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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Sidorenko M. S., Sergaeva O. N., Sadrieva Z. F., Roques-Carmes C., Muraev P. S., Maksimov D. N., Bogdanov A. A.
Заглавие : Accidental bound state in the continuum in a chain of dielectric disks
Коллективы : Conference on Lasers and Electro-Optics Europe; European Quantum Electronics Conference , RFBRRussian Foundation for Basic Research (RFBR) [19-02-00419]; Russian FederationRussian Federation [MK2224.2020.2]; Foundation for the Advancement of Theoretical Physics and Mathematics BASIS
Место публикации : 2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference: IEEE, 2021. - Conference on Lasers and Electro-Optics Europe / European Quantum Electronics Conference (Jun 21-25, 2021, Electr. Network). - ISBN 978-1-6654-1876-8, DOI 10.1109/CLEO/Europe-EQEC52157.2021.9592618
Примечания : Cited References: 2. - The work was supported by RFBR (19-02-00419), the grant of the President of the Russian Federation (MK2224.2020.2) and the Foundation for the Advancement of Theoretical Physics and Mathematics BASIS
Аннотация: Dielectric resonators are open systems whose eigenmodes couple to the radiation continuum resulting in nonzero radiation losses. For a long time, it was believed that only guided modes with frequencies below the light line were decoupled from the radiation continuum [1] . In the early 2000’s, several counterexamples of perfectly localized states – i.e. totally decoupled from the radiation continuum – at frequencies above the light line were proposed in dielectric gratings and photonic crystal waveguides [2] . Such states are known as bound states in the continuum (BIC).
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Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Sidorenko M. S., Sergaeva O. N., Sadrieva Z. F., Roques-Carmes C., Muraev P. S., Maksimov D. N., Bogdanov A. A.
Заглавие : Accidental bound state in the continuum in a chain of dielectric disks
Коллективы : European Quantum Electronics Conference
Место публикации : European Quantum Electronics Conference 2021 (21- 25 June 2021). Optics InfoBase Conference Papers. - 2021. - 2021 European Quantum Electronics Conference, EQEC 2021 - Part of 2021 Conference on Lasers and Electro-Optics Europe, CLEO 2021 (21 June 2021 through 25 June 2021, Virtual, Online) Conference code: 174130. - Ст.jsi_2_4
Примечания : Cited References: 2. - The work was supported by RFBR (19-02-00419), the grant of the President of the Russian Federation (MK-2224.2020.2) and the Foundation for the Advancement of Theoretical Physics and Mathematics BASIS
Аннотация: We experimentally analyze for the first time an off-Gamma BIC in a one-dimensional periodic chain of disks and demonstrate its transformation to a resonant state with the decrease of the chains length.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Pankin P. S., Shabanov A. V., Maksimov D. N., Nabol S. V., Buzin D. S., Krasnov A. I., Romanenko G. A., Sutormin V. S., Gunyakov V. A., Zelenov, Fyodor V., Masyugin, Albert N., Vyatkin, Vladimir P., Nemtsev I. V., Volochaev M. N., Vetrov S. Ya., Timofeev I. V.
Заглавие : Asymmetric resonant light absorption in a chloroplast microstructure
Место публикации : J. Opt. Soc. Am. B. - 2023. - Vol. 40, Is. 1. - P.87-93. - ISSN 07403224 (ISSN), DOI 10.1364/JOSAB.477110. - ISSN 15208540 (eISSN)
Примечания : Cited References: 45
Аннотация: It is shown that in the chloroplast periodic structure with a defect, the resonant absorption of light can be implemented. It is found that the resonant light absorption depends significantly on the position of a defect. In terms of the absorption of light energy, an asymmetric resonator is more efficient than a symmetric one.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Lyapina A. A., Maksimov D. N., Pilipchuk A. S., Sadreev A. F.
Заглавие : Bound states in the continuum in open acoustic resonators
Место публикации : J. Fluid Mech. - 2015. - Vol. 780. - P.370-387. - ISSN 0022-1120, DOI 10.1017/jfm.2015.480
Примечания : Cited References: 48. - This work has been supported by Russian Science Foundation through grant 14-12-00266.
Предметные рубрики: TRAPPED MODES
FANO RESONANCES
COMPLEX RESONANCES
PARALLEL PLATES
SIDE-BRANCHES
WAVE-GUIDES
ABSORPTION
TRANSPORT
CHANNELS
SYSTEM
Ключевые слова (''Своб.индексиров.''): aeroacoustics--noise control--wave scattering
Аннотация: We consider bound states in the continuum (BSCs) or embedded trapped modes in two- and three-dimensional acoustic axisymmetric duct-cavity structures. We demonstrate numerically that, under variation of the length of the cavity, multiple BSCs occur due to the Friedrich-Wintgen two-mode full destructive interference mechanism. The BSCs are detected by tracing the resonant widths to the points of the collapse of Fano resonances where one of the two resonant modes acquires infinite life-time. It is shown that the approach of the acoustic coupled mode theory cast in the truncated form of a two-mode approximation allows us to analytically predict the BSC frequencies and shape functions to a good accuracy in both two and three dimensions. © 2015 Cambridge University Press.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bulgakov E. N., Maksimov D. N.
Заглавие : Avoided crossings and bound states in the continuum in low-contrast dielectric gratings
Коллективы : Ministry of Education and Science of the Russian Federation [3.1845.2017/4.6]
Место публикации : Phys. Rev. A. - 2018. - Vol. 98, Is. 5. - Ст.053840. - ISSN 2469-9926, DOI 10.1103/PhysRevA.98.053840. - ISSN 2469-9934(eISSN)
Примечания : Cited References: 49. - This work was supported by Ministry of Education and Science of the Russian Federation (State Contract No. 3.1845.2017/4.6). We are grateful to K. N. Pichugin for assistance with the computations.
Предметные рубрики: RESONANCES
Аннотация: We consider bound states in the continuum (BICs) in low-contrast dielectric gratings. It is demonstrated that the BICs originate from the reduced guided modes on the effective dielectric slab with the permittivity equal to the average permittivity of the dielectric grating. In the case of isolated resonances, the positions of BICs can be found from two-wave dispersion relationships for guided leaky modes. In the case of the degeneracy between the two families of leaky modes, the system exhibits an avoided crossing of resonances. In the spectral vicinity of the avoided crossing the transmittance as well as the emergence of BICs is described in the framework of the generic formalism by Volya and Zelevinsky [Phys. Rev. C 67, 054322 ( 2003)] with a single fitting parameter.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bulgakov E. N., Maksimov D. N.
Заглавие : Bound states in the continuum and Fano resonances in the Dirac cone spectrum
Коллективы : Ministry of Higher Education and Science of the Russian Federation [N 3.1845.2017/4.6]
Место публикации : J. Opt. Soc. Am. B. - 2019. - Vol. 36, Is. 8. - P.2221-2225. - ISSN 0740-3224, DOI 10.1364/JOSAB.36.002221. - ISSN 1520-8540(eISSN)
Примечания : Cited References: 33. - Ministry of Higher Education and Science of the Russian Federation (State Contract N 3.1845.2017/4.6).
Предметные рубрики: BAND
Аннотация: We consider light scattering by two-dimensional arrays of high-index dielectric spheres arranged into a triangular lattice. It is demonstrated that in the case of a triple degeneracy of resonant leaky modes in the gamma point, the scattering spectra exhibit a complicated picture of Fano resonances with extremely narrow linewidth. The Fano features are explained through coupled-mode theory for a Dirac cone spectrum as a signature of optical bound states in the continuum (BIC). It is found that the standing wave in-gamma BIC induces a ring of off-gamma BICs due to different scaling laws for real and imaginary parts of the resonant eigenfrequencies in the Dirac cone spectrum. A quantitative theory of the spectra is proposed.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bulgakov E. N., Maksimov D. N.
Заглавие : Bound states in the continuum and polarization singularities in periodic arrays of dielectric rods
Место публикации : Phys. Rev. A. - 2017. - Vol. 96, Is. 6. - Ст.063833. - ISSN 2469-9926, DOI 10.1103/PhysRevA.96.063833. - ISSN 2469-9934
Примечания : Cited References: 43. - This work was supported by Ministry of Education and Science of Russian Federation (State Contract No. 3.1845.2017/4.6). We appreciate discussions with Almas F. Sadreev.
Аннотация: We consider optical bound states in the continuum (BICs) in periodic arrays of dielectric rods. The full classification of BICs in the above system is provided, including the modes propagating along the axes of the rods and bidirectional BICs propagating both along the axes of the rods and the axis of periodicity. It is shown that the leaky zones supporting the BICs generally have elliptically polarized far-field radiation patterns, with the polarization ellipses collapsing on approach to the BICs in momentum space. That allowed us to apply the concept of polarization singularities and demonstrate that the BICs possess a topological charge defined as the winding number of the polarization direction [Phys. Rev. Lett. 113, 257401 (2014)]. It is found that the evolution of the BICs, including their creation and annihilation, under variation of geometric parameters is controlled by the topological charge. Three scenarios of such evolution for different leaky zones are described. Finally, it is shown that the topological properties of the BICs can be extracted from transmission spectra when the system is illuminated by a plane wave of circular polarization.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bulgakov E. N., Maksimov D. N., Sadreev A. F.
Заглавие : Electric circuit networks equivalent to chaotic quantum billiards
Место публикации : Phys. Rev. E: AMERICAN PHYSICAL SOC, 2005. - Vol. 71, Is. 4. - Ст.46205. - ISSN 1063-651X, DOI 10.1103/PhysRevE.71.046205
Примечания : Cited References: 31
Предметные рубрики: TIME-REVERSAL SYMMETRY
CONDUCTANCE FLUCTUATIONS
STATISTICS
SYSTEMS
EIGENFUNCTIONS
DOTS
Ключевые слова (''Своб.индексиров.''): chaotic quantum billiards--electric resonance circuits (erc)--resonance networks--wave functions--boundary conditions--capacitors--chaos theory--eigenvalues and eigenfunctions--electric inductors--natural frequencies--quantum theory--resonance--statistical mechanics--networks (circuits)
Аннотация: We consider two electric RLC resonance networks that are equivalent to quantum billiards. In a network of inductors grounded by capacitors, the eigenvalues of the quantum billiard correspond to the squared resonant frequencies. In a network of capacitors grounded by inductors, the eigenvalues of the billiard are given by the inverse of the squared resonant frequencies. In both cases, the local voltages play the role of the wave function of the quantum billiard. However, unlike for quantum billiards, there is a heat power because of the resistance of the inductors. In the equivalent chaotic billiards, we derive a distribution of the heat power which describes well the numerical statistics.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bulgakov E. N., Maksimov D. N.
Заглавие : Light enhancement by quasi-bound states in the continuum in dielectric arrays
Место публикации : Opt. Express: Optical Society of America, 2017. - Vol. 25, Is. 13. - P.14134-14147. - ISSN 10944087 (ISSN), DOI 10.1364/OE.25.014134
Примечания : Cited References: 85. - Ministry of Education and Science of Russian Federation (state contract N3.1845.2017/4.6) and RFBR grant 16-02-00314. We appreciate discussions with Almas F. Sadreev and Polina N. Semina.
Ключевые слова (''Своб.индексиров.''): optical constants--optics--asymptotic behaviors--circular cross-sections--dielectric elements--light enhancement--linear periodic arrays--near-infrared range--quasi-bound state--structural resonance--dielectric materials
Аннотация: The article reports on light enhancement by structural resonances in linear periodic arrays of identical dielectric elements. As the basic elements both subwavelength spheres and rods with circular cross section have been considered. In either case it has been demonstrated numerically that high-Q structural resonant modes originated from bound states in the continuum enable near-field amplitude enhancement by factor of 10–25 in the red-to-near infrared range in lossy silicon. The asymptotic behavior of the Q-factor with the number of elements in the array is explained theoretically by analyzing quasi-bound states propagation bands. © 2017 Optical Society of America.
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bulgakov E. N., Maksimov D. N.
Заглавие : Light guiding above the light line in arrays of dielectric nanospheres
Место публикации : Opt. Lett.: Optical Society of America, 2016. - Vol. 41, Is. 16. - P.3888-3891. - ISSN 01469592 (ISSN), DOI 10.1364/OL.41.003888
Примечания : Cited References: 46. - Russian Foundation for Basic Research (RFBR) (16-02-00314).
Предметные рубрики: SUBWAVELENGTH WAVE-GUIDES
OPTICAL MODES
NANOPARTICLES
CHAINS
RESONANCES
PARTICLES
SPHERES
Аннотация: We consider light propagation above the light line in arrays of spherical dielectric nanoparticles. It is demonstrated numerically that quasi-bound leaky modes of the array can propagate both stationary waves and light pulses to a distance of 60 wavelengths at the frequencies close to the bound states in the radiation continuum. A semi-analytical estimate for decay rates of the guided waves is found to match the numerical data to a good accuracy. © 2016 Optical Society of America.
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