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1.


    Pichugin, K. N.
    Analysis of a channel-drop filter based on dispersive waveguides and two resonant cavities / K. N. Pichugin, A. F. Sadreev // J. Opt. - 2013. - Vol. 15, Is. 3. - Ст. 35502. - P. , DOI 10.1088/2040-8978/15/3/035502. - Cited References: 35. - The work is partially supported by RFBR grant 13-07-98018-a and RFBR grant 'Sibir' 13-07-00497 . - ISSN 2040-8978
РУБ Optics
Рубрики:
PHOTONIC CRYSTAL SLABS
   REFLECTION FEEDBACK

   MODES

   DESIGN

Кл.слова (ненормированные):
channel dropping -- dispersive waveguides -- optical micro-cavities
Аннотация: By use of coupled-mode theory we analyze a channel add-drop filter based on two dispersive waveguides symmetrically coupled with two resonant optical cavities. We show new solutions for the channel-drop filter processes compared to the solutions found by Manolatou et al (1999 IEEE J. Quantum Electron. 35 1322). For a special choice of the dispersion of the waveguides, we reveal a frequency region with sufficient total reflection.

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Доп.точки доступа:
Sadreev, A. F.; Садреев, Алмаз Фаттахович; Пичугин, Константин Николаевич
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2.


    Bulgakov, E. N.
    Giant optical vortex in photonic crystal waveguide with nonlinear optical cavity / E. N. Bulgakov, A. F. Sadreev // Phys. Rev. B. - 2012. - Vol. 85, Is. 16. - Ст. 165305, DOI 10.1103/PhysRevB.85.165305. - Cited References: 43. - The work is partially supported by RFBR grant 12-02-00483. We thank D. N. Maksimov and K. N. Pichugin for assistance in the manuscript preparation. . - ISSN 1098-0121
РУБ Physics, Condensed Matter
Рубрики:
SYMMETRY-BREAKING
   FIBER

   MICROCAVITIES

   COUPLER

   INSTABILITIES

   GRATINGS

   MODES

   LIGHT

Аннотация: We consider light transmission in a directional photonic crystal waveguide that holds a nonlinear defect with two resonant dipole modes within the light propagation band. For the defect positioned on the center line of the waveguide, there are two ways to break the mirror symmetry with respect to either light intensity or light phase. The latter results in a giant vortex of the Poynting vector of the power current within the defect exceeding the input current by, at least, two orders of magnitude. We also consider the breaking of symmetry relative to the mirror reflection with respect to the cross-sectional axis of the waveguide when light is injected equally into both ends of the waveguide. This leads to different light outputs determined by the vorticity of the optical vortex.

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Держатели документа:
[Bulgakov, Evgeny N.
Sadreev, Almas F.] LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
[Bulgakov, Evgeny N.] Sibian State Aerosp Univ, Krasnoyarsk, Russia

Доп.точки доступа:
Sadreev, A. F.; Садреев, Алмаз Фаттахович; Булгаков, Евгений Николаевич
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3.


    Korshunov, M. A.
    Molecular dynamics investigation of the helical structure of smectic C* / M. A. Korshunov, A. V. Shabanov // Phys. Solid State. - 2012. - Vol. 54, Is. 8. - P. 1704-1708, DOI 10.1134/S106378341208015X. - Cited References: 34 . - ISSN 1063-7834
РУБ Physics, Condensed Matter
Рубрики:
LIQUID-CRYSTALS
   SHORT-PITCH

   FORCE-FIELD

   SIMULATIONS

   MODES

   PHASE

   DOBAMBC

   POWER

Аннотация: The numerical simulation of the behavior of the molecules of the DOBAMBC liquid crystal by the molecular dynamics method allowed us to find the change of the the conformation of molecules as a function of temperature and to reveal the helical structures with various pitches in the smectic phase C*. These results explained the anomalous temperature dependences of the order parameter at the molecular level, as well as the optical second harmonic generation in the region of smectic A.

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Публикация на русском языке Коршунов, Михаил Анатольевич. Исследование геликоидальной структуры смектика C* методом молекулярной динамики [Текст] / М. А. Коршунов, А. В. Шабанов // Физ. тверд. тела : Физико-технический институт им. А.Ф.Иоффе РАН, 2012. - Т. 54 Вып. 8. - С. 1596-1599

Держатели документа:
[Korshunov, M. A.
Shabanov, A. V.] Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia
Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences, Akademgorodok 50-38, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Shabanov, A. V.; Шабанов, Александр Васильевич; Коршунов, Михаил Анатольевич
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4.


    Rasskazov, I. L.
    Waveguiding properties of short linear chains of nonspherical metal nanoparticles [Текст] / I. L. Rasskazov, S. V. Karpov, V. A. Markel // J. Opt. Soc. Am. B. - 2014. - Vol. 31, Is. 12. - P. 2981-2989, DOI 10.1364/JOSAB.31.002981. - Cited References: 39. - This research was supported in part by the U.S. National Science Foundation under Grant DMS1216970; by the Russian Academy of Sciences under Grants 24.29, 24.31, III.9.5, 43, and SFU (101); and by the Russian Ministry of Education and Science under Contract 1792. . - ISSN 0740-3224. - ISSN 1520-8540
РУБ Optics
Рубрики:
DISPERSION-RELATIONS
   MODES

   SCATTERING

   ARRAYS

   GUIDES

   LIGHT

   GAIN

Аннотация: We study numerically the discrete dispersion relations and waveguiding properties of relatively short linear chains of spherical and spheroidal silver nanoparticles. Simulations are based on the Drude model for the dielectric permittivity of metal and on the dipole approximation for the electromagnetic interaction of particles. We also simulate the dynamics of femtosecond optical pulse propagation along such chains. In the case that we consider (10 particles per chain), reflections from the chain terminals play a significant detrimental role. We show that dissipative traps can be used to reduce the effects of reflections. We also show that chains composed of oblate spheroids with sufficiently small aspect ratio (nanodisks) have better waveguiding properties when compared to chains made of particles with other spheroidal shapes. This includes a slower rate of decay, larger group velocity, and larger bandwidth.

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Держатели документа:
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Lab Nonlinear Opt & Spect, Krasnoyarsk 660041, Russia
Siberian Fed Univ, Dept Photon & Laser Technol, Krasnoyarsk 660041, Russia
Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
Univ Penn, Dept Radiol, Philadelphia, PA 19104 USA
Univ Penn, Dept Bioengn, Philadelphia, PA 19104 USA
Univ Penn, Grad Grp Appl Math & Computat Sci, Philadelphia, PA 19104 USA

Доп.точки доступа:
Karpov, S. V.; Карпов, Сергей Васильевич; Markel, V. A.; Рассказов, Илья Леонидович; U.S. National Science Foundation [DMS1216970]; Russian Academy of Sciences [24.29, 24.31, III.9.5, 43]; SFU [101]; Russian Ministry of Education and Science [1792]
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5.


    Bulgakov, E. N.
    Light trapping above the light cone in a one-dimensional array of dielectric spheres / E. N. Bulgakov, A. F. Sadreev // Phys. Rev. A. - 2015. - Vol. 92, Is. 2. - Ст. 023816, DOI 10.1103/PhysRevA.92.023816. - Cited References:62. - The work was supported by the Russian Science Foundation through Grant No. 14-12-00266. We acknowledge discussions with D. N. Maksimov. . - ISSN 1050. - ISSN 1094-1622
   Перевод заглавия: Захват света выше светового конуса в одномерной цепочке диэлектрических сфер
РУБ Optics + Physics, Atomic, Molecular & Chemical
Рубрики:
CLASSICAL ELECTROMAGNETIC SCATTERING
   ENERGY PHOTON DIFFRACTION

   BLOCH SURFACE-WAVES

   RADIATION CONTINUUM

   MULTIPLE-SCATTERING

   CONSUMMATE SOLUTION

   LINEAR ARRAYS

   BOUND-STATES

   MODES

   GUIDES

Аннотация: We demonstrate bound states in the first TE and TM diffraction continua (BSC) in a linear periodic array of dielectric spheres in air above the light cone. We classify the BSCs according to the symmetry specified by the azimuthal number m, the Bloch wave vector β directed along the array, and polarization. The most simple symmetry-protected TE and TM polarized BSCs have m=0 and β=0 and occur in a wide range of the radii of the spheres and dielectric constants. More complicated BSCs with m≠0 and β=0 exist only for a selected radius of the spheres at a fixed dielectric constant. We also find robust Bloch BSCs with β≠0 and m=0. We present also the BSCs embedded into two and three diffraction continua. We show that the BSCs can be easily detected by the collapse of the Fano resonance for scattering of electromagnetic plane waves by the array.

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Держатели документа:
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia.
Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia.

Доп.точки доступа:
Sadreev, A. F.; Садреев, Алмаз Фаттахович; Булгаков, Евгений Николаевич; Russian Science Foundation [14-12-00266]
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6.


    Vetrov, S. Ya.
    Spectral and polarization properties of a ‘cholesteric liquid crystal—phase plate—metal’ structure / S. Y. Vetrov, M. V. Pyatnov, I. V. Timofeev // J. Opt. - 2016. - Vol. 18, Is. 1. - Ст. 015103, DOI 10.1088/2040-8978/18/1/015103. - Cited References:34. - This work was supported by the Russian Foundation for Basic Research, project no. 14-02-31248, and the Ministry of Education and Science of the Russian Federation, Government program, project no. 3.1276.2014/K. . - ISSN 2040-8978. - ISSN 2040-8986
РУБ Optics
Рубрики:
OPTICAL TAMM STATES
   MODES

   LIGHT

Кл.слова (ненормированные):
photonic band gap materials -- cholesteric liquid crystals -- localized -- states -- optical filters -- optical waveguides
Аннотация: We investigate the localized surface modes in a structure consisting of the cholesteric liquid crystal layer, a phase plate, and a metal layer. These modes are analogous to the optical Tamm states. The nonreciprocal transmission of polarized light propagating in the forward and backward directions is established. It is demonstrated that the transmission spectrum can be controlled by external fields acting on the cholesteric liquid crystal and by varying the plane of polarization of the incident light.

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Держатели документа:
Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk 660041, Russia.
Siberian Fed Univ, Lab Nonlinear Opt & Spect, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Pyatnov, M. V.; Timofeev, I. V.; Тимофеев, Иван Владимирович; Ветров, Степан Яковлевич; Russian Foundation for Basic Research [14-02-31248]; Ministry of Education and Science of the Russian Federation, Government program [3.1276.2014/K]
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7.


    Gorelik, V. S.
    Raman scattering in sodium nitrite crystals near the phase transition / V. S. Gorelik, A. Y. Pyatyshev, A. S. Krylov // Phys. Solid State. - 2016. - Vol. 58, Is. 1. - P. 170-176, DOI 10.1134/S1063783416010133. - Cited References: 39. - This study was supported by the Russian Foundation for Basic Research (project nos. 12-02-00491, 13-02-00449, 13-02-90420, and 14-02-00190). . - ISSN 1063-7834
РУБ Physics, Condensed Matter
Рубрики:
NaNO2
   SPECTROSCOPY

   DEPENDENCE

   SPECTRUM

   SEARCH

   MODES

Аннотация: Optical Raman spectra of a ferroelectric sodium nitrite crystal have been detected in a wide spectrum range at various temperatures, including the region of the ferroelectric phase transition. A manifestation of a transverse soft polar mode of the A1(z) type responsible for the ferroelectric phase transition has been discovered in the spectrum at room temperature. This mode has been found to become overdamped even far from the ferroelectric phase transition temperature. This mode also appears as a central peak under heating. It has been found that the pseudoscalar mode of the A2 type has the highest intensity in the Raman spectrum of sodium nitrite. The frequency corresponding to the maximum intensity of this mode in the Raman spectrum varies from 130 cm–1 at 123 K to 106 cm–1 at T = 513 K. A fair agreement of the experimental data for the A1(z) mode with the Lyddane–Sachs–Teller relation has been established. The polariton curves for the A1(z) polar mode and the dispersion curves for axinons has been plotted. © 2016, Pleiades Publishing, Ltd.

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Публикация на русском языке Горелик, Владимир Семенович. Комбинационное рассеяние света в области фазового перехода в кристаллах нитрита натрия [Текст] / В. С. Горелик, А. Ю. Пятышев, А. С. Крылов // Физ. тверд. тела : Физико-технический институт им. А. Ф. Иоффе РАН, 2016. - Т. 58 Вып. 1. - С. 163-169

Держатели документа:
Lebedev Physical Institute, Russian Academy of Sciences, Leninskii pr. 53, Moscow, Russian Federation
Bauman Moscow State Technical University, Vtoraya Baumanskaya ul. 5, Moscow, Russian Federation
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Pyatyshev, A. Y.; Krylov, A. S.; Крылов, Александр Сергеевич
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8.


   
    Overcoming the adverse effects of substrate on the waveguiding properties of plasmonic nanoparticle chains / I. L. Rasskazov [et al.] // J. Appl. Phys. - 2016. - Vol. 119, Is. 4. - Ст. 043101, DOI 10.1063/1.4940415. - Cited References: 43. - This work has been carried out thanks to the support of the A*MIDEX project (No. ANR-11-IDEX-0001-02) funded by the “Investissements d'Avenir” French Government program, managed by the French National Research Agency (ANR) and was also supported in part by the U.S. National Science Foundation under Grant No. DMS1216970 and by the Ministry of Education and Science of the Russian Federation under Contract No. 1792. . - ISSN 0021-8979
РУБ Physics, Applied
Рубрики:
LINEAR-CHAINS
   DISPERSION-RELATIONS

   ARRAYS

   RESONANCES

   GUIDES

   NANOSPHERES

   MODES

   FIELD

   POLARITONS

   PARTICLES

Аннотация: We have studied numerically the propagation of surface plasmon polaritons (SPPs) in linear periodic chains of plasmonic nanoparticles of different shapes. The chains are deposited on top of a thick dielectric substrate. While in many commonly considered cases the substrate tends to suppress the SPP propagation, we have found that this adverse effect is practically absent in the case when the nanoparticles have the shape of oblate spheroids with sufficiently small aspect ratio (e.g., nanodisks) whose axes of symmetry coincide with the axis of the chain. © 2016 AIP Publishing LLC.

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Держатели документа:
Siberian Federal University, Krasnoyarsk, Russian Federation
L. V. Kirensky Institute of Physics, Krasnoyarsk, Russian Federation
Siberian State Aerospace University, Krasnoyarsk, Russian Federation
Aerospace Systems Dirct., Air Force Research Laboratory, Wright-Patterson Air Force Base, OH, United States
Aix-Marseille Universite, CNRS, Centrale Marseille, Institut Fresnel UMR 7249, Marseille, France
Department of Radiology, University of Pennsylvania, Philadelphia, PA, United States

Доп.точки доступа:
Rasskazov, I. L.; Рассказов, Илья Леонидович; Karpov, S. V.; Карпов, Сергей Васильевич; Panasyuk, G. Y.; Markel, V. A.
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9.


    Arkhipkin, V. G.
    Transmission and reflection spectra of a photonic crystal with a Raman defects / V. G. Arkhipkin, S. A. Myslivets // J. Exp. Theor. Phys. - 2011. - Vol. 111, Is. 6. - P. 898-906, DOI 10.1134/S1063776110120022. - 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). . - ISSN 1063-7761
РУБ Physics, Multidisciplinary
Рубрики:
ELECTROMAGNETICALLY INDUCED TRANSPARENCY
   SLOW-LIGHT

   NONLINEAR OPTICS

   MICROCAVITIES

   LASERS

   AMPLIFIER

   MODES

Кл.слова (ненормированные):
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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Оригинал на русском языке Спектры пропускания и отражения фотонного кристалла с рамановским дефектом [Текст] / В. Г. Архипкин, С. А. Мысливец // Журнал экспериментальной и теоретической физики. - Москва : Федеральное государственное унитарное предприятие "Академический научно-издательский, производственно-полиграфический и книгораспространительский центр Российской академии наук "Издательство "Наука", 2010. - Т. 138 № 6. - С. 1018-1027

Держатели документа:
[Arkhipkin, V. G.] Russian Acad Sci, Kirenskii Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660041, Russia
ИФ СО РАН
Kirenskii Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, Krasnoyarsk 660041, Russian Federation

Доп.точки доступа:
Myslivets, S. A.; Мысливец, Сергей Александрович; Архипкин, Василий Григорьевич
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10.


    Belyaev, B. A.
    Micromagnetic calculation of the equilibrium distribution of magnetic moments in thin films / B. A. Belyaev, A. V. Izotov, A. A. Leksikov // Phys. Solid State. - 2010. - Vol. 52, Is. 8. - P. 1664-1672, DOI 10.1134/S1063783410080160. - Cited References: 17. - This study was supported by the Council on Grants from the President of the Russian Federation (grant no. 3818.2008.3), the Siberian Branch of the Russian Academy of Sciences (integration project no. 5), the Presidium of the Russian Academy of Sciences (project no. 27.1), and the Ministry of Education and Science of the Russian federation (state contract nos. 02.740.11.0220 and 02.740.11.0568. . - ISSN 1063-7834
РУБ Physics, Condensed Matter
Рубрики:
SIMULATIONS
   ANISOTROPY

   NANOPARTICLES

   MODES

Аннотация: A new approach has been proposed for determining an equilibrium configuration of magnetic moments in condensed matter in terms of its discrete model. The solution to this problem is reduced to a system of linear inhomogeneous equations with undetermined Lagrange multipliers. The possibility of numerically solving these systems has been shown using a modified power method. The efficiency of the method has been demonstrated for the model of a thin magnetic film with a nonuniform distribution of the uniaxial magnetic anisotropy over the area. The dependence of the coercive force on the uniaxial anisotropy of nanocrystallites, their exchange interaction, and other parameters of samples has been investigated.

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Держатели документа:
[Belyaev, B. A.
Leksikov, An. A.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Izotov, A. V.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, pr. Svobodnyi 79, Krasnoyarsk 660041, Russian Federation

Доп.точки доступа:
Izotov, A. V.; Изотов, Андрей Викторович; Leksikov, An. A.; Лексиков, Андрей Александрович; Беляев, Борис Афанасьевич
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