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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Pichugin K. N., Sadreev A. F.
Заглавие : Analysis of a channel-drop filter based on dispersive waveguides and two resonant cavities
Место публикации : J. Opt.: IOP Publishing Ltd, 2013. - Vol. 15, Is. 3. - Ст.35502. - P. - ISSN 2040-8978, DOI 10.1088/2040-8978/15/3/035502
Примечания : Cited References: 35. - The work is partially supported by RFBR grant 13-07-98018-a and RFBR grant 'Sibir' 13-07-00497
Предметные рубрики: PHOTONIC CRYSTAL SLABS
REFLECTION FEEDBACK
MODES
DESIGN
Ключевые слова (''Своб.индексиров.''): 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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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bulgakov E. N., Sadreev A. F.
Заглавие : Bound States in Photonic Fabry-Perot Resonator Comprised of Two Nonlinear Off-Channel Defects
Коллективы : Russian Foundation for Basic Research [09-02-98005-Siberia]
Место публикации : JETP Letters. - 2009. - Vol. 90, Is. 12. - P.744-749. - ISSN 0021-3640, DOI 10.1134/S0021364009240023
Примечания : Cited References: 32. - We thank Kostya Pichugin for many helpful discussions. The work was partially supported by the Russian Foundation for Basic Research, project no. 09-02-98005-Siberia.
Предметные рубрики: SCATTERING-THEORY
WAVE-GUIDE
CONTINUUM
MODES
Аннотация: Two off-channel nonlinear defects coupled to the photonic waveguide constitute the Fabry-Perot interfer-ometer (FPR). The defects are made from a Kerr-like nonlinear material. For the linear case such a FPR can support the bound states in the form of standing waves between the defects if the distance between them is quantized. For the nonlinear case the bound states appear for arbitrary distance between the defects however for an quantized electromagnetic intensity. For the transmission through FPR we reveal new resonances and show these are a result of coupling of the bound states with incident wave because of nonlinearity of the defects. The resonances are spaced at the eigen frequencies of bound states.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Avdeeva A. Yu., Vetrov S. Ya., Bikbaev R. G., Pyatnov M. V., Rudakova N. V., Timofeev I. V.
Заглавие : Chiral optical Tamm states at the interface between a Dye-doped cholesteric liquid crystal and an anisotropic mirror
Коллективы : Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund [19-42-240004]; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [19-52-52006]
Место публикации : Materials. - 2020. - Vol. 13, Is. 15. - Ст.3255. - ISSN 1996-1944(eISSN), DOI 10.3390/ma13153255
Примечания : Cited References: 44. - The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research project No. 19-42-240004 and by Russian Foundation for Basic Research, project No. 19-52-52006
Предметные рубрики: PHASE
POLARIZATION
MODES
Аннотация: The resonant splitting of optical Tamm state numerically is demonstrated. The Tamm state is localized at the interface between a resonant chiral medium and a polarization-preserving anisotropic mirror. The chiral medium is considered as a cholesteric liquid crystal doped with resonant dye molecules. The article shows that the splitting occurs when dye resonance frequency coincides with the frequency of the Tamm state. In this case the reflectance, transmittance, and absorptance spectra show two distinct Tamm modes. For both modes, the field localization is at the interface between the media. The external field control of configurable optical and structural parameters paves the way for use in tunable chiral microlaser.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Zakomirnyi, Vadim, I, Karpov S. V., Agren, Hans, Rasskazov, Ilia L.
Заглавие : Collective lattice resonances in disordered and quasi-random all-dielectric metasurfaces
Коллективы : Russian Foundation for Basic Research (RFBR) [18-42-240013]; Russian Science Foundation (RSF) [18-13-00363]; Siberian Federal University (SibFU) [3.8896.2017]
Место публикации : J. Opt. Soc. Am. B. - 2019. - Vol. 36, Is. 7. - P.E21-E29. - ISSN 0740-3224, DOI 10.1364/JOSAB.36.000E21. - ISSN 1520-8540(eISSN)
Примечания : Cited References: 91. - Russian Foundation for Basic Research (RFBR) (18-42-240013); Russian Science Foundation (RSF) (18-13-00363); Siberian Federal University (SibFU) (3.8896.2017).
Предметные рубрики: PLASMON RESONANCES
NANOPARTICLE ARRAY
MODES
GOLD
NANOPHOTONICS
Аннотация: Collective lattice resonances in disordered 2D arrays of spherical Si nanoparticles (NPs) have been thoroughly studied within the framework of the coupled dipole approximation. Three types of defects have been analyzed: positional disorder, size disorder, and quasi-random disorder. We show that the positional disorder strongly suppresses either the electric dipole (ED) or the magnetic dipole (MD) coupling, depending on the axis along which the NPs are shifted. Contrarily, size disorder strongly affects only the MD response, while the ED resonance can be almost intact, depending on the lattice configuration. Finally, random removing of NPs from an ordered 2D lattice reveals a quite surprising result: hybridization of the ED and MD resonances with lattice modes remains observable even in the case of random removing of up to 84% of the NPs from the ordered array. The reported results could be important for rational design and utilization of metasurfaces, solar cells, and other alldielectric photonic devices. (C) 2019 Optical Society of America
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Iskhakov R. S., Gavrishin I. V., Chekanova L. A.
Заглавие : Experimental study of the energy gap in the spin-wave spectrum in Co/Pd multilayer films
Место публикации : JETP Letters. - 1996. - Vol. 63, Is. 12. - P.989-993. - ISSN 0021-3640, DOI 10.1134/1.567132
Примечания : Cited References: 20
Предметные рубрики: LAYERED MAGNETIC-STRUCTURES
RESONANCE
MODES
FMR
Аннотация: The energy gap appearing in the spin-wave spectrum as a result of Bragg scattering by the modulation period q = 2 pi/(d(1)+d(2)) Of a one-dimensional superlattice is observed by the method of spin-wave resonance in Co/Pd multilayer films. It is shown that this gap is asymmetric: The ''positive'' deviation is from two to three times greater than the ''negative'' deviation. (C) 1996 American Institute of Physics.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bulgakov E. N., Sadreev A. F.
Заглавие : Giant optical vortex in photonic crystal waveguide with nonlinear optical cavity
Место публикации : Phys. Rev. B: American Physical Society, 2012. - Vol. 85, Is. 16. - Ст.165305. - ISSN 1098-0121, DOI 10.1103/PhysRevB.85.165305
Примечания : 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.
Предметные 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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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bulgakov E. N., Sadreev A. F.
Заглавие : Light trapping above the light cone in a one-dimensional array of dielectric spheres
Коллективы : Russian Science Foundation [14-12-00266]
Место публикации : Phys. Rev. A: American Physical Society, 2015. - Vol. 92, Is. 2. - Ст.023816. - ISSN 1050, DOI 10.1103/PhysRevA.92.023816. - ISSN 10941622(eISSN)
Примечания : 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.
Предметные 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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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Pyatnov M. V., Vetrov S. Ya., Timofeev I. V.
Заглавие : Localized optical states in a liquid-crystal structure adjacent to a metal
Коллективы : International Optical Congress on Optics - 21st Century, International Conference on Basic Problems of Optics (BPO) , Russian Foundation for Basic Research; Government of the Krasnoyarsk Territory; Krasnoyarsk Territorial Science and Technology Support Fund [17-42-240464]
Место публикации : Opt. Spectrosc.: MAIK Nauka-Interperiodica / Springer, 2017. - Vol. 123, Is. 2. - P.189-192. - ISSN 0030-400X, DOI 10.1134/S0030400X17080173. - ISSN 1562-6911(eISSN)
Примечания : Cited References:23. - This study was supported by the Russian Foundation for Basic Research, Government of the Krasnoyarsk Territory, and Krasnoyarsk Territorial Science and Technology Support Fund, project no. 17-42-240464.
Предметные рубрики: PHOTONIC CRYSTALS
TAMM STATES
MODES
Аннотация: The spectrum of light transmission through a structure consisting of a metallic layer and a cholesteric liquid crystal with an induced planar defect is calculated. The possibility of existence of localized states at the metal-dielectric interface of this system is demonstrated. The transmission spectra at different positions of the defect in the structure are studied.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Deich L. I.
Заглавие : Low-frequency raman-scattering in glasses
Разночтения заглавия :авие SCOPUS: Low-frequency Raman scattering in glasses
Место публикации : Phys. Rev. B. - 1995. - Vol. 51, Is. 13. - P.8131-8139. - ISSN 0163-1829, DOI 10.1103/PhysRevB.51.8131
Примечания : Cited References: 32
Предметные рубрики: AMORPHOUS SOLIDS
VITREOUS SILICA
THERMAL-CONDUCTIVITY
LIGHT-SCATTERING
TEMPERATURE
STATES
MODES
HEAT
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Rudakova N. V., Bikbaev R. G., Pankin P. S., Vetrov S. Ya., Timofeev I. V., Chen, Kuo-Ping, Lee, Wei
Заглавие : Metal-dielectric polarization-preserving anisotropic mirror for chiral optical Tamm state
Коллективы : RFBRRussian Foundation for Basic Research (RFBR); MOST [19-52-52006]; Higher Education Sprout Project of the National Yang Ming Chiao Tung University; Ministry of Science and Technology (MOST)Ministry of Science and Technology, China [108-2923-E-009-003-MY3]
Место публикации : Nanomaterials. - 2022. - Vol. 12, Is. 2. - Ст.234. - ISSN 2079-4991(eISSN), DOI 10.3390/nano12020234
Примечания : Cited References: 46. - The reported study was funded by RFBR and MOST according to the research project No. 19-52-52006. This work was also supported by the Higher Education Sprout Project of the National Yang Ming Chiao Tung University and Ministry of Education and the Ministry of Science and Technology (MOST) No. 108-2923-E-009-003-MY3
Предметные рубрики: PLASMON
MODES
PHASE
ABSORPTION
RESONANCE
Аннотация: This numerical study demonstrates the possibility of exciting a chiral optical Tamm state localized at the interface between a cholesteric liquid crystal and a polarization-preserving anisotropic mirror conjugated to a metasurface. The difference of the proposed structure from a fully dielectric one is that the metasurface makes it possible to decrease the number of layers of a polarization-preserving anisotropic mirror by a factor of more than two at the retained Q-factor of the localized state. It is shown that the proposed structure can be used in a vertically emitting laser.
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