Features of Raman gain of probe radiation in three-level atoms placed in a defect of a one-dimensional photonic crystal in the presence of laser radiation (pump) at an adjacent high-frequency transition have been theoretically investigated. It has been shown that there is a pump intensity range where narrow peaks (resonances) simultaneously appear in the transmission and reflection spectra of the probe field. Beyond this region, the peak in the transmission spectrum is transformed to a narrow dip. The spectral position of these peaks is determined by the Raman resonance and the transmittance and reflectance can be larger than unity at pump intensities from several microwatts per square centimeter to several tens of milliwatts per square centimeter. The nature of narrow peaks is due to a sharp dispersion of a nonlinear refractive index near the Raman resonance; this dispersion is responsible for a strong decrease in the group velocity of probe radiation. The proposed scheme makes it possible to obtain controlled ultranarrow resonances in the transmission and reflection spectra of the photonic crystal.
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