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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., Myslivets S. A., Shalaev V. M.
Заглавие : Tunable Narrow-band Filtering, Parametric Amplification and Mirrorless Oscillations in Doped Negative - index Materials
Место публикации : Proceedings of NATO Advance Research Workshop & META'08: Marrakesh - Morocco, 7-10 May 2008. - Paris: LGEP-SUPELE C. - p.580-585
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Slabko V. V., Popov A. K., Myslivets S. A., Rasskazova E. V., Tkachenko V. A., Moskalev A. K.
Заглавие : Transient processes in the parametric interaction of counter-propagating waves
Коллективы : RF Ministry of Education and Science (State Research Task) [2014/71, 2014/K, 3470]; US Army Research Office [W911NF-141-0619]
Место публикации : Quantum Electron.: Turpion, 2015. - Vol. 45, Is. 12. - P.1151-1152. - ISSN 1063-7818, DOI 10.1070/QE2015v045n12ABEH015840. - ISSN 1468-4799(eISSN)
Примечания : Cited References:13. - This work was supported by the RF Ministry of Education and Science (State Research Task 2014-2016, Project Nos 2014/71, 2014/K and 3470) and the US Army Research Office (Grant No. W911NF-141-0619).
Предметные рубрики: LEFT-HANDED METAMATERIALS
NEGATIVE-INDEX
2ND-HARMONIC GENERATION
EXPERIMENTAL-VERIFICATION
OSCILLATOR
REFRACTION
Ключевые слова (''Своб.индексиров.''): transient parametric processes--counter-propagating waves--negative refractive index
Аннотация: We present a comparative analysis of transient processes in media with a negative refractive index for the parametric interaction of co- and counter-propagating waves. The transient time for the interaction of counter-propagating waves is shown to considerably exceed that for the interaction of co- propagating waves. In the case of counter-propagating waves, we present fitting results for the generated wave amplitude as a function of time and for the transient time vs. the amplitude of the pump wave and the length of the medium.
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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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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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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Vyunishev A. M., Arkhipkin V. G., Chirkin A. S.
Заглавие : Theory of noncollinear frequency doubling of transform limited pulses in non-steady-state regime
Место публикации : J. Opt. Soc. Am. B: Optical Society of America, 2016. - Vol. 33, Is. 11. - P.2308-2312. - ISSN 07403224 (ISSN), DOI 10.1364/JOSAB.33.002308
Примечания : Cited References: 22. - Council of the President of the Russian Federation (MK-2908.2015.2); Russian Foundation for Basic Research (RFBR) (15-02-03838); Krasnoyarsk Regional Fund for Science and Technical Activity Support.The authors thank I. V. Timofeev for the fruitful discussions and theoretical support.
Ключевые слова (''Своб.индексиров.''): band structure--frequency doublers--gaussian beams--nonlinear optics--phase matching--analytical expressions--frequency-doubling--interaction geometries--intersection angles--parametric interactions--phase matching conditions--spectral bandwidth--transform-limited pulse--harmonic generation
Аннотация: Noncollinear second-harmonic generation from two ultrashort pulses intersecting in a nonlinear medium is studied in spectral and time domains. We derive analytical expressions for the second-harmonic (SH) amplitude in crystals of finite thickness neglecting diffraction. The contribution from characteristics of the fundamental radiation and interaction geometry to the process is analyzed. In addition, refined phase-matching conditions are obtained. We find that the spectral bandwidth is determined by the intersection angle and can be enlarged. The SH pulse duration can be optimized by varying the fundamental beam size and the intersection angle. It is found that the SH beam excited by a Gaussian fundamental beam becomes elliptical. It is shown that the fundamental pulse duration can be readily characterized with single pulses by means of measuring the ellipticity of the SH beam profile. The approach developed can potentially be used to calculate parametric interactions of fundamental pulses with an arbitrary spectrum. © 2016 Optical Society of America.
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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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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Rautian S. G., Safonov V. P., Chubakov P. A., Shalaev V.M., Shtokman M. I.
Заглавие : Surface-enhanced parametric scattering of light by silver clusters
Место публикации : JETP Letters. - 1988. - Vol. 47, Is. 4. - P.243-246. - ISSN 0021-3640
Примечания : Cited References: 6
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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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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Popov A. K., Myslivets S. A., Slabko V. V., Tkachenko V. A., George T. F.
Заглавие : Shaping light in backward-wave nonlinear hyperbolic metamaterials
Коллективы : U. S. Army Research Office [W911NF-14-1-0619]; Ministry of Education and Science of the Russian Federation [3.6341.2017/6.7]
Место публикации : Photonics. - 2018. - Vol. 5, Is. 2. - Ст.8. - ISSN 2304-6732, DOI 10.3390/photonics5020008
Примечания : Cited References: 46. - Alexander K. Popov acknowledges support by the U. S. Army Research Office under grant number W911NF-14-1-0619. Vitaly V. Slabko acknowledges support by the Ministry of Education and Science of the Russian Federation (project # 3.6341.2017/6.7).
Предметные рубрики: NEGATIVE-INDEX METAMATERIALS
OPTICAL PARAMETRIC OSCILLATOR
Ключевые слова (''Своб.индексиров.''): optical metamaterials--fundamental concepts in photonics--light-matter--interactions at the subwavelength and nanoscale--fundamental--understanding of linear and nonlinear optical processes in novel metamaterials underpinning photonic devices and components--advancing the frontier of nanophotonics with the associated nanoscience and nanotechnology--nanostructures that can serve as building blocks for nano-optical systems--use of nanotechnology in photonics--nonlinear nanophotonics--plasmonics and excitonics--subwavelength components and negative index materials--slowing, store, and processing light pulses--materials for optical sensing, for tunable optical delay lines, for optical buffers, for high extinction optical switches, for novel image processing hardware, and for highly-efficient wavelength converters
Аннотация: Backward electromagnetic waves are extraordinary waves with contra-directed phase velocity and energy flux. Unusual properties of the coherent nonlinear optical coupling of the phase-matched ordinary and backward electromagnetic waves with contra-directed energy fluxes are described that enable greatly-enhanced frequency and propagation direction conversion, parametrical amplification, as well as control of shape of the light pulses. Extraordinary transient processes that emerge in such metamaterials in pulsed regimes are described. The results of the numerical simulation of particular plasmonic metamaterials with hyperbolic dispersion are presented, which prove the possibility to match phases of such coupled guided ordinary and backward electromagnetic waves. Particular properties of the outlined processes in the proposed metamaterial are demonstrated through numerical simulations. Potential applications include ultra-miniature amplifiers, frequency changing reflectors, modulators, pulse shapers, and remotely actuated sensors.
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