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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Popov A. K., Nefedov I. S., Myslivets S. A., Shalaev M. I., Slabko V. V.
Заглавие : Nonlinear-optical up and down frequency-converting backward-wave metasensors and metamirrors
Коллективы : Micro- and Nanotechnology Sensors, Systems, and Applications, Conference
Место публикации : Proceedings of SPIE - The International Society for Optical Engineering/ Micro- and Nanotechnology Sensors, Systems, and Applications, Conference (5 ; Baltimore, MD) (29 April 2013 - 3 May 2013). - 2013. - Vol. 8725. - Ст.87252E. - P. - ISSN 0277-786X, DOI 10.1117/12.2015637
Ключевые слова (''Своб.индексиров.''): backward electromagnetic waves--infrared nonlinear optical microsensors--negativeindex metamaterials--optical frequency up-conversion and parametric amplification--optical remote sensing--backward waves--frequency-conversion process--negative-index--non-linear optical--novel materials--optical remote sensing--parametric amplification--short-pulse--electromagnetic waves--frequency converters--nanotechnology--natural frequencies--optical materials--sensors--nonlinear optics
Аннотация: A concept of a family of unique backward-wave photonic devices, such as frequency up and down converting nonlinear-optical mirrors, sensors, modulators, filters and amplifiers is proposed. Novel materials are considered, which support coexistence of ordinary and backward waves and thus enable enhanced nonlinear-optical frequency-conversion processes. Particular properties of short-pulse regime are investigated. В© 2013 SPIE.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Popov A. K., Myslivets S. A., Shalaev M. I., Slabko V. V.
Заглавие : Photonic amplification and switching through nonlinear coupling with negative phonons
Коллективы : International Conference on Photonics in Switching (6; 2012 ; Sept ; 11-14; Ajaccio, France)
Место публикации : Int. Conf. Phot. Switch., PS 2012. - 2012. - Ст.6608287. - P. - ISBN 9782912328618 (ISBN)
Ключевые слова (''Своб.индексиров.''): extraordinary stimulated raman scattering--negative group velocity--nonlinear optical wave mixing--optical phonos--photonic components and devices
Аннотация: A family of switching photonic devices and amplifiers are proposed which mimic and utilize extraordinary coherent nonlinear-optical frequency conversion processes commonly attributed to plasmonic metamaterials. В© 2012 SEE.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Popov A. K., Shalaev M. I., Myslivets S. A., Slabko V. V., Nefedov I. S.
Заглавие : Enhancing coherent nonlinear-optical processes in nonmagnetic backward-wave materials
Коллективы : International conference on metamaterials, photonic crystals and plasmonics
Место публикации : Appl. Phys. A: Springer, 2012. - Vol. 109, Is. 4. - P.835-840. - ISSN 0947-8396, DOI 10.1007/s00339-012-7390-8
Примечания : Cited References: 35. - This work was supported in part by the U.S. National Science Foundation under Grant No. ECCS-1028353, by the US Air Force Office of Scientific Research under Grant No. FA9550-12-1-298; by the Presidium of the Russian Academy of Sciences under Project No. 24.31, by the Ministry of Science under Federal Research Program No. 14.V37.21.0730 and by the Siberian Division of the Russian Academy of Sciences and Siberian Federal University under Integration Project No. 101; and by the Academy of Finland and Nokia through the Center-of-Excellence program.
Предметные рубрики: NEGATIVE-INDEX METAMATERIALS
LEFT-HANDED METAMATERIALS
2ND-HARMONIC GENERATION
PARAMETRIC AMPLIFICATION
COMPENSATING LOSSES
OSCILLATOR
Аннотация: Novel concepts of nonlinear-optical (NLO) photonic metamaterials (MMs) are proposed. They concern with greatly enhanced coherent NLO energy exchange between ordinary and backward waves (BWs) through the frequency-conversion processes. Two different classes of materials which support BWs are considered: crystals that support optical phonons with negative group velocity and MMs with specially engineered spatial dispersion. The possibility to replace plasmonic NLO MMs enabling magnetic response at optical frequencies, which are very challenging to engineer, by the ordinary readily available crystals, are discussed. The possibility to mimic extraordinary NLO frequency-conversion propagation processes attributed to negative-index MMs (NIMs) is shown in some of such crystals, if optical phonons with negative group velocity and a proper phase-matching geometry are implemented. Here, optical phonons are used as one of the coupled counterparts instead of backward electromagnetic waves (BEMWs). The appearance of BEMWs in metaslabs made of carbon nanotubes, the possibilities and extraordinary properties of BW second harmonic generation in such MMs is another option of nonmagnetic NIMs, which is described too. Among the applications of the proposed photonic materials is the possibility of creation of a family of unique BW photonic devices such as frequency doubling metamirror and Raman amplifiers with greatly improved efficiency.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Popov A. K., Myslivets S. A.
Заглавие : Remote sensing with nonlinear negative-index metamaterials
Коллективы : International conference on optical fibre sensors , International Conference on Optical Fibre Sensors (23; 2014 ; Jun. ; 2 - 6; Santander, Spain)
Место публикации : Proceedings of SPIE - The International Society for Optical Engineering: SPIE-Int. Soc. Optical Engineering, 2014. - Vol. 9157. - Ст.91573B. - ISSN 978-162841175-1, DOI 10.1117/12.2059728. - ISSN 0277-786X
Примечания : Cited References: 15. - This work was supported in parts by the Air Force Office of Scientific Research (Grant No FA950-12-1-298), by the National Science Foundation (Grant No ECCS-1346547) and by the Presidium of the Siberian Branch of the Russian Academy of Sciences (Grants No. 43 and No. 101).
Предметные рубрики: PARAMETRIC AMPLIFICATION
2ND-HARMONIC GENERATION
Ключевые слова (''Своб.индексиров.''): optical remote sensing--optical frequency up-conversion and parametric amplification--negative refractive index metamaterials--backward electromagnetic waves--infrared nonlinear optical microsensors
Аннотация: A concept of the remotely actuated and interrogated four-wave mixing photonic sensor, which employs the negative-index photonic materials, is described. Unique electromagnetic properties of such a metamaterial enable enhancement of frequency conversion and redirection of the signals which carry important information for environmental probing. Four-wave mixing process allows for independent engineering of resonantly enhanced optical nonlinearities and negative refractive index. © 2014 SPIE.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Popov A. K., Shalaev M. I., Myslivets S. A., Slabko V. V.
Заглавие : Unidirectional amplification and shaping of optical pulses by three-wave mixing with negative phonons
Коллективы : US Air Force Office of Scientific Research [FA950-12-1-298]; US National Science Foundation [ECCS-1028353]; Presidium of the Russian Academy of Sciences [24-31]; Russian Federal Program on Science, Education and Innovation [14.A18.21.1942]
Место публикации : Appl. Phys. A: Springer, 2013. - Vol. 115, Is. 2. - P.523-529. - ISSN 0947-8396, DOI 10.1007/s00339-013-8078-4. - ISSN 1432-0630
Примечания : Cited References: 32. - This work was supported in parts by the US Air Force Office of Scientific Research under Grant No. FA950-12-1-298, by the US National Science Foundation under Grant No. ECCS-1028353, by the Presidium of the Russian Academy of Sciences under Grant No. 24-31 and by the Russian Federal Program on Science, Education and Innovation under Grant No. 14.A18.21.1942.
Предметные рубрики: LEFT-HANDED METAMATERIALS
2ND-HARMONIC GENERATION
INDEX METAMATERIALS
NONLINEAR OPTICS
PARAMETRIC AMPLIFICATION
COMPENSATING LOSSES
BACKWARD WAVES
OSCILLATOR
CRYSTALS
Аннотация: A possibility to greatly enhance frequency-conversion efficiency of stimulated Raman scattering is shown by making use of extraordinary properties of three-wave mixing of ordinary and backward waves. Such processes are commonly attributed to negative-index plasmonic metamaterials. This work demonstrates the possibility to replace such metamaterials that are very challenging to engineer by readily available crystals which support elastic waves with contra-directed phase and group velocities. The main goal of this work was to investigate specific properties of indicated nonlinear optical process in short-pulse regime and to show that it enables elimination of fundamental detrimental effect of fast damping of optical phonons on the process concerned. Among the applications is the possibility of creation of a family of unique photonic devices such as unidirectional Raman amplifiers and femtosecond pulse shapers with greatly improved operational properties.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Popov A. K., Shalaev M. I., Myslivets S. A., Slabko, V. V.
Заглавие : Unidirectional Amplification and Shaping of Optical Pulses by Three-Wave Mixing with Negative Phonons
Коллективы : International Conference on Metamaterials, Photonic Crystals and Plasmonics
Место публикации : The 4th International Conference on Metamaterials, Photonic Crystals and Plasmonics (META’13): Proceedings. - 2013. - P.35-40
Примечания : Библиогр.: 30 назв.
Аннотация: A possibility to greatly enhance frequency-conversion efficiency of stimulated Raman scattering is shown by making use of extraordinary properties of three-wave mixing of ordinary and backward waves. Such processes are commonly attributed to negative-index plasmonic metamaterials. This work demonstrates the possibility to replace such metamaterials that are very challenging to engineer by readily available crystals which support elastic waves with contradirected phase and group velocities. The main goal of this work is to investigate specific properties of indicated nonlinear optical process in short pulse regime and to show that it enables elimination of fundamental detrimental effect of fast damping of optical phonons on the process concerned. Among the applications is the possibility of creation of a family of unique photonic devices such as unidirectional Raman amplifiers and femtosecond pulse shapers with greatly improved operational properties.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Isaenko L. I., Yelisseyev A. P., Lobanov S. I., Krinitsin P. G., Molokeev M. S.
Заглавие : Structure and optical properties of Li2Ga2GeS6 nonlinear crystal
Коллективы : Russian Foundation of Basic Research [15-02-03408a]
Место публикации : Opt. Mater.: Elsevier Science, 2015. - Vol. 47. - P.413-419. - ISSN 0925-3467, DOI 10.1016/j.optmat.2015.06.014
Примечания : Cited References:23. - This work was supported by the Russian Foundation of Basic Research (Grant No. 15-02-03408a)
Предметные рубрики: PHASE-MATCHING PROPERTIES
MID-IR
PARAMETRIC AMPLIFICATION
GENERATION
LiGaS2
GROWTH
DAMAGE
Ga
Te
Se
Ключевые слова (''Своб.индексиров.''): li2ga2ges6--structure--absorption--raman--luminescence--excitons
Аннотация: Structure and optical properties of new nonlinear crystal - Li2Ga2GeS6 single crystal of optical quality, grown by the Bridgman technique were studied. The data on transmission, Raman scattering, luminescence emission, excitation and thermal quenching as well as thermostimulated luminescence are presented. Fundamental absorption edge is determined by the direct allowed electronic transitions: The values of optical band gap are estimated. Absorption band at 8.0 mu m is due to S-S vibrations. Features in photoluminescence spectra are associated with excitons: both free (narrow line at 371 nm) and self-trapped ones (broad bands at 596, 730 and 906 nm). Spontaneous emission in the 80-170 K range, both at crystal heating and cooling, is typical of pyroelectrics: This confirms the absence of symmetry center in Li2Ga2GeS6 and an opportunity of laser frequency nonlinear conversion. (C) 2015 Elsevier B.V. All rights reserved.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Popov A. K., Myslivets S. A.
Заглавие : Nonlinear-optical frequency-doubling metareflector: pulsed regime
Место публикации : Appl. Phys. A: Springer, 2016. - Vol. 122, Is. 1. - P.1-6. - ISSN 09478396 (ISSN), DOI 10.1007/s00339-015-9534-0
Примечания : Cited References: 20. - This material is based upon work supported in part by the US Army Research Laboratory and the US Army Research Office under Grant Number W911NF-14-1-0619, by the National Science Foundation under Grant Number ECCS-1346547 and by the Russian Foundation for Basic Research under Grant RFBR 15-02-03959A. We thank I. S. Nefedov, A. E. Boltasseva, and V. M. Shalaev for inspiring inputs.
Предметные рубрики: NEGATIVE-INDEX METAMATERIALS
LEFT-HANDED METAMATERIALS
2ND-HARMONIC GENERATION
PARAMETRIC AMPLIFICATION
Аннотация: The properties of backward-wave second-harmonic metareflector operating in pulse regime are investigated. It is made of metamaterial which enables phase matching of contra-propagating fundamental and second-harmonic waves. References are given to the works that prove such a possibility. Physical principles underlying differences in the proposed and standard settings as well as between continuous-wave and pulsed regimes are discussed. Pulsed regime is more practicable and has a broader scope of applications. A set of partial differential equations which describe such a reflector with the account for losses are solved numerically. It is shown that unlike second-harmonic generation in standard settings, contra-propagating pulse of second harmonic may become much longer than the incident fundamental one and the difference grows with decrease in the input pulse length as compared to thickness of the metaslab. The revealed properties are important for applications and may manifest themselves beyond the optical wavelength range.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Popov, A. K., Myslivets S. A.
Заглавие : Second harmonic generation and pulse shaping in positively and negatively spatially dispersive nanowaveguides: comparative analysis
Коллективы : U. S. Army Research Laboratory; U. S. Army Research Office [W911NF-14-1-0619]; National Science Foundation [ECCS-1346547]; Russian Foundation for Basic Research [RFBR 15-02-03959A], Optical wave and waveguide theory and numerical modelling workshop (23th; Apr. 17 - Apr. 18, 2015; London, England)
Место публикации : Opt. Quantum Electron.: Springer, 2016. - Vol. 48, Is. 2. - Ст.143. - ISSN 0306-8919, DOI 10.1007/s11082-016-0416-2. - ISSN 1572-817X(eISSN)
Примечания : Cited References:18. - This material is based upon work supported in part by the U. S. Army Research Laboratory and the U. S. Army Research Office under grant number W911NF-14-1-0619, by the National Science Foundation under grant number ECCS-1346547 and by the Russian Foundation for Basic Research under grant RFBR 15-02-03959A. We thank I. S. Nefedov, A. E. Boltasseva and V. M. Shalaev for inspiring inputs.
Предметные рубрики: LEFT-HANDED METAMATERIALS
PARAMETRIC AMPLIFICATION
INDEX METAMATERIALS
Ключевые слова (''Своб.индексиров.''): metamaterials--nonlinear optics--backward electromagnetic waves
Аннотация: Comparative analysis of second harmonic generation in ordinary and backward-wave settings is presented. Extraordinary properties of frequency doubling nonlinear optical reflectivity and pulse shaping through phase matching of ordinary and backward electromagnetic waves in the nanowaveguides with mixed negative/positive spatial dispersion is demonstrated with numerical simulations.
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Popov A. K., Myslivets S. A., Shalaev V. M.
Заглавие : Coherent nonlinear-optical energy transfer and backward-wave optical parametric generation in negative-index metamaterials
Место публикации : Physica B: ELSEVIER SCIENCE BV, 2010. - Vol. 405: 8th International Conference on Electrical Transport and Optical Properties of Inhomogeneous Media (JUN 07-12, 2009, Rethymnon, GREECE), Is. 14. - P2999-3002. - ISSN 0921-4526, DOI 10.1016/j.physb.2010.01.022
Примечания : Cited References: 32
Предметные рубрики: LEFT-HANDED METAMATERIALS
2ND-HARMONIC GENERATION
3RD-HARMONIC GENERATION
MAGNETIC METAMATERIALS
COMPENSATING LOSSES
OSCILLATOR
AMPLIFICATION
Ключевые слова (''Своб.индексиров.''): negative-index metamaterials--backward electromagnetic waves--resonant four-wave mixing and optical parametric amplification--quantum control--backward electromagnetic waves--negative-index metamaterials--quantum control--resonant four-wave mixing and optical parametric amplification--negative-index--negative-index metamaterials--optical parametric amplification--quantum control--amplification--cements--control theory--electromagnetic wave diffraction--electromagnetic wave scattering--electromagnetic waves--electromagnetism--energy transfer--metamaterials--quantum theory--four wave mixing
Аннотация: The feasibility of all-optically tailored transparency of the negative-index slab, its extraordinary dependence on the intensity of the control field, absorption indices and phase-matching of the parametrically coupled counter-propagating waves is numerically simulated. (C) 2010 Elsevier B.V. All rights reserved.
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11.

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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12.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : SANDALOV I. S., PODMARKOV A. N.
Заглавие : THE AMPLIFICATION OF THE KONDO EFFECT IN NORMAL METALS BY A MAGNETIC-FIELD
Разночтения заглавия :авие SCOPUS: The amplification of the Kondo effect in normal metals by a magnetic field
Место публикации : JOURNAL OF PHYSICS F-METAL PHYSICS: IOP PUBLISHING LTD, 1986. - Vol. 16, Is. 12. - P2153-2166. - ISSN 0305-4608, DOI 10.1088/0305-4608/16/12/023
Примечания : Cited References: 17
Ключевые слова (''Своб.индексиров.''): electrons - scattering--conduction electron--kondo effect--metals and alloys
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13.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Arkhipkin V. G., HELLER Y. I.
Заглавие : Radiation amplification without population-inversion at transitions to autoionizing states
Место публикации : Phys. Lett. A. - 1983. - Vol. 98, Is. 1-2. - P.12-14. - ISSN 0375-9601, DOI 10.1016/0375-9601(83)90533-9
Примечания : Cited References: 9
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14.

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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15.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : NESTEROV A. I., Ovchinnikov S. G.
Заглавие : ACOUSTIC-WAVE AMPLIFICATION IN FAST CRYSTALLIZATION
Место публикации : Fiz. Tverd. Tela: MEZHDUNARODNAYA KNIGA, 1988. - Vol. 30, Is. 1. - P184-186. - ISSN 0367-3294
Примечания : Cited References: 14
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16.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Slabko V. V., Popov A. K., Tkachenko V. A., Myslivets S. A.
Заглавие : Three-wave mixing of ordinary and backward electromagnetic waves: Extraordinary transients in the nonlinear reflectivity and parametric amplification
Место публикации : Opt. Lett.: Optical Society of America, 2016. - Vol. 41, Is. 17. - P.3976-3979. - ISSN 01469592 (ISSN), DOI 10.1364/OL.41.003976
Ключевые слова (''Своб.индексиров.''): amplification--circular waveguides--electromagnetic waves--mixing--nonlinear optics--phase matching--reflection--backward waves--energy fluxes--non-linear reflectivity--optical parametric amplification--parametric amplification--three wave mixing--transient process--optical parametric amplifiers
Аннотация: Three-wave mixing of ordinary and backward electromagnetic waves in a pulsed regime is investigated in the metamaterials that enable the coexistence and phase-matching of such waves. It is shown that the opposite direction of phase velocity and energy flux in backward waves gives rise to extraordinary transient processes due to greatly enhanced optical parametric amplification and frequency up- and down-shifting nonlinear reflectivity. The differences are illustrated through comparison with the counterparts in ordinary, co-propagating settings. © 2016 Optical Society of America.
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17.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Popov A. K., Myslivets S. A.
Заглавие : Generation, amplification, frequency conversion, and reversal of propagation of THz photons in nonlinear hyperbolic metamaterial
Место публикации : Opt. Lett.: Optical Society of America, 2017. - Vol. 42, Is. 20. - P.4151-4154. - ISSN 01469592 (ISSN), DOI 10.1364/OL.42.004151
Примечания : Cited References: 13. - Army Research Office (ARO) (W911NF-14-1-0619); Russian Foundation for Basic Research (RFBR) (15-02-03959A). The authors thank I. S. Nefedov for helpful discussions.
Ключевые слова (''Своб.индексиров.''): carbon--metamaterials--optical frequency conversion--photons--terahertz waves--yarn--directed energy--electromagnetic modes--entangled photons--nonlinear hyperbolic--optical parametric amplification--proof of principles--three wave mixing--thz photon--optical parametric amplifiers
Аннотация: We propose metamaterial (MM) that supports a mixture of three or more normal and backward electromagnetic modes with equal co-directed phase velocities and mutually contra-directed energy fluxes. This enables extraordinary three-wave mixing, greatly enhanced optical parametric amplification, and frequency-changing generation of entangled photons in the reflection direction. Proof-of-principle numerical simulation of such processes is presented based on the particular example of the wave-guided terahertz waves contra-propagating in the MM made of carbon nanotubes.
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18.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Tkachenko V. A., Tsipotan A. S. , Myslivets S. A., Slabko V. V., Popov A. K.
Заглавие : Effects of losses and phase mismatch on transient processes in optical Parametric amplification through three-wave mixing of ordinary and backward electromagnetic waves
Коллективы : Progress in Electromagnetics Research Symposium
Место публикации : Progr. Electromag. Res. Symp. (PIERS): Abstracts. - 2017. - P. 933-934
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19.

Вид документа : Статья из сборника (выпуск монографической серии)
Шифр издания :
Автор(ы) : Tkachenko, Viktor A., Tsipotan, Aleksey S., Myslivets S. A., Slabko, Vitaly V., Popov A. K.
Заглавие : Effects of losses and phase mismatch on transient processes in optical parametric amplification through three-wave mixing of ordinary and backward electromagnetic waves
Коллективы : Progress in Electromagnetics Research Symposium , Ministry of Education and Science of the Russian Federation [3.6341.2017/VU]; Russian Foundation for Basic Research (RFBR) [16-32-00129]; Government of Krasnoyarsk Territory [16-42-240410p_a]; Army Research Office (ARO) [W911NF-14-1-0619]; RFBR
Место публикации : Progress in Electromagnetics Research Symposium - Fall: IEEE, 2017. - P.720-723. - , DOI 10.1109/PIERS-FALL.2017.8293229
Примечания : Cited References:8. - This work was supported in parts by the Ministry of Education and Science of the Russian Federation (Grant 3.6341.2017/VU), by the Russian Foundation for Basic Research (RFBR) (Grant 16-32-00129), by the RFBR and the Government of Krasnoyarsk Territory (Grant 16-42-240410p_a), and by the Army Research Office (ARO) (Grant W911NF-14-1-0619).
Предметные рубрики: NEGATIVE-INDEX METAMATERIALS
2ND-HARMONIC GENERATION
OSCILLATOR
Аннотация: Three-wave mixing of ordinary electromagnetic waves and the waves with contra-directed phase and group velocities in the pulsed regimes is shown to be accompanied by unusual transient processes. We have investigated how attenuation and phase mismatch of the coupled waves in the metamaterials change the properties of parametric amplification and the threshold intensity of the pump wave which is of critical importance.
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20.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Шабанов, Александр Васильевич, Коршунов, Михаил Анатольевич, Буханов, Евгений Романович
Заглавие : Особенности усиления электромагнитного поля и увеличение плотности фотонных состояний в растительных фотонно-кристаллических структурах
Место публикации : Комп. оптика. - 2019. - Т. 43, № 2. - С. 231-237. - ISSN 0134-2452, DOI 10.18287/2412-6179-2019-43-2-231-237; Comput. Opt. - ISSN 2412-6179(eISSN)
Примечания : Библиогр.: 29
Предметные рубрики: BLUE IRIDESCENCE
LIGHT
COLOR
PULSE
BAND
Аннотация: Проведены расчёты с использованием метода трансфер матриц одномерных фотонных кристаллов с низким контрастом и разнопериодными асимметричными структурами. Такие структуры были найдены во многих растениях. При состыковке двух последовательно соединённых подрешёток с разными периодами отмечается увеличение амплитуды электромагнитного поля и плотности фотонных состояний внутри структуры и их изменение в зависимости от асимметрии толщин подрешёток.Calculations were performed using the transfer matrix of one-dimensional photonic crystals with low contrast and asymmetric structures of different periods. Such structures have been found in many plants. When joining two successively connected sublattices with different periods, an increase is observed in the amplitude of the electromagnetic field and the density of photon states inside the structure, and their change depends on the asymmetry of the thickness of the sublattices.
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