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1.


    Arkhipkin, V. G.
    Coherent control of light-pulse propagation in a Raman induced grating / V. G. Arkhipkin, S. A. Myslivets // J. Opt. - 2017. - Vol. 19, Is. 5. - Ст. 055501, DOI 10.1088/2040-8986/aa6498. - Cited References:26. - This work was supported by the Russian Foundation for Basic Research under Grant No. 15-02-03959 and partially by the Siberian Branch of the Russian Academy of Sciences under Complex Program II.2P (0356-2015-0410). . - ISSN 2040-8978. - ISSN 2040-8986
РУБ Optics
Рубрики:
OPTICS
   MEDIA

Кл.слова (ненормированные):
light induced gratings -- pulse propagation -- Raman gain
Аннотация: We study light-pulse propagation in a dynamically controllable periodic structure (grating) resulting from Raman interaction of a weak probe pulse with a standing-wave pump and a second control laser field in. N-type four-level atomic media. The grating is induced due to periodic spatial modulation of the Raman gain in a standing pump field (Raman gain grating). We show that it is possible to control both the probe pulse amplitude and the group velocity of the pulse from subluminal to superluminal by varying the pump or control field. Such a grating is of interest for. all-optical switches and transistors.

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Держатели документа:
Kirensky Inst Phys, Fed Res Ctr, KSC SB RAS,50, Akademgorodok, Russia.
Siberian Fed Univ, Lab Nonlinear Opt & Spect, Krasnoyarsk 660079, Russia.
Siberian Fed Univ, Dept Photon & Laser Technol, Krasnoyarsk 660079, Russia.

Доп.точки доступа:
Myslivets, S. A.; Мысливец, Сергей Александрович; Архипкин, Василий Григорьевич; Russian Foundation for Basic Research [15-02-03959]; Siberian Branch of the Russian Academy of Sciences under Complex Program II.2P [0356-2015-0410]
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2.


    Arkhipkin, V. G.
    Propagation of two short pulses under conditions of electromagnetically induced transparency: adiabatic following / V. G. Arkhipkin, I. V. Timofeev // Saratov fall meeting '99: Laser physics and spectroscopy. Ser. Proceedings of the society of photo-optical instrumentation engineers (SPIE) : SPIE-Int. Soc. Optical Engineering, 2000. - Vol. 4002. - P. 45-51, DOI 10.1117/12.380132. - Cited References: 31 . - ISBN 0277-786X. - ISBN 0-8194-3627-5
Рубрики:
POPULATION TRANSFER
   LASER-PULSES

   QUANTUM

   COHERENCE

   MEDIA

   INDEX

   INTERFERENCE

   ENHANCEMENT

   TRANSITIONS

   REFRACTION

Кл.слова (ненормированные):
electromagnetically-induced transparency -- coherent population trapping -- atomic coherence -- quantum interference -- adiabatic following -- dressed field pulses
Аннотация: Spatio-temporal dynamics of two short laser pulses propagating in an absorbing medium, which consists of one-and two-photon resonant ii-atoms, is investigated in the adiabatic approximation. We give an analytical solution and compare it with numerical simulations. It is shown that pulses may propagate in a medium, whose thickness is considerably greater than the length of the linear absorption of a single weak probe wave. Finally, full transfer of the probe pulse energy into the coupling pulse takes place. A vector model of the adiabatic interaction of two pulses with three-level atom is proposed.

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Доп.точки доступа:
Timofeev, I. V.; Тимофеев, Иван Владимирович; Архипкин, Василий Григорьевич; International Workshop/Fall School Meeting for Young Scientists and Students on Optics, Laser Physics, and Biophysics (Saratov Fall Meeting 99) (1999 ; Oct. ; Saratov)
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3.


    Arkhipkin, V. G.
    Temporal shape manipulation of intense light pulses by coherent population trapping / V. G. Arkhipkin, I. V. Timofeev // Phys. Rev. A. - 2006. - Vol. 73, Is. 2. - Ст. 25803, DOI 10.1103/PhysRevA.73.025803. - Cited References: 37 . - ISSN 1050-2947
РУБ Optics + Physics, Atomic, Molecular & Chemical
Рубрики:
ELECTROMAGNETICALLY INDUCED TRANSPARENCY
   NONLINEAR FREQUENCY-CONVERSION

   DOUBLE-LAMBDA SYSTEM

   LASER-PULSES

   MEDIA

   PROPAGATION

   STORAGE

Аннотация: We describe how to control the temporal shape of adiabaton using peculiarities of propagation dynamics under coherent population trapping. Temporal compression is demonstrated as a special case of pulse shaping. The general case of unequal oscillator strengths of two optical transitions in an atom is considered.

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Доп.точки доступа:
Timofeev, I. V.; Тимофеев, Иван Владимирович; Архипкин, Василий Григорьевич
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4.


    Aver'yanov, E. M.
    Effective refractive index of a two-dimensional polycrystal / E. M. Aver’yanov // JETP Letters. - 2015. - Vol. 101, Is. 10. - P. 685-689, DOI 10.1134/S0021364015100033. - Cited References: 28 . - ISSN 0021-3640
РУБ Physics, Multidisciplinary
Рубрики:
SPECTROSCOPIC ELLIPSOMETRY
   CONJUGATED POLYMERS

   LOCAL-FIELD

   FILMS

   CONDUCTIVITY

   POLYFLUORENE

   ANISOTROPY

   DISPERSION

   MEDIA

Аннотация: A relation of the effective refractive index of a two-dimensional polycrystalline dielectric film in the transparency region to the refractive indices n1 and n2 of crystallites at the positions of axes 1 and 2, respectively, of refraction ellipsoids of the crystallites in the plane of the film has been obtained. This relation and the relation L* = (L1 + L2)/2 between the components of the Lorentz tensors for the film and crystallites have been confirmed by comparison with experimental data for conjugate-polymer films with uniaxial domains.

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Публикация на русском языке Аверьянов, Евгений Михайлович. Эффективный показатель преломления двумерного поликристалла [Текст] / Е. М. Аверьянов // Письма в Журн. эксперим. и теор. физ. : Наука, 2015. - Т. 101 Вып. 10. - С. 761-765


Доп.точки доступа:
Аверьянов, Евгений Михайлович
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5.


    Bulgakov, E. N.
    Symmetry breaking for transmission in a photonic waveguide coupled with two off-channel nonlinear defects / E. N. Bulgakov, K. N. Pichugin, A. F. Sadreev // Phys. Rev. B. - 2011. - Vol. 83, Is. 4. - Ст. 45109, DOI 10.1103/PhysRevB.83.045109. - Cited References: 50. - This work was partially supported by RFBR Grant No. 09-02-98005-"Siberia" and RFBR Grant No. 11-02-00289. . - ISSN 1098-0121
РУБ Physics, Condensed Matter
Рубрики:
CRYSTAL-CIRCUITS
   LOCALIZED MODES

   BISTABILITY

   IMPURITIES

   RESONANCE

   CAVITIES

   STATES

   MEDIA

Аннотация: We consider light transmission in a two-dimensional (2D) photonic crystal waveguide coupled with two identical nonlinear defects positioned symmetrically aside the waveguide. With the coupled mode theory, we show three scenarios for the transmission. The first one inherits the linear case and preserves the symmetry. In the second scenario, the symmetry is broken because of different light intensities at the defects. In the third scenario, the intensities at the defects are equal but phases of complex amplitudes are different. That results in a vortical power flow between the defects similar to the dc Josephson effect if the input power over the waveguide is applied and the defects are coupled. All of these phenomena agree well with computations based on an expansion of the electromagnetic field into optimally adapted photonic Wannier functions in a 2D photonic crystal.

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Держатели документа:
[Bulgakov, Evgeny
Pichugin, Konstantin
Sadreev, Almas] LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
[Bulgakov, Evgeny] Siberian State Aerosp Univ, Krasnoyarsk, Russia

Доп.точки доступа:
Pichugin, K. N.; Пичугин, Константин Николаевич; Sadreev, A. F.; Садреев, Алмаз Фаттахович; Булгаков, Евгений Николаевич
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6.


   
    Effect of the Semiconductor Spacer on Positive Exchange Bias in the CoNi/Si/FeNi Three-Layer Structure / G. S. Patrin [et al.] // JETP Letters. - 2019. - Vol. 109, Is. 5. - P. 320-324, DOI 10.1134/S0021364019050126. - Cited References: 26. - This work was supported by the Russian Foundation for Basic Research (project no. 18-02-00161-a). . - ISSN 0021-3640. - ISSN 1090-6487
Рубрики:
MEDIA
Аннотация: Films consisting of a hard magnetic ferromagnet CoNi and a soft magnetic ferromagnet FeNi interacting through a nonmagnetic Si semiconductor spacer are experimentally studied. The temperature and field dependences of the magnetic properties of film structures with different silicon thicknesses are examined. It is found that the multilayer structure has the properties inherent in magnetic springs and exhibits positive exchange bias as a function of the silicon thickness.

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Публикация на русском языке Влияние полупроводниковой прослойки на эффект положительного обменного смещения в трехслойной структуре CoNi/Si/FeNi [Текст] / Г. С. Патрин [и др.] // Письма в ЖЭТФ. - 2019. - Т. 109 Вып. 5-6. - С. 325-330

Держатели документа:
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Fed Res Ctr KSC, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Patrin, G. S.; Патрин, Геннадий Семёнович; Turpanov, I. A.; Yushkov, V. I.; Юшков, Василий Иванович; Kobyakov, A. V.; Кобяков, Александр Васильевич; Patrin, K. G.; Yurkin, G. Yu.; Zhivaya, Ya A.; Russian Foundation for Basic Research [18-02-00161-a]
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7.


   
    Fractal dimension of cluster boundaries in porous polycrystalline HTSC materials / A. A. Bykov [et al.] // Phys. Solid State. - 2012. - Vol. 54, Is. 10. - P. 1947-1950, DOI 10.1134/S1063783412100095. - Cited References: 20 . - ISSN 1063-7834
РУБ Physics, Condensed Matter
Рубрики:
CURRENT-VOLTAGE CHARACTERISTICS
   ELECTRICAL-CONDUCTIVITY

   PERCOLATION

   MIXTURES

   MEDIA

   SUPERCONDUCTORS

   TRANSPORT

   SPHERES

Аннотация: The fractal dimension of the boundaries of clusters formed by pores and granules in polycrystalline materials is shown to be determined by the sample density and crystallite sizes. The dependence of the fractal dimension on the density has a maximum. It is shown that the maximum diamagnetic response can be obtained in a porous high-temperature superconductor with a porosity of 50-60% and small crystallite sizes.

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Публикация на русском языке Фрактальная размерность границ кластеров в пористых поликристаллических ВТСП-материалах [Текст] / А. А. Быков [и др.] // Физ. тверд. тела : Физико-технический институт им. А.Ф.Иоффе РАН, 2012. - Т. 54 Вып. 10. - С. 1825-1828

Держатели документа:
[Bykov, A. A.
Terent'ev, K. Yu.
Gokhfeld, D. M.
Petrov, M. I.] Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Bykov, A. A.; Быков, Алексей Анатольевич; Terent'yev, K. Yu.; Терентьев, Константин Юрьевич; Gokhfeld, D. M.; Гохфельд, Денис Михайлович; Petrov, M. I.; Петров, Михаил Иванович
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8.


    Ignatchenko, V. A.
    Crossing resonance of stochastically interacting wave fields / V. A. Ignatchenko, D. S. Polukhin // J. Exp. Theor. Phys. - 2013. - Vol. 116, Is. 2. - P. 206-222, DOI 10.1134/S1063776113020118. - Cited References: 42. - We are grateful to V. V. Val'kov and A. F. Sadreev for useful discussions. This work was supported by the Presidium of the Russian Academy of Sciences (Program no. 24.29), the Dynasty Foundation (Program for Support of Young Scientists), the Federal Target Program (state contract no. 14.B37.21.0730), and the Special Program for Siberian Federal University of the Ministry of Education and Science of the Russian Federation. . - ISSN 1063-7761
РУБ Physics, Multidisciplinary
Рубрики:
CRYSTALS
   SYSTEMS

   ALLOYS

   MEDIA

Аннотация: The dynamic susceptibilities (Green's functions) of the system of two interacting wave fields of different physical natures with a stochastically inhomogeneous coupling parameter between them with zero mean value have been examined. The well-known self-consistent approximation taking into account all diagrams with noncrossing correlation/interaction lines has been generalized to the case of stochastically interacting wave fields. The analysis has been performed for spin and elastic waves. The results obtained taking into account the processes of multiple scattering of waves from inhomogeneities are significantly different from those obtained for this situation earlier in the Bourret approximation [R.C. Bourret, Nuovo Cimento 26, 1 (1962)]. Instead of frequencies degeneracy removal in the wave spectrum and the splitting of resonance peaks of dynamic susceptibilities, a wide single-mode resonance peak should be observed at the crossing point of the unperturbed dispersion curves. The fine structure appears at vertices of these wide peaks in the form of a narrow resonance on the Green's-function curve of one field and a narrow antiresonance on the vertex of the Green's-function curve of the other field.

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Публикация на русском языке Кроссинг-резонанс стохастически взаимодействующих волновых полей. - [S. l. : s. n.]

Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660041, Russia

Доп.точки доступа:
Polukhin, D. S.; Полухин, Дмитрий Сергеевич; Игнатченко, Вальтер Алексеевич
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9.


    Ignatchenko, V. A.
    Effects of cross correlations between 1D and 3D inhomogeneities on the high-frequency susceptibility of superlattices / V. A. Ignatchenko, Y. I. Mankov // J. Exp. Theor. Phys. - 2006. - Vol. 102, Is. 4. - P. 625-635, DOI 10.1134/S106377610604011X. - Cited References: 29 . - ISSN 1063-7761
РУБ Physics, Multidisciplinary
Рубрики:
ELASTIC MEDIUM THEORY
   3-DIMENSIONAL INHOMOGENEITIES

   PERIODIC MULTILAYERS

   SPIN-WAVES

   LOCALIZATION

   SPECTRUM

   SYSTEMS

   MEDIA

   DISORDER

Кл.слова (ненормированные):
Correlation methods -- Damping -- Function evaluation -- Wave equations -- Brillouin zone -- Distribution function -- Random variables -- Superlattices
Аннотация: Cross Correlations between components of a mixture of one-dimensional (I D) and three-diniensional (3D) inhomogenetics are described by introducing a distribution function taking into account correlations between absolute values of two random variables in the absence of correlations between the variables themselves. This distribution function is used for derivation and analysis of the superlattice correlation function containing a mixture of cross-correlated 1D and 3D in homogeneitics. The effect of such inhomogeneities on the high-frequency susceptibility at the edge of the first Brillouin zone of the superlattice is investigated. It is shown that positive cross correlations partly suppress the effect of a mixture of 1D and 3D inhomogeneities on the wave spectrum: the gap at the boundary of the Brillouin zone increases, and wave damping decreases as compared to the effect produced by a mixture of 1D and 3D inhomogeneities in the absence of cross correlations. Negative cross correlations lead to the opposite effect: the gap decreases and wave damping increases. Cross correlations also lead to the emergence of new resonance effects: a narrow dip or a narrow peak at the center of the band gap (depending on the sign of the correlation factor).

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Держатели документа:
Russian Acad Sci, Kirenskii Inst Phys, Siberian Div, Krasnoyarsk 660036, Russia
ИФ СО РАН
Kirenskii Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Mankov, Y. I.; Игнатченко, Вальтер Алексеевич
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10.


    Ignatchenko, V. A.
    Effects of one- and three-dimensional inhomogeneities on the wave spectrum of multilayers with finite interface thicknesses / V. A. Ignatchenko, Y. I. Mankov, A. A. Maradudin // Phys. Rev. B. - 2002. - Vol. 65, Is. 2. - Ст. 24207, DOI 10.1103/PhysRevB.65.024207. - Cited References: 24 . - ISSN 1098-0121
РУБ Physics, Condensed Matter
Рубрики:
PERIODIC MULTILAYERS
   SPIN-WAVES

   LOCALIZATION

   SUPERLATTICES

   SYSTEMS

   DISORDER

   AVERAGE

   MEDIA

Аннотация: To describe a partially randomized multilayer structure with arbitrary thicknesses of the interfaces between layers, we introduce a model in which the dependence of a material parameter along the axis of such a Superlattice is described by a Jacobian elliptic sine function with a random spatial modulation of its period. Both one- and three-dimensional inhomogeneities of the period are considered. We develop the correlation function for this model, and investigate the dispersion law and damping of averaged waves in this superlattice. The dependencies of the widths of the gaps in the spectrum and the damping at the boundaries of all odd Brillouin zones, on the thicknesses of the interfaces, and on the dimensionality, intensity, and correlation wave number of the inhomogeneities are found. It is shown that experimental investigations of the widths of the gaps and damping for several Brillouin zones could permit, in principle, determining all parameters of the superlattice as well as the parameters of the inhomogeneities from these spectral characteristics.

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Держатели документа:
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA
ИФ СО РАН

Доп.точки доступа:
Mankov, Y. I.; Maradudin, A. A.; Игнатченко, Вальтер Алексеевич
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