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Physics of Wave Phenomena最新文献

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Advanced Spectroscopic Ellipsometry Analysis of Thickness-Dependent Optical Constants and Surface Morphological Variations in Aluminum Thin Films 铝薄膜厚度相关光学常数和表面形态变化的先进椭偏光谱分析
IF 1.1 4区 物理与天体物理
Physics of Wave Phenomena Pub Date : 2025-12-29 DOI: 10.3103/S1541308X25600394
Kh. N. Ahmadova, S. H. Jabarov, M. N. Mirzayev, P. L. Tuan
{"title":"Advanced Spectroscopic Ellipsometry Analysis of Thickness-Dependent Optical Constants and Surface Morphological Variations in Aluminum Thin Films","authors":"Kh. N. Ahmadova,&nbsp;S. H. Jabarov,&nbsp;M. N. Mirzayev,&nbsp;P. L. Tuan","doi":"10.3103/S1541308X25600394","DOIUrl":"10.3103/S1541308X25600394","url":null,"abstract":"<p>In this study, nanosized aluminum (Al) thin films with different thicknesses were deposited on soda lime glass (SLG) substrates using the thermal sputtering technique for optoelectronic applications. Their optical properties were characterized using spectroscopic ellipsometry, a nondestructive method for analyzing film thickness, roughness, and optical constants. The results revealed that variations in film thickness significantly affected the refractive index and extinction coefficient. These changes were closely related to the microstructural differences and surface conditions. The findings highlight the potential of Al thin films for use in photonic and electronic devices, such as photodetectors and reflective coatings. This work provides valuable insight into the design of materials with tailored optical behavior.</p>","PeriodicalId":732,"journal":{"name":"Physics of Wave Phenomena","volume":"33 6","pages":"473 - 479"},"PeriodicalIF":1.1,"publicationDate":"2025-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145847905","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
Obtaining a Spiral Standing Wave Using Wave Phase Conjugation of a Vortex Ultrasonic Beam 利用旋涡超声波束的相位共轭获得螺旋驻波
IF 1.1 4区 物理与天体物理
Physics of Wave Phenomena Pub Date : 2025-12-29 DOI: 10.3103/S1541308X25700359
L. M. Krutyansky, R. V. Klopotov
{"title":"Obtaining a Spiral Standing Wave Using Wave Phase Conjugation of a Vortex Ultrasonic Beam","authors":"L. M. Krutyansky,&nbsp;R. V. Klopotov","doi":"10.3103/S1541308X25700359","DOIUrl":"10.3103/S1541308X25700359","url":null,"abstract":"<p>Wave phase conjugation has been experimentally implemented for a vortex ultrasonic beam. An acoustic vortex was formed in water using a spherically focused emitter and a disk, introducing an angular phase shift. The opposite vortex was generated due to the parametric wave phase conjugation in a magnetostrictive material under electromagnetic pumping at the double frequency. A hydrophone was used to measure the longitudinal and transverse distributions of the amplitude and phase of the sound pressure fields of the incident and conjugate waves near the emitter focus; their mutual correspondence was demonstrated. It was shown that both beams are indeed vortex ones; the conjugate beam has the same chirality as the incident beam. Thus, the beams in the observation region are completely counter-propagating (in the sense of wave vector orientation). A standing wave with a nodal surface in the form of a helicoid was obtained as a result of the interference of the incident and the conjugate vortex beams near the focus.</p>","PeriodicalId":732,"journal":{"name":"Physics of Wave Phenomena","volume":"33 6","pages":"440 - 447"},"PeriodicalIF":1.1,"publicationDate":"2025-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145847909","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
Identification of the Surface Phases Formed on the Ag(111) Face during Molecular Oxygen Adsorption at Room Temperature 室温下分子氧吸附Ag（111）表面相的鉴定
IF 1.1 4区 物理与天体物理
Physics of Wave Phenomena Pub Date : 2025-12-29 DOI: 10.3103/S1541308X25700335
B. V. Andryushechkin, T. V. Pavlova, V. M. Shevlyuga, A. V. Nartova, V. I. Bukhtiyarov
{"title":"Identification of the Surface Phases Formed on the Ag(111) Face during Molecular Oxygen Adsorption at Room Temperature","authors":"B. V. Andryushechkin,&nbsp;T. V. Pavlova,&nbsp;V. M. Shevlyuga,&nbsp;A. V. Nartova,&nbsp;V. I. Bukhtiyarov","doi":"10.3103/S1541308X25700335","DOIUrl":"10.3103/S1541308X25700335","url":null,"abstract":"<p>Adsorption of molecular oxygen on the Ag(111) surface at room temperature has been studied using scanning tunneling microscopy (STM), Auger-electron spectroscopy (AES), temperature programmed desorption (TPD), and density functional theory (DFT). In the early stage of adsorption, the STM images show formation of a disordered phase in the form of dark spots (local oxide (Ag<sub>6</sub>O<sub>6</sub>) rings. Further O<sub>2</sub> dosing leads to the formation of a set of bright objects 5–8 Å in size, which were associated with CO<sub>2</sub> molecules stabilized on the surface due to the presence of H<sub>2</sub>O molecules. Heating of the system to temperatures above 423 K led to partial desorption of silver dioxide molecules and formation of ordered striped (<span>(8 times 2sqrt 3 )</span>) and hexagonal (3 × 3) phases. According to the DFT calculations, the (3 × 3) phase can be interpreted as surface high-temperature silver carbonate (Ag<sub>2</sub>CO<sub>3</sub>), adsorbed on Ag(111). Small areas with the (3 × 3) phase can be seen in STM images even after heating to 540 K, which indicates higher temperature stability of surface carbonates on Ag(111) than it was believed previously.</p>","PeriodicalId":732,"journal":{"name":"Physics of Wave Phenomena","volume":"33 6","pages":"424 - 433"},"PeriodicalIF":1.1,"publicationDate":"2025-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145847902","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
Holographic Method for Separating Acoustic Logging Waves 声波测井波的全息分离方法
IF 1.1 4区 物理与天体物理
Physics of Wave Phenomena Pub Date : 2025-10-29 DOI: 10.3103/S1541308X25700256
V. M. Kuz’kin, S. A. Pereselkov, A. S. Pereselkov, M. M. Palagina
{"title":"Holographic Method for Separating Acoustic Logging Waves","authors":"V. M. Kuz’kin,&nbsp;S. A. Pereselkov,&nbsp;A. S. Pereselkov,&nbsp;M. M. Palagina","doi":"10.3103/S1541308X25700256","DOIUrl":"10.3103/S1541308X25700256","url":null,"abstract":"<p>A holographic method for filtering the casing wave during acoustic logging while drilling is proposed. The method is based on application of a two-dimensional Fourier transform to the phase-correlation diagram. The efficiency of the method is demonstrated by processing acoustic signals of the three-element device “Horizon-90-WAL,” which is designed to measure the parameters of the elastic waves generated in rocks by an electro-acoustic emitter. The phase-correlation diagrams, holograms, and spectrograms of the received signals before and after filtering the casing wave are presented. The method made it possible to identify longitudinal and transverse waves and estimate their propagation rates in the rock.</p>","PeriodicalId":732,"journal":{"name":"Physics of Wave Phenomena","volume":"33 5","pages":"353 - 360"},"PeriodicalIF":1.1,"publicationDate":"2025-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145384738","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
GaAs/AlGaAs Mid-Infrared Quantum Cascade Laser with Substrate-Leaking Mode 衬底泄漏模式的GaAs/AlGaAs中红外量子级联激光器
IF 1.1 4区 物理与天体物理
Physics of Wave Phenomena Pub Date : 2025-10-29 DOI: 10.3103/S1541308X25600370
A. A. Dubinov, V. I. Gavrilenko
{"title":"GaAs/AlGaAs Mid-Infrared Quantum Cascade Laser with Substrate-Leaking Mode","authors":"A. A. Dubinov,&nbsp;V. I. Gavrilenko","doi":"10.3103/S1541308X25600370","DOIUrl":"10.3103/S1541308X25600370","url":null,"abstract":"<p>An original waveguide design for the GaAs/AlGaAs quantum cascade laser with the wavelength of 10 µm and the substrate-leaking mode is proposed. Electromagnetic fields in the proposed waveguide are simulated, and the radiation pattern is calculated in the plane perpendicular to the structure growth plane. Feasibility of this laser with the radiation divergence of less than 4° is shown.</p>","PeriodicalId":732,"journal":{"name":"Physics of Wave Phenomena","volume":"33 5","pages":"399 - 402"},"PeriodicalIF":1.1,"publicationDate":"2025-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145384692","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
Specific Features of the Temperature and Frequency Dependences of the Hypersound Velocity in an Aqueous Solution of 4-Methylpyridine with a Singular Point 具有奇异点的4-甲基吡啶水溶液中超声速的温度和频率特性
IF 1.1 4区 物理与天体物理
Physics of Wave Phenomena Pub Date : 2025-10-29 DOI: 10.3103/S1541308X25700293
N. F. Bunkin, L. M. Sabirov, D. I. Semenov, F. R. Ismailov, Y. T. Juraev, G. N. Umarova
{"title":"Specific Features of the Temperature and Frequency Dependences of the Hypersound Velocity in an Aqueous Solution of 4-Methylpyridine with a Singular Point","authors":"N. F. Bunkin,&nbsp;L. M. Sabirov,&nbsp;D. I. Semenov,&nbsp;F. R. Ismailov,&nbsp;Y. T. Juraev,&nbsp;G. N. Umarova","doi":"10.3103/S1541308X25700293","DOIUrl":"10.3103/S1541308X25700293","url":null,"abstract":"<p>The frequency dependence of sound velocity in the frequency range from 5.4 MHz to 6.1 GHz in an aqueous solution of 4-methylpyridine with a concentration corresponding to the singular point has been experimentally studied. The specific features of the positive sound dispersion and the found negative dispersion in a narrow range of hypersonic frequencies are discussed from the viewpoint of different structural organization of the solution components in the temperature ranges below and above the singular point temperature. An experimental indication of the existence of a structural phase transition in the solution at a temperature below the singular point, described within the mean-field approximation of Landau theory, has been obtained.</p>","PeriodicalId":732,"journal":{"name":"Physics of Wave Phenomena","volume":"33 5","pages":"389 - 398"},"PeriodicalIF":1.1,"publicationDate":"2025-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145384740","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 Tunable Diode Laser Absorption Spectrometry Methods in the Study of Gas Biomarkers of Gut Microbiota Activity 可调谐二极管激光吸收光谱法在肠道微生物活性气体生物标志物研究中的应用
IF 1.1 4区 物理与天体物理
Physics of Wave Phenomena Pub Date : 2025-10-29 DOI: 10.3103/S1541308X25700281
Ya. Ya. Ponurovskii, D. B. Stavrovskii, O. S. Medvedev
{"title":"Application of Tunable Diode Laser Absorption Spectrometry Methods in the Study of Gas Biomarkers of Gut Microbiota Activity","authors":"Ya. Ya. Ponurovskii,&nbsp;D. B. Stavrovskii,&nbsp;O. S. Medvedev","doi":"10.3103/S1541308X25700281","DOIUrl":"10.3103/S1541308X25700281","url":null,"abstract":"<p>Tunable diode laser absorption spectroscopy methods are applied to study gas biomarkers of gut microbiota activity. For this purpose, a hardware and software complex (HSC DLS) and a technique for multicomponent measurements of gas biomarkers in exhaled air are developed. The complex consists of a high-resolution multichannel tunable diode laser spectrometer based on four single-mode near-IR diode lasers with a fiber optic output for measuring O<sub>2</sub>, <sup>12</sup>CO<sub>2</sub>, <sup>13</sup>CO<sub>2</sub>, CH<sub>4</sub>, NH<sub>3</sub>, H<sub>2</sub>S, and H<sub>2</sub>O gas contents, a Herriott multipass cell with a total optical length of 35 m, and a semiconductor selective sensor for background measurements of hydrogen concentrations. To find the concentration, the cross-correlation technique for processing spectra using generalized linear/nonlinear regression is employed. Concentrations of exhaled and gut gases have been measured both in experiments on laboratory animals and in clinical studies on 25 patients. For this purpose, hydrogen–methane and lactulose loading tests have been used. Highly accurate measurements of exhaled and gut gas concentrations performed on the HSC DLS allow continuous online measurement of the composition of gut microbiota biomarkers, assessment of the enzymatic activity and taxonomic composition of the microbiota, and non-invasive diagnosis of various gastro-intestinal diseases.</p>","PeriodicalId":732,"journal":{"name":"Physics of Wave Phenomena","volume":"33 5","pages":"380 - 388"},"PeriodicalIF":1.1,"publicationDate":"2025-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145384739","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
Estimation of the Detection Range for an Underwater Noise Source in the Presence of Background Internal Waves 背景内波存在下水下噪声源探测距离的估计
IF 1.1 4区 物理与天体物理
Physics of Wave Phenomena Pub Date : 2025-10-29 DOI: 10.3103/S1541308X25700244
V. M. Kuz’kin, S. A. Pereselkov, I. M. Kosenko, A. S. Pereselkov
{"title":"Estimation of the Detection Range for an Underwater Noise Source in the Presence of Background Internal Waves","authors":"V. M. Kuz’kin,&nbsp;S. A. Pereselkov,&nbsp;I. M. Kosenko,&nbsp;A. S. Pereselkov","doi":"10.3103/S1541308X25700244","DOIUrl":"10.3103/S1541308X25700244","url":null,"abstract":"<p>The maximum detection range for an underwater noise source in the presence of internal waves, conditioning the sound-field mode coupling, has been estimated in the framework of holographic processing of hydroacoustic broadband signals. The estimation was performed based on the results of numerical simulation of the sound field decay with distance and experimental data on the spectral characteristics of the noise emission of a moving underwater craft and the background interference of the water area. A single receiver and a linear portable antenna have been considered as receiving modules. The input signal-to-noise ratio at which the maximum detection range is attained is estimated. The probabilities of true detection at specified false alarm probabilities are calculated based on the Neumann–Pearson criterion for the input signal-to-noise ratio corresponding to the maximum detection range. A comparative analysis of the maximum detection range in the presence and in the absence of background internal waves is performed.</p>","PeriodicalId":732,"journal":{"name":"Physics of Wave Phenomena","volume":"33 5","pages":"346 - 352"},"PeriodicalIF":1.1,"publicationDate":"2025-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145384742","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
Dissipative Effects in the Propagation of Linear Waves in Narrow Tubes of Variable Cross Section 线性波在变截面窄管中传播的耗散效应
IF 1.1 4区 物理与天体物理
Physics of Wave Phenomena Pub Date : 2025-10-29 DOI: 10.3103/S1541308X25700268
V. A. Gusev, K. O. Komarovskii
{"title":"Dissipative Effects in the Propagation of Linear Waves in Narrow Tubes of Variable Cross Section","authors":"V. A. Gusev,&nbsp;K. O. Komarovskii","doi":"10.3103/S1541308X25700268","DOIUrl":"10.3103/S1541308X25700268","url":null,"abstract":"<p>Equations are obtained that allow for dissipation during propagation of acoustic wave in narrow tubes of variable cross section. The wave transmission coefficient through the tube of a special design is calculated by two methods. It is shown that when viscosity in tubes of variable cross section is taken into account, the continuity equation should be used as the equation of connection between pressure and vibrational speed.</p>","PeriodicalId":732,"journal":{"name":"Physics of Wave Phenomena","volume":"33 5","pages":"361 - 367"},"PeriodicalIF":1.1,"publicationDate":"2025-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145384743","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
Wave Properties of a Three-Layer Metamaterial Structure Controlling Polarization of Microwave Radiation in the X Range 控制X波段微波极化的三层超材料结构的波动特性
IF 1.1 4区 物理与天体物理
Physics of Wave Phenomena Pub Date : 2025-10-29 DOI: 10.3103/S1541308X2570030X
V. I. Golovanov, K. F. Shipilov
{"title":"Wave Properties of a Three-Layer Metamaterial Structure Controlling Polarization of Microwave Radiation in the X Range","authors":"V. I. Golovanov,&nbsp;K. F. Shipilov","doi":"10.3103/S1541308X2570030X","DOIUrl":"10.3103/S1541308X2570030X","url":null,"abstract":"<p>Frequency dependencies of wave properties of a structure consisting of three layers of flexible metasurfaces are experimentally studied. Transmission and reflections spectra are obtained both for individual metasurface layers with conducting elements and for the two-layer and three-layer structures. In the proposed geometry of the structure with individual layers, it becomes possible to noticeably reduce the intensity of the transmitted and reflected waves in the X range of microwave radiation by introducing violated geometry along the direction of electromagnetic wave propagation in the metamaterial structure due to the asymmetric transmission effect.</p>","PeriodicalId":732,"journal":{"name":"Physics of Wave Phenomena","volume":"33 5","pages":"403 - 408"},"PeriodicalIF":1.1,"publicationDate":"2025-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145384744","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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