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Physics of Wave Phenomena最新文献

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Relationship between Classical and Quantum Mechanics in Micellar Aqueous Solutions of Surfactants 表面活性剂微粒水溶液中的经典力学与量子力学之间的关系
IF 1.1 4区 物理与天体物理
Physics of Wave Phenomena Pub Date : 2024-03-14 DOI: 10.3103/S1541308X24010072
Partha Ghose, Yuri Mirgorod
{"title":"Relationship between Classical and Quantum Mechanics in Micellar Aqueous Solutions of Surfactants","authors":"Partha Ghose,&nbsp;Yuri Mirgorod","doi":"10.3103/S1541308X24010072","DOIUrl":"10.3103/S1541308X24010072","url":null,"abstract":"<p>Micellar aqueous solutions of ionic surfactants have been observed to exhibit proton delocalization (the nuclear quantum effect) and to oscillate between a low density (LDL) and a high-density liquid (HDL) state of water at a fixed temperature. It is shown in this paper that such phenomena can be explained with the help of the interpolating Schrӧdinger equation proposed by Ghose. The nuclear quantum effect can be described by the tunneling of a harmonic oscillator in a symmetric double-well potential, and an ensemble of harmonic oscillators can model the LDL-HDL oscillations. The thermodynamics of such harmonic oscillators has been worked out showing continuous transitions between the quantum and classical limits.</p>","PeriodicalId":732,"journal":{"name":"Physics of Wave Phenomena","volume":"32 1","pages":"34 - 42"},"PeriodicalIF":1.1,"publicationDate":"2024-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140155324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Localization of Multiple Vibration Sources Using a Modified MUSIC Algorithm 使用改进的 MUSIC 算法定位多个振动源
IF 1.1 4区 物理与天体物理
Physics of Wave Phenomena Pub Date : 2024-03-14 DOI: 10.3103/S1541308X24010059
N. A. Kutuzov, A. A. Rodionov, A. V. Stulenkov
{"title":"Localization of Multiple Vibration Sources Using a Modified MUSIC Algorithm","authors":"N. A. Kutuzov,&nbsp;A. A. Rodionov,&nbsp;A. V. Stulenkov","doi":"10.3103/S1541308X24010059","DOIUrl":"10.3103/S1541308X24010059","url":null,"abstract":"<p>We propose methods for estimation of the number of the sources and their localization in complex mechanical systems. These methods are based on the matching vibrational field obtained using finite element modeling with the measured field from vibration sensors. A modification of the MUSIC (Multiple Signal Classification) algorithm, which is often employed in direction-of-arrival estimation of wavefield sources, is effectively used to localize several simultaneously operating sources of vibration. Numerical simulation and experimental testing in mechanical systems showed the superior efficiency of the proposed method in comparison with the methods previously used to solve similar problems.</p>","PeriodicalId":732,"journal":{"name":"Physics of Wave Phenomena","volume":"32 1","pages":"56 - 66"},"PeriodicalIF":1.1,"publicationDate":"2024-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140155151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Phase Properties of High Harmonics and Spatial Structure of the Harmonic Beam 高次谐波的相位特性和谐波波束的空间结构
IF 1.1 4区 物理与天体物理
Physics of Wave Phenomena Pub Date : 2024-03-14 DOI: 10.3103/S1541308X24010096
V. V. Strelkov
{"title":"Phase Properties of High Harmonics and Spatial Structure of the Harmonic Beam","authors":"V. V. Strelkov","doi":"10.3103/S1541308X24010096","DOIUrl":"10.3103/S1541308X24010096","url":null,"abstract":"<p>The harmonic phase dependence on the laser field intensity is one of the key properties of high-harmonic generation (HHG) in intense laser field. We have studied this dependence both analytically and numerically. Our method, in contrast to other approaches, does not use any phenomenological parameters. We suggest an analytical equation describing the dependence of the harmonic phase on the laser intensity. Analytical results agree with the results of numerical integration of the 3D time-dependent Schrödinger equation (TDSE) for a model one-electron atom in external laser field. We compare the analytical and numerical results obtained for two different fundamental wavelengths and various fundamental intensities. The investigated dependence of the harmonic phase leads to curved harmonic wavefront in the case of generation in the laser beam focus. We suggest an equation for this curvature, whose solution agrees well with the numerical results. Finally, we present an equation for the radius of curvature of the harmonic wavefront generated at some distance from the focus of the generating beam.</p>","PeriodicalId":732,"journal":{"name":"Physics of Wave Phenomena","volume":"32 1","pages":"27 - 33"},"PeriodicalIF":1.1,"publicationDate":"2024-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140155153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of the Delay of Thermal Emission Fronts upon Pulsed Laser–Thermal Excitation of Er2O3 and Ruby 脉冲激光热激发 Er2O3 和红宝石时热发射前沿延迟的影响
IF 1.1 4区 物理与天体物理
Physics of Wave Phenomena Pub Date : 2024-03-14 DOI: 10.3103/S1541308X24010060
V. M. Marchenko
{"title":"Effect of the Delay of Thermal Emission Fronts upon Pulsed Laser–Thermal Excitation of Er2O3 and Ruby","authors":"V. M. Marchenko","doi":"10.3103/S1541308X24010060","DOIUrl":"10.3103/S1541308X24010060","url":null,"abstract":"<p>The spectra and kinetics of selective and continuum thermodynamically equilibrium emission of electromagnetic radiation from Er<sub>2</sub>O<sub>3</sub> microcrystals and a ruby single crystal in the visible and near-IR spectral regions under laser–thermal excitation by electric-discharge CO<sub>2</sub> lasers at a wavelength λ = 10.6 µm in the cw and pulsed modes have been experimentally investigated. The effect of the delay of continuum emission fronts and intensity peaks relative to laser pulses is explained by the difference in the temperatures of the heated layer and electromagnetic radiation. The delay time of the electromagnetic emission maximum is the characteristic time for establishing thermal equilibrium.</p>","PeriodicalId":732,"journal":{"name":"Physics of Wave Phenomena","volume":"32 1","pages":"9 - 14"},"PeriodicalIF":1.1,"publicationDate":"2024-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140155142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Inverse Design of One-Dimensional Topological Photonic Systems Using Deep Learning 利用深度学习逆向设计一维拓扑光子系统
IF 1.1 4区 物理与天体物理
Physics of Wave Phenomena Pub Date : 2024-03-14 DOI: 10.3103/S1541308X24010047
M. El Ghafiani, M. Elaouni, S. Khattou, Y. Rezzouk, M. Amrani, O. Marbouh, M. Boutghatin, A. Talbi, E. H. El Boudouti, B. Djafari-Rouhani
{"title":"Inverse Design of One-Dimensional Topological Photonic Systems Using Deep Learning","authors":"M. El Ghafiani,&nbsp;M. Elaouni,&nbsp;S. Khattou,&nbsp;Y. Rezzouk,&nbsp;M. Amrani,&nbsp;O. Marbouh,&nbsp;M. Boutghatin,&nbsp;A. Talbi,&nbsp;E. H. El Boudouti,&nbsp;B. Djafari-Rouhani","doi":"10.3103/S1541308X24010047","DOIUrl":"10.3103/S1541308X24010047","url":null,"abstract":"<p>We demonstrate a novel approach to inversely design one-dimensional (1D) photonic stubbed systems with targeted topological properties by leveraging the power of deep learning. The process involves developing a data-driven model to accurately predict the geometric parameters of the photonic system based on a label vector that encodes the targeted topological properties. A tandem network comprising an inverse network connected to a pre-trained forward network is trained to efficiently learn the intricate relationship between the system’s topological properties and the corresponding geometry. After training, the model is shown to effectively perform the inverse design task. The study’s outcomes give new perspectives for the design of topological photonic systems.</p>","PeriodicalId":732,"journal":{"name":"Physics of Wave Phenomena","volume":"32 1","pages":"48 - 55"},"PeriodicalIF":1.1,"publicationDate":"2024-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140155319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Separation Methods of Laser-Induced Carbon Chains in Graphite-Ethanol Suspensions 石墨-乙醇悬浮液中激光诱导碳链的分离方法
IF 1.1 4区 物理与天体物理
Physics of Wave Phenomena Pub Date : 2024-03-14 DOI: 10.3103/S1541308X24010023
K. K. Ashikkalieva, V. V. Kononenko, N. R. Arutyunyan, E. V. Zavedeev, E. V. Akhlyustina, A. L. Vasiliev, V. I. Konov
{"title":"Separation Methods of Laser-Induced Carbon Chains in Graphite-Ethanol Suspensions","authors":"K. K. Ashikkalieva,&nbsp;V. V. Kononenko,&nbsp;N. R. Arutyunyan,&nbsp;E. V. Zavedeev,&nbsp;E. V. Akhlyustina,&nbsp;A. L. Vasiliev,&nbsp;V. I. Konov","doi":"10.3103/S1541308X24010023","DOIUrl":"10.3103/S1541308X24010023","url":null,"abstract":"<p>Irradiation of carbon-containing liquids by ultrashort laser pulses makes it possible to synthesize linear carbon chains (polyynes), which are of great practical interest for optics and electronics. To obtain homogeneous suspensions of polyynes, it is important to study the stability of synthesized structures and search for efficient methods of separating polyynes from laser processing byproducts. In this study polyynes were synthesized using irradiation of graphite suspensions in ethanol by a picosecond laser source (τ = 10 ps, <i>f</i> = 10 kHz, λ = 1064 nm). The processed suspensions contained polyynes of different length (C<sub>8</sub>H<sub>2</sub>–C<sub>16</sub>H<sub>2</sub>) and some other carbon components. The stability of polyynes was investigated, and a systematic comparison of the results of separating polyynes from other components of irradiated suspensions using filtering, sedimentation, and centrifugation was performed. The optical properties of synthesized polyynes were investigated by optical spectroscopy. The laser processing byproducts were studied using transmission electron microscopy.</p>","PeriodicalId":732,"journal":{"name":"Physics of Wave Phenomena","volume":"32 1","pages":"1 - 8"},"PeriodicalIF":1.1,"publicationDate":"2024-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140155323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
On Local and Integral Forms of Energy Conservation Laws in the Scattering Theory 论散射理论中能量守恒定律的局部和积分形式
IF 1.1 4区 物理与天体物理
Physics of Wave Phenomena Pub Date : 2024-03-14 DOI: 10.3103/S1541308X24010011
L. A. Apresyan, T. V. Vlasova, V. I. Krasovskii
{"title":"On Local and Integral Forms of Energy Conservation Laws in the Scattering Theory","authors":"L. A. Apresyan,&nbsp;T. V. Vlasova,&nbsp;V. I. Krasovskii","doi":"10.3103/S1541308X24010011","DOIUrl":"10.3103/S1541308X24010011","url":null,"abstract":"<p>Consideration is given to various forms of energy balance relations that describe the influence of the scatterer on radiation of given currents and are connected with the classical description of the Purcell factor and with the optical theorem. It is shown that these relations hold not only integrally but also locally, i.e., for integrands. A transition is described from the ordinary integral form of the scattering problem (of the type of the Lippmann–Schwinger equation) to the system of two equations for the Hermitian and anti-Hermitian parts of the scattering T-operator, so that for the former the diagonal matrix element corresponding to an arbitrary incident wave directly gives the general form of the optical theorem. A particular case is also described, which concerns nonradiating currents in the absence of the scatterer with their radiation loss being only due to the presence of a scatterer.</p>","PeriodicalId":732,"journal":{"name":"Physics of Wave Phenomena","volume":"32 1","pages":"19 - 26"},"PeriodicalIF":1.1,"publicationDate":"2024-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140155147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Generation of High-Order Harmonics by Gallium Ions in Intense Laser Pulse 强激光脉冲中镓离子产生的高阶谐波
IF 1.1 4区 物理与天体物理
Physics of Wave Phenomena Pub Date : 2023-12-28 DOI: 10.3103/S1541308X23060079
A. I. Magunov, V. V. Strelkov, S. N. Yudin
{"title":"Generation of High-Order Harmonics by Gallium Ions in Intense Laser Pulse","authors":"A. I. Magunov,&nbsp;V. V. Strelkov,&nbsp;S. N. Yudin","doi":"10.3103/S1541308X23060079","DOIUrl":"10.3103/S1541308X23060079","url":null,"abstract":"<p>The spectrum of high-order harmonics generated in interaction of an intense femtosecond laser pulse with a singly charged gallium ion is theoretically investigated. The results of the calculations reveal enhancement of odd harmonics that are in resonance with the frequency of the transition from the ground state to the odd autoionizing state 3d<sup>9</sup>4s<sup>2</sup>4p <sup>1</sup>P<sub>1</sub> and harmonics that correspond to the multiphoton resonance with the even autoionizing states 3d<sup>10</sup>4p5p <sup>1</sup>S<sub>0</sub> and <sup>1</sup>D<sub>2</sub> (dark states) and are one laser frequency away from them. The effect of resonant enhancement of harmonics was earlier observed in experiments on gallium targets with a plasma plume.</p>","PeriodicalId":732,"journal":{"name":"Physics of Wave Phenomena","volume":"31 6","pages":"418 - 426"},"PeriodicalIF":1.1,"publicationDate":"2023-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139055764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Application of Warping Transform for the Analysis of the Acoustic Mode Coupling due to a Local Inhomogeneity in Shallow Water 应用翘曲变换分析浅水局部非均质性引起的声学模式耦合
IF 1.1 4区 物理与天体物理
Physics of Wave Phenomena Pub Date : 2023-12-28 DOI: 10.3103/S1541308X23060067
A. A. Lunkov, M. A. Shermeneva
{"title":"Application of Warping Transform for the Analysis of the Acoustic Mode Coupling due to a Local Inhomogeneity in Shallow Water","authors":"A. A. Lunkov,&nbsp;M. A. Shermeneva","doi":"10.3103/S1541308X23060067","DOIUrl":"10.3103/S1541308X23060067","url":null,"abstract":"<p>The possibility of observing the mode coupling effect, caused by a local inhomogeneity, is studied for a long-range stationary acoustic track between a single sound source and a single receiver in a shallow-water waveguide. This effect manifests itself in the form of oscillations of normal mode amplitudes in the frequency domain and can be used to localize inhomogeneities. An analytical formula linking the oscillation period of the first-mode amplitude with the distance to the inhomogeneity is proposed. Numerical experiments with a model inhomogeneity in the form of a local bottom rise show that the frequency dependence of the mode amplitude can be selected not only at a vertical line array but also at a single receiver, with the use of warping transform. In this case, the receiver depth should correspond to zero of the second-mode vertical profile. The dependence of the mode amplitude oscillations on the local inhomogeneity size is discussed.</p>","PeriodicalId":732,"journal":{"name":"Physics of Wave Phenomena","volume":"31 6","pages":"396 - 405"},"PeriodicalIF":1.1,"publicationDate":"2023-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139051229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Phase Invariants of Vector–Scalar Fields Excited in the Shallow Sea by Multipole Sources 多极源在浅海激发的矢量-标量场的相位不变性
IF 1.1 4区 物理与天体物理
Physics of Wave Phenomena Pub Date : 2023-12-28 DOI: 10.3103/S1541308X23060055
G. N. Kuznetsov, A. N. Stepanov
{"title":"Phase Invariants of Vector–Scalar Fields Excited in the Shallow Sea by Multipole Sources","authors":"G. N. Kuznetsov,&nbsp;A. N. Stepanov","doi":"10.3103/S1541308X23060055","DOIUrl":"10.3103/S1541308X23060055","url":null,"abstract":"<p>The concept of a phase invariant (PI), introduced in our previous studies, is used to describe the sound-field phase distribution in an underwater waveguide in the distance–frequency plane. This concept is similar to the classical waveguide Chuprov invariant (ChI), which specifies the slopes of constant-field intensity lines in the same plane. The PIs of vector–scalar fields excited by multipole sources are investigated for the first time in this paper. It is shown that, as well as in the case of a monopole source, PI is a stable characteristic of a sound field. It is demonstrated by numerical simulation that the PI value in shallow water barely depends on the source directional pattern, the path length, the frequency of emitted signal, and the waveguide characteristics. Significant deviations of PI from its basic value (–1) are observed only in the vicinity of interference minima (in the phase-dislocation zones).</p>","PeriodicalId":732,"journal":{"name":"Physics of Wave Phenomena","volume":"31 6","pages":"371 - 382"},"PeriodicalIF":1.1,"publicationDate":"2023-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139051627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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