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Найдено документов в текущей БД: 208

    Nonlinear-optical up and down frequency-converting backward-wave metasensors and metamirrors
/ A. K. Popov [et al.] // Proceedings of SPIE - The International Society for Optical Engineering. - 2013. - Vol. 8725. - Ст. 87252E. - P. , DOI 10.1117/12.2015637 . - ISSN 0277-786X
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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Доп.точки доступа:
Popov, A. K.; Попов, Александр Кузьмич; Nefedov, I. S.; Myslivets, S. A.; Мысливец, Сергей Александрович; Shalaev, M. I.; Slabko, V. V.; Слабко, Виталий Васильевич; Micro- and Nanotechnology Sensors, Systems, and Applications, Conference(5 ; Baltimore, MD)(29 April 2013 - 3 May 2013)

    Channel dropping via bound states in the continuum in a system of two nonlinear cavities between two linear waveguides
/ E. N. Bulgakov, K. N. Pichugin, A. F. Sadreev // J. Phys.: Condens. Matter. - 2013. - Vol. 25, No. 39. - Ст. 395304. - P. , DOI 10.1088/0953-8984/25/39/395304 . - ISSN 0953-8984
   Перевод заглавия: Переключение каналов через связанные состояния в континууме в системе
Аннотация: We show that two nonlinear resonant cavities aligned between two parallel waveguides can support self-induced bound states in the continuum (BSCs). These BSCs are symmetrical relative to an inversion of the waveguides and to inversion of the transport axis. Due to this BSCs can drop an incident wave from one waveguide to another with very high efficiency. We show also that the frequency of the efficient channel dropping can be tuned by injecting power. All these results are in good agreement with numerical solutions of the Maxwell equations in a two-dimensional photonic crystal of GaAs rods holding two parallel waveguides and two defects made of a Kerr medium. В© 2013 IOP Publishing Ltd.

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Доп.точки доступа:
Pichugin, K. N.; Пичугин, Константин Николаевич; Sadreev, A. F.; Садреев, Алмаз Фаттахович; Булгаков, Евгений Николаевич

    Pulse ultrasonic investigations of acoustic waves propagation in single-quasicrystalls Ag42In42Yb16
/ P. P. Turchin [et al.] // 12th Int. Conf. on Quasicrystals : Book of abstracts. - 2013. - P.
   Перевод заглавия: Импульсные ультразвуковые исследования распространения акустических волн в моно-квазикристаллическом Ag42In42Yb16


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Доп.точки доступа:
Turchin , P. P.; Zaitsev, A. I.; Зайцев, Александр Иванович; Vasiliev, A. D.; Васильев, Александр Дмитриевич; Nesterov, A. E.; International Conference on Quasicrystals (12 ; 2013 ; Sept. ; 1-6 ; Krakow, Poland)

    Manifestation of magnetic properties in optical spectra of Nd0.5Gd0.5Fe3(BO3)4
: abstract / A. V. Malakhovskii [et al.] // International Symposium "Spin Waves 2013" : Program. Abstracts. - СПб. : Физико-технический институт им. А.Ф.Иоффе РАН, 2013. - P. 150 . - ISBN 978-5-91918-334-1
   Перевод заглавия: Проявление магнитных свойств в оптических спектрах Nd0.5Gd0.5Fe3(BO3)4
Аннотация: Изучена тонкая структура f-f спектров кристалла Nd0.5Gd0.5Fe3(BO3)4 в функции от температуры в области магнитного упорядочения кристалла. Обнаружено, что локальное магнитное упорядочение в возбуждённом состоянии отличается от магнитного упорядочения в основном состоянии.

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Доп.точки доступа:
Malakhovskii, A. V.; Малаховский, Александр Валентинович; Gnatchenko, S. L.; Kachur, I. S.; Piryatinskaya, V. G.; Sukhachev, A. L.; Сухачев, Александр Леонидович; Российская академия наук; Физико-технический институт им. А.Ф. Иоффе РАН; "Spin Waves", International Symposium (2013 ; июнь ; 9-15 ; Санкт-Петербург)

    Electromagnetic waves with a negative group velocity in a randomly inhomogeneous Josephson junction
/ Y. I. Mankov // Phys. Solid State. - 2013. - Vol. 55, Is. 5. - P. 924-929, DOI 10.1134/S1063783413050223 . - ISSN 1063-7834

Аннотация: Electromagnetic waves in a randomly inhomogeneous Josephson junction have been investigated by the averaged Green's function method for a nonmonotonic decay of the correlations of inhomogeneities. Modifications of the spectrum and the decay of these excitations caused by spatial fluctuations of the critical current of the Josephson junction have been studied. The regions of the values of the frequency, the wave number, and the stochastic parameters of the medium, at which the waves have a negative group velocity, have been determined. В© 2013 Pleiades Publishing, Ltd.

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Доп.точки доступа:
Маньков, Юрий Иннокентьевич

    Effect of multiple scattering on the quantum transport of electrons through a magnetic impurity with a single-ion anisotropy
: abstract / V. V. Val'kov, S. V. Aksenov, E. A. Ulanov // Spin Waves 2013, Int. Symp. : Program. Abstracts. - СПб., 2013. - P. 75 . - ISBN 978-5-91918-334-1
   Перевод заглавия: Влияние многократного рассеяния на квантовый транспорт электронов через магнитную примесь с одноионной анизотропией


Материалы конференции


Доп.точки доступа:
Aksenov, S. V.; Аксенов, Сергей Владимирович; Ulanov, E. A.; Вальков, Валерий Владимирович; Российская академия наук; Физико-технический институт им. А.Ф. Иоффе РАН; "Spin Waves", International Symposium (2013 ; июнь ; 9-15 ; Санкт-Петербург)

    Modification of chromium electrochemical coatings by detonation nanodiamonds
/ V. P. Isakov [et al.] // Экстремальные состояния вещества. Детонация. Ударные волны, междунар. конф. : Сб. тез. докл. - Саров, 2013. - P. 392-393



Доп.точки доступа:
Isakov, V. P.; Isakova, V. G.; Исакова, Виктория Гавриловна; Lyamkin, A. I.; Solntsev, A. V.; Gasanov, Z. D.; Российский федеральный ядерный центр - Всероссийский научно-исследовательский институт экспериментальной физики; "Экстремальные состояния вещества. Детонация. Ударные волны", международная конференция (2013 ; 18-22 марта ; Саров); International conference "Extreme states of substance. Detonation. Shock waves" (March 18 - 22, 2013 ; Sarov, Russia); Харитоновские тематические научные чтения (15 ; 2013 ; март ; 18-22 ; Саров)

    Электромагнитные волны с отрицательной групповой скоростью в случайно-неоднородном джозефсоновском переходе
/ Ю. И. Маньков // Физ. тверд. тела. - 2013. - Т. 55, Вып. 5. - С. 850-854

Аннотация: Методом усредненных функций Грина исследованы электромагнитные волны в случайно-неоднородном джозефсоновском переходе при немонотонном спаде корреляций неоднородностей. Изучены модификация спектра и затухание этих возбуждений, обусловленные пространственными флуктуациями критического тока джозефсоновского перехода. Определены области значений частоты, волнового числа и стохастических параметров среды, при которых волны имеют отрицательную групповую скорость.

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Держатели документа:
Институт физики им. Л.В. Киренского СО РАН

Доп.точки доступа:
Man'kov, Yu.I.

    Thermal decay of platinum metal acetylacetonates on the detonation nanodiamond surface
/ V. P. Isakov [et al.] // Экстремальные состояния вещества. Детонация. Ударные волны, междунар. конф. : Сб. тез. докл. - Саров, 2013. - P. 401-402



Доп.точки доступа:
Isakov, V. P.; Isakova, V. G.; Исакова, Виктория Гавриловна; Lyamkin, A. I.; Yunoshev, A. S.; Российский федеральный ядерный центр - Всероссийский научно-исследовательский институт экспериментальной физики; "Экстремальные состояния вещества. Детонация. Ударные волны", международная конференция (2013 ; 18-22 марта ; Саров); International conference "Extreme states of substance. Detonation. Shock waves" (2013 ; march ; 18- 22 ; Sarov, Russia); Харитоновские тематические научные чтения (15 ; 2013 ; март ; 18-22 ; Саров)

    Spin and elastic waves with the random coupling parameter
/ V. A. Ignatchenko, D. S. Polukhin // Diffusion and Defect Data Pt.B: Solid State Phenomena. - 2012. - Vol. 190. - P. 51-54, DOI 10.4028/www.scientific.net/SSP.190.51 . - ISBN 1012-0394. - ISBN 9783037854365
Аннотация: Dynamic susceptibilities (Green's function) in a system of two wave fields of different physical nature connected by the zero-mean random coupling parameter are studied. Magnetoelastic waves in zero-mean magnetostrictive media are considered. It is shown that the Green's functions of the spin G? m(?) and elastic G? u(?) waves at the intersection of the initial dispersion laws have the form of broad single-mode peaks with the fine structure on the tops of these peaks: the narrow resonance on the top of G? m(?) and the narrow antiresonance on the top of G? u(?) For the longwave inhomogeneities the widths of the broad peaks and narrow peaks are determined by the rootmean- square fluctuation and the correlation wave number, respectively. В© (2012) Trans Tech Publications.

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Доп.точки доступа:
Polukhin, D. S.; Полухин, Дмитрий Сергеевич; Игнатченко, Вальтер Алексеевич; Moscow International Symposium on Magnetism(5 ; 2011 ; Aug. ; 21-25 ; Moscow)

    Spectral properties of superlattices with anisotropic inhomogeneities. The transition from 3D to 2D disorder
/ V. A. Ignatchenko, A. V. Pozdnyakov // Diffusion and Defect Data Pt.B: Solid State Phenomena. - 2012. - Vol. 190. - P. 597-600, DOI 10.4028/www.scientific.net/SSP.190.597 . - ISBN 1012-0394. - ISBN 9783037854365
Аннотация: Waves in superlattice (SL) contained inhomogeneities with anisotropic correlation properties are considered. The anisotropy of the correlation during the transition from 3D to 2D disorder is characterized by the parameter ? 1 = k ||/k?-1, where k || and k? are the correlation wave numbers along the axis of the SL and in the plane of the its layers, respectively (r || =k || -1 and r?=k?-1 are the correlation radii). Dependencies of both the dynamic susceptibility and density of states at the continuous transition from the isotropic three-dimensional inhomogeneities (? 1 = 0) to the twodimensional ones (? 1 = -1) have been obtained. В© (2012) Trans Tech Publications.

Scopus


Доп.точки доступа:
Pozdnyakov, A. V.; Поздняков, А.В.; Игнатченко, Вальтер Алексеевич; Moscow International Symposium on Magnetism(5 ; 2011 ; Aug. ; 21-25 ; Moscow)

    Spin waves in multilayers with different magnitudes of the magnetization, exchange, and anisotropy
/ V. A. Ignatchenko, D. S. Tsikalov // Diffusion and Defect Data Pt.B: Solid State Phenomena. - 2012. - Vol. 190. - P. 71-74, DOI 10.4028/www.scientific.net/SSP.190.71 . - ISBN 1012-0394. - ISBN 9783037854365
Аннотация: The spin-wave spectrum in one-dimensional magnon crystals - periodic superlattices (SLs) is investigated for the rectangular and sinusoidal modulation profile of the material parameters. The dependences of band gaps in the spectrum on both the difference of the magnetic parameters in adjacent layers and the ratio of the layer thicknesses are calculated. В© (2012) Trans Tech Publications.

Scopus


Доп.точки доступа:
Tsikalov, D. S.; Цикалов, Денис Сергеевич; Игнатченко, Вальтер Алексеевич; Moscow International Symposium on Magnetism(5 ; 2011 ; Aug. ; 21-25 ; Moscow)

    Peculiarity of the ferromagnetic and spin-wave resonance in exchangecoupled NiFe/X/NiFe three layer structures (X = Ag, Cu, DyCo)
/ R. S. Iskhakov [et al.] // Diffusion and Defect Data Pt.B: Solid State Phenomena. - 2012. - Vol. 190. - P. 459-462, DOI 10.4028/www.scientific.net/SSP.190.459 . - ISBN 1. - ISBN 9783037854365
Аннотация: FMR and SWR spectra of exchange-coupled structures NiFe/Cu/NiFe, NiFe/Ag/NiFe and NiFe/DyCo/NiFe have been investigated. We revealed that the optical satellites of the exchange spin-wave modes are characterized not by the standard Kittle-dependence but by their own resonance field dependence on the mode number: Hr opt(n)?n 5/2. В© (2012) Trans Tech Publications.

Scopus


Доп.точки доступа:
Iskhakov, R. S.; Исхаков, Рауф Садыкович; Stolyar, S. V.; Столяр, Сергей Викторович; Yakovchuk, V.Yu.; Яковчук, Виктор Юрьевич; Chizhik, M. V.; Moscow International Symposium on Magnetism(5 ; 2011 ; Aug. ; 21-25 ; Moscow)

    Bulk plasma waves in a randomly inhomogeneous conductor
/ Yu. I. Mankov // Phys. Solid State. - 2012. - Vol. 54, Is. 7. - P. 1323-1331, DOI 10.1134/S1063783412070268. - Cited References: 27 . - ISSN 1063-7834
РУБ Physics, Condensed Matter

Аннотация: The modification of the spectrum and damping of bulk plasma waves due to three-dimensional random inhomogeneities of the density of a degenerate electron gas in a conductor have been investigated using the averaged Green’s function method. The dependences of the frequency and damping of the averaged plasma waves, as well as the position ν m and width Δν of the peak of the imaginary part of the Fourier trans-form of the averaged Green’s function, on the wave vector k have been determined in the self-consistent approximation, which makes it possible to take into account multiple scattering of plasma waves by inhomogeneities. It has been found that, in the long-wavelength region of the spectrum, the decrease revealed in the frequency of the plasma waves is caused by the inhomogeneities, which agrees qualitatively with the behavior of the position of the peak ν m . In the range of large values of the correlation length of inhomogeneities and small values of k, the damping of the plasma waves tends to zero, whereas the width of the peak Δν remains finite, which is due to the nonuniform broadening. A comparison with the data of numerical calculations has been performed.

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Доп.точки доступа:
Маньков, Юрий Иннокентьевич

    Magnetoelastic resonance in media with the inhomogeneous coupling parameter
/ V. A. Ignatchenko, D. S. Polukhin // Solid State Phenom. : Selected, peer reviewed papers. - 2014. - Vol. 215: Trends in Magnetism: Nanomagnetism (EASTMAG-2013). - P. 105-108DOI 10.4028/www.scientific.net/SSP.215.105. - Cited References: 8 . - ISSN 1662-9779
   Перевод заглавия: Магнитоупругий резонанс в среде с неоднородным параметром связи

Кл.слова (ненормированные):
Elastic waves -- Green's functions -- Inhomogeneities -- Magnetoelastic coupling -- Self-consistent approximation -- Spin waves

Аннотация: The matrix Green's function of coupled spin and elastic waves for media with the 3D inhomogeneities of the coupling parameter is studied. It has been shown that the difference in shapes of the Green's functions for the cases of 1D and 3D inhomogeneities appears only for the sufficiently large correlation wave number of the inhomogeneities. © (2014) Trans Tech Publications, Switzerland.


Доп.точки доступа:
Ovchinnikov, S. G. \ed.\; Овчинников, Сергей Геннадьевич; Samardak, A. \ed.\; Polukhin, D. S.; Полухин, Дмитрий Сергеевич; Игнатченко, Вальтер Алексеевич; Euro-Asian Symposium "Trends in MAGnetism": Nanomagnetism(5 ; 2013 ; sept. ; 15-21 ; Vladivostok)

    Spin-wave spectrum in the sinusoidal superlattice with amplitude and phase inhomogeneities
/ V. A. Ignatchenko, D. S. Tsikalov // Solid State Phenom. : Selected, peer reviewed papers. - 2014. - Vol. 215: Trends in Magnetism: Nanomagnetism (EASTMAG-2013). - P. 385-388, DOI 10.4028/www.scientific.net/SSP.215.385. - Cited References: 6 . - ISSN 978-30383. - ISSN 1662-9779
   Перевод заглавия: Спектр спиновых волн в синусоидальной сверхрешетке с амплитудными и фазовыми неоднородностями

Кл.слова (ненормированные):
DOS -- Dynamic susceptibility -- Inhomogeneities -- Spin waves -- Superlattices

Аннотация: Effects of both the phase and the amplitude inhomogeneities of different dimensionalities on the Green's function and on the one-dimensional density of states of spin waves in the sinusoidal superlattice have been studied. Processes of multiple scattering of waves from inhomogeneities have been taken into account in the self-consistent approximation. © (2014) Trans Tech Publications, Switzerland.


Доп.точки доступа:
Ovchinnikov, S. G. \ed.\; Овчинников, Сергей Геннадьевич; Samardak, A. \ed.\; Tsikalov, D. S.; Цикалов, Денис Сергеевич; Игнатченко, Вальтер Алексеевич; Euro-Asian Symposium "Trends in MAGnetism": Nanomagnetism(5 ; 2013 ; sept. ; 15-21 ; Vladivostok)

    Remote sensing with nonlinear negative-index metamaterials
/ A. K. Popov, S. A. Myslivets // Proceedings of SPIE - The International Society for Optical Engineering. - 2014. - Vol. 9157. - Ст. 91573B, DOI 10.1117/12.2059728. - 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). . - ISSN 978-16284. - ISSN 0277-786X
РУБ Optics + Physics, Applied

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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Доп.точки доступа:
Myslivets, S. A.; Мысливец, Сергей Александрович; International Conference on Optical Fibre Sensors (23 ; 2014 ; Jun. ; 2 - 6 ; Santander, Spain); International conference on optical fibre sensors(23 ; 2014 ; Jun. ; 2-6 ; Santander, Spain)

    Unidirectional amplification and shaping of optical pulses by three-wave mixing with negative phonons
/ A. K. Popov [et al.] // Appl. Phys. A. - 2013. - Vol. 115, Is. 2. - P. 523-529, DOI 10.1007/s00339-013-8078-4. - 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. . - ISSN 0947-8396. - ISSN 1432-0630
РУБ Materials Science, Multidisciplinary + Physics, Applied

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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Держатели документа:
Univ Wisconsin, Stevens Point, WI 54481 USA
Purdue Univ, Birck Nanotechnol Ctr, W Lafayette, IN 47907 USA
Siberian Fed Univ, Krasnoyarsk 660041, Russia
Russian Acad Sci, Inst Phys, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Popov, A. K.; Попов, Александр Кузьмич; Shalaev, M. I.; Шалаев, Михаил Игоревич; Myslivets, S. A.; Мысливец, Сергей Александрович; Slabko, V. V.; Слабко, Виталий Васильевич; 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]

    Nonlinear optics with backward waves: Extraordinary features, materials and applications
[] / A. K. Popov [et al.] // Solid State Phenom. : Selected, peer reviewed papers. - 2014. - Vol. 213: Physics and Technology of Nanostructured Materials II. - P. 222-225, DOI 10.4028/www.scientific.net/SSP.213.222 . - ISSN 1662-9779. - ISSN 9783-0378
Аннотация: Extraordinary properties of nonlinear-optical propagation processes are investigated that involve electromagnetic or elastic waves with negative group velocity. Nanostructured materials that support such waves and prospective unique photonic devices are described. В© (2014) Trans Tech Publications, Switzerland.

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Доп.точки доступа:
Galkin, N. \ed.\; Popov, A. K.; Slabko, V. V.; Слабко, Виталий Васильевич; Shalaev, M. I.; Nefedov, I. S.; Myslivets, S. A.; Мысливец, Сергей Александрович; Asian School-Conference on Physics and Technology of Nanostructured Materials(2 ; 2013 ; Aug. ; 20-27 ; Vladivostok); Азиатская школа-конференция по физике и технологии наноструктурированных материалов(2 ; 2013 ; авг. ; 20-27 ; Владивосток)

    Effect of external electrical field on characteristics of a Lamb wave in a piezoelectric plate
/ S. I. Burkova [et al.] // Acoust. Phys. - 2010. - Vol. 56, Is. 5. - P. 644-650, DOI 10.1134/S1063771010050088. - Cited References: 11. - The work is supported within the Russian Federation Program for Supporting Scientific Schools, grant no. NSh-1011.2008.2. . - ISSN 1063-7710
Аннотация: The influence of a homogeneous electrical field E on the characteristics and propagation conditions of the Lamb wave in a piezoelectric crystalline plate is considered on the basis of the theory of acoustic wave propagation in piezocrystals under the effect of an external electrical field.

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Держатели документа:
[Burkova, S. I.
Zolotova, O. P.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Sorokin, B. P.] Technol Inst Superhard & New Carbon Mat, Troitsk 142190, Moscow Oblast, Russia
[Aleksandrov, K. S.] Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
ИФ СО РАН

Доп.точки доступа:
Burkova, S. I.; Zolotova, O. P.; Sorokin, B. P.; Aleksandrov, K. S.; Александров, Кирилл Сергеевич