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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Slabko V. V., Popov A. K., Tkachenko V. A., Myslivets S. A.
Заглавие : Three-wave mixing of ordinary and backward electromagnetic waves: Extraordinary transients in the nonlinear reflectivity and parametric amplification
Место публикации : Opt. Lett.: Optical Society of America, 2016. - Vol. 41, Is. 17. - P.3976-3979. - ISSN 01469592 (ISSN), DOI 10.1364/OL.41.003976
Ключевые слова (''Своб.индексиров.''): amplification--circular waveguides--electromagnetic waves--mixing--nonlinear optics--phase matching--reflection--backward waves--energy fluxes--non-linear reflectivity--optical parametric amplification--parametric amplification--three wave mixing--transient process--optical parametric amplifiers
Аннотация: Three-wave mixing of ordinary and backward electromagnetic waves in a pulsed regime is investigated in the metamaterials that enable the coexistence and phase-matching of such waves. It is shown that the opposite direction of phase velocity and energy flux in backward waves gives rise to extraordinary transient processes due to greatly enhanced optical parametric amplification and frequency up- and down-shifting nonlinear reflectivity. The differences are illustrated through comparison with the counterparts in ordinary, co-propagating settings. © 2016 Optical Society of America.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Arkhipkin V. G., Heller Y. I., Popov A. K., Provorov A. S.
Заглавие : Frequency mixing in a gas-filled wave-guide for VUV light generation
Разночтения заглавия :авие SCOPUS: Frequency mixing in a gas-filled waveguide for VUV light generation
Место публикации : Appl. Phys. B. - 1985. - Vol. 37, Is. 2. - P.93-97. - ISSN 0721-7269, DOI 10.1007/BF00692555
Примечания : Cited References: 17
Ключевые слова (''Своб.индексиров.''): 42.65--light - nonlinear optical effects--waveguides, optical--frequency mixing--gas-filled waveguide--ultraviolet radiation
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ershov A. E., Gerasimov V. S., Gavrilyuk A. P., Karpov S. V., Zakomirnyi V. I., Rasskazov I. L., Polyutov S. P.
Заглавие : Thermal limiting effects in optical plasmonic waveguides
Место публикации : J. Quant. Spectrosc. Radiat. Transf.: Elsevier, 2017. - Vol. 191. - P.1-6. - ISSN 00224073 (ISSN), DOI 10.1016/j.jqsrt.2017.01.023
Примечания : Cited References: 51. - This work was performed within the State contract of the RF Ministry of Education and Science for Siberian Federal University for scientific research in 2017-2019 and SB RAS Program No II.2P (0358-2015-0010). The numerical calculations were performed using the MVS-1000M cluster at the Institute of Computational Modeling, Federal Research Center KSC SB Russian Academy of Sciences.
Ключевые слова (''Своб.индексиров.''): plasmon resonance--optical plasmonic waveguide--surface plasmon polariton--thermal effects
Аннотация: We have studied thermal effects occurring during excitation of optical plasmonic waveguide (OPW) in the form of linear chain of spherical Ag nanoparticles by pulsed laser radiation. It was shown that heating and subsequent melting of the first irradiated particle in a chain can significantly deteriorate the transmission efficiency of OPW that is the crucial and limiting factor and continuous operation of OPW requires cooling devices. This effect is caused by suppression of particle's surface plasmon resonance due to reaching the melting point temperature. We have determined optimal excitation parameters which do not significantly affect the transmission efficiency of OPW. © 2017
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Ershov A. E., Gerasimov R.E., Rasskazov I. L., Zakomirnyi V. I., Gavrilyuk A.P., Karpov S. V., Polyutov S. P.
Заглавие : Thermal effects in optical plasmonic waveguides
Коллективы : International Conference on Coherent and Nonlinear Optics, International Conference on Lasers, Applications, and Technologies
Место публикации : The International Conference on Coherent and Nonlinear Optics; The Lasers, Applications, and Technologies ICONO/LAT 2016. - 2016. - Ст.IThL14. - P.79-80
Аннотация: We investigate the influence of the heating of the optical plasmonic waveguide in the form of chains of the plasmonic nanoparticles by laser radiation on its transmission properties
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bulgakov E. N., Sadreev A. F.
Заглавие : The effect of bound states in microwave waveguides on electromagnetic wave propagation
Место публикации : Tech. Phys.: AMER INST PHYSICS, 2001. - Vol. 46, Is. 10. - P1281-1290. - ISSN 1063-7842, DOI 10.1134/1.1412064
Примечания : Cited References: 15
Предметные рубрики: RADIATION-FIELD
HALL RESISTANCE
QUANTUM WIRES
GUIDES
Аннотация: The transmission of a TE microwave field with a frequency omega through Gamma, T, and X waveguide junctions filled with a ferromagnetic is considered. These junctions are known to have bound states with below-cutoff frequencies. A probing microwave radiation with a frequency Omega applied to the scattering region generates magnetic oscillations with frequencies omega + n Omega (where n = 0, +/-1, +/-2, ...), which resonantly combine with the bound waveguide states. This effect provides for a new method of studying bound waveguide states and efficiently controlling the transmission of microwave radiation. (C) 2001 MAIK "Nauka/Interperiodica".
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Luna-Acosta G. A., Mendez-Bermudez J. A., Seba P., Pichugin K. N.
Заглавие : Classical versus quantum structure of the scattering probability matrix: Chaotic waveguides
Место публикации : Phys. Rev. E: AMER PHYSICAL SOC, 2002. - Vol. 65, Is. 4. - Ст.46605. - ISSN 1539-3755, DOI 10.1103/PhysRevE.65.046605
Примечания : Cited References: 47
Предметные рубрики: SEMICLASSICAL CROSS-SECTION
CONDUCTANCE FLUCTUATIONS
S-MATRIX
BALLISTIC-TRANSPORT
WEAK-LOCALIZATION
CAVITIES
COLLISIONS
MICROSTRUCTURES
DENSITY
CHANNEL
Ключевые слова (''Своб.индексиров.''): chaos theory--matrix algebra--optical waveguides--quantum theory--scattering--wave equations--chaotic cavities--chaotic waveguides--quantum structure--scattering probability matrix--quantum optics
Аннотация: The purely classical counterpart of the scattering probability matrix (SPM) \S(n,m)\(2) of the quantum scattering matrix S is defined for two-dimensional quantum waveguides for an arbitrary number of propagating modes M. We compare the quantum and classical structures of \S(n,m)\(2) for a waveguide with generic Hamiltonian chaos. It is shown that even for a moderate number of channels, knowledge of the classical structure of the SPM allows us to predict the global structure of the quantum one and, hence, understand important quantum transport properties of waveguides in terms of purely classical dynamics. It is also shown that the SPM, being an intensity measure, can give additional dynamical information to that obtained by the Poincare maps.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Maksimov D. N., Sadreev A. F.
Заглавие : Bound states in elastic waveguides
Место публикации : Phys. Rev. E: AMERICAN PHYSICAL SOC, 2006. - Vol. 74, Is. 1. - Ст.16201. - ISSN 1539-3755, DOI 10.1103/PhysRevE.74.016201
Примечания : Cited References: 26
Предметные рубрики: CLASSICALLY UNBOUND SYSTEM
QUANTUM WIRES
Аннотация: We consider numerically the L-, T-, and X-shaped elastic waveguides with the Dirichlet boundary conditions for in-plane deformations (displacements) which obey the vectorial Navier-Cauchy equation. In the X-shaped waveguide we show the existence of a doubly degenerate bound state with frequency below the first symmetrical cutoff frequency, which belongs to the two-dimensional irreducible representation E of symmetry group C-4v. Moreover the next bound state is below the next antisymmetric cutoff frequency. This bound state belongs to the irreducible representation A(2). The T-shaped waveguide has only one bound state while the L-shaped one has no bound states.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bulgakov E. N., Sadreev A. F.
Заглавие : Mixing of bound states with electron transport by a radiation field in waveguides
Место публикации : J. Exp. Theor. Phys.: AMER INST PHYSICS, 1998. - Vol. 87, Is. 6. - P1058-1067. - ISSN 1063-7761, DOI 10.1134/1.558621
Примечания : Cited References: 27
Предметные рубрики: CLASSICALLY UNBOUND SYSTEM
HALL RESISTANCE ANOMALIES
QUANTUM WAVE-GUIDES
POINT CONTACTS
WIRES
TIME
CONDUCTANCE
Аннотация: Electron transmission in the two-, three-, and four-terminal nanostructures is considered under the influence of a radiation field. The frequency of the radiation field is tuned to the transition between the energy of a bound state and the Fermi energy of the incident electrons. The radiation induced resonant peaks and dips of the electron transport are exhibited for zero and low magnetic fields. It is shown that rotation of the radiation field polarization can effectively control the electron transport into different electrodes attached to the structures because of the symmetry of the structures. The resonant anomalies of the Hall resistance are found in a weak magnetic field. (C) 1998 American Institute of Physics. [S1063-7761(98)00412-0].
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Nabol S. V., Pankin P. S., Maksimov D. N., Timofeev I. V.
Заглавие : Fabry-Perot bound states in the continuum in an anisotropic photonic crystal
Место публикации : Phys. Rev. B. - 2022. - Vol. 106, Is. 24. - Ст.245403. - ISSN 24699950 (ISSN), DOI 10.1103/PhysRevB.106.245403. - ISSN 24699969 (eISSN)
Примечания : Cited References: 42. - We acknowledge discussions with Almas F. Sadreev. This study was supported by the Council on Grants of the President of the Russian Federation (MK-4012.2021.1.2)
Аннотация: An anisotropic photonic crystal containing two anisotropic defect layers is considered. It is demonstrated that the system can support a Fabry-Perot bound state in the continuum (FP-BIC). A fully analytic solution of the scattering problem as well as a condition for FP-BIC have been derived in the framework of the temporal coupled-mode theory.
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Huang L., Jia B., Pilipchuk A. S., Chiang Y., Huang S., Li J., Shen C., Bulgakov E. N., Deng F., Powell D. A., Cummer S. A., Li Y., Sadreev A. F., Miroshnichenko A. E.
Заглавие : General framework of bound states in the continuum in an open acoustic resonator
Место публикации : Phys. Rev. Appl. - 2022. - Vol. 18, Is. 5. - Ст.054021. - ISSN 23317019 (eISSN), DOI 10.1103/PhysRevApplied.18.054021
Примечания : Cited References: 47. - L.H. and A.E.M. are supported by the Australian Research Council Discovery Project (Grant No. DP200101353) and the UNSW Scientia Fellowship program. Y.K.C. and D.A.P. are supported by the Australian Research Council Discovery Project (Grant No. DP200101708). B.J., S.H., and Y.L. are supported by the National Natural Science Foundation of China (Grant No. 12074286) and the Shanghai Science and Technology Committee (Grant No. 21JC1405600). A.P., E.B., and A.S. are supported by the Russian Science Foundation (Grant No. 22-12-00070)
Аннотация: Bound states in the continuum (BICs) provide a viable way of achieving high-Q resonances in both photonics and acoustics. In this work, we propose a general method of constructing Friedrich-Wintgen (FW) BICs and accidental BICs in a coupled acoustic waveguide-resonator system. We demonstrate that FW BICs can be achieved with arbitrary two degenerate resonances in a closed resonator, regardless of whether they have the same or opposite parity. Moreover, their eigenmode profiles can be arbitrarily engineered by adjusting the position of the attached waveguide. This suggests an effective way of continuously switching the nature of the BICs from FW BICs to symmetry-protected BICs or accidental BICs. Also, such BICs are sustained in the coupled waveguide-resonator system with shapes such as rectangles, ellipses, and rhomboids. These interesting phenomena are well explained by the two-level effective non-Hermitian Hamiltonian, where two strongly coupled degenerate modes play a major role in forming such FW BICs. Additionally, we find that such an open system also supports accidental BICs in geometry space instead of momentum space via tuning the position of the attached waveguide, which is attributed to the quenched coupling between the waveguide and eigenmodes of the closed cavity. Finally, we fabricate a series of three-dimensional coupled resonator waveguides and experimentally verify the existence of FW BICs and accidental BICs by measuring the transmission spectra. Our results complement the current BIC library in acoustics and provide nice routes for designing acoustic devices, such as acoustic absorbers, filters, and sensors.
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