Physics of Wave Phenomena最新文献

Effect of Short Wavelength Pumping in High-Order Harmonic Generation by Gallium Ions in Laser Field 激光场中镓离子产生高次谐波的短波抽运效应

IF 1.1 4区物理与天体物理

Physics of Wave Phenomena Pub Date : 2025-05-26 DOI: 10.3103/S1541308X25700025

A. I. Magunov, M. M. Popova, S. N. Yudin

引用次数: 0

Ion Acoustic Shock Waves with Nonextensive Electron Distributions in a Five-Component Cometary Plasma 五组分彗星等离子体中非广泛电子分布的离子声激波

IF 1.1 4区物理与天体物理

Physics of Wave Phenomena Pub Date : 2025-05-26 DOI: 10.3103/S1541308X25700098

N. T. Willington, C. Venugopal

{"title":"Ion Acoustic Shock Waves with Nonextensive Electron Distributions in a Five-Component Cometary Plasma","authors":"N. T. Willington, C. Venugopal","doi":"10.3103/S1541308X25700098","DOIUrl":"10.3103/S1541308X25700098","url":null,"abstract":"This work analyzes ion-acoustic shock waves in the presence of an external noise or perturbation by deriving the Korteweg–de Vries–Burgers–Kuramoto (KdVBK) equation. Our plasma model is a five-component magnetized, temperature anisotropic, cometary plasma consisting of two components of electrons (of solar and cometary origin) described by nonextensive distribution functions, a drifting ion component (H3O+) and a pair of oppositely charged oxygen ion components. We have studied the solution of the KdVBK equation in the vicinity of the “inner shock” that occurred at a cometocentric distance of roughly 4000 km for comet 1P/Halley. A drop in the shock amplitude is observed with an increase in the nonextensive parameter of the electrons and as the temperature of the cometary electrons rise. It is found that a shock wave oriented perpendicular to the direction of the magnetic field dissipates more quickly than one that is parallel. As the values of the parallel pressures of H3O+, O+ and O− ions increase, the shock amplitude reduces. The dissipation coefficient C is found to rise with increasing kinematic viscosities of ions. Additionally, the shock amplitude exhibits a direct correlation with the ambient magnetic field strength. Also, in general, the shock amplitudes are slightly greater when described by the KdVBK equation rather than the KdVB equation.","PeriodicalId":732,"journal":{"name":"Physics of Wave Phenomena","volume":"33 2","pages":"146 - 158"},"PeriodicalIF":1.1,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144135395","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

Optical Properties of 3a-Graphene Nanoribbons in Single-Wall Carbon Nanotubes 单壁碳纳米管中3a-石墨烯纳米带的光学性质

IF 1.1 4区物理与天体物理

Physics of Wave Phenomena Pub Date : 2025-05-26 DOI: 10.3103/S1541308X25700049

P. V. Fedotov, A. A. Tonkikh, E. D. Obraztsova

{"title":"Optical Properties of 3a-Graphene Nanoribbons in Single-Wall Carbon Nanotubes","authors":"P. V. Fedotov, A. A. Tonkikh, E. D. Obraztsova","doi":"10.3103/S1541308X25700049","DOIUrl":"10.3103/S1541308X25700049","url":null,"abstract":"Narrow graphene nanoribbons with the width of three carbon atoms and the edge structure of the armchair type (3a-GNRs) are synthesized in inner channels of single-wall carbon nanotubes (SWCNTs) about 1.8 nm in diameter. The method used involves gas-phase filling of nanotubes with 4,4-dibromo-p-terphenyl molecules and subsequent polymerization of individual molecules into graphene nanoribbons inside the tubes. We have established that 3a-GNRs encapsulated in single-wall carbon nanotubes retain their optical and electronic properties. Investigation by the Raman scattering method confirms the structure and high quality of the resulting hybrid systems—3a-GNR@SWCNTs. Like free 3a-GNRs, encapsulated graphene nanoribbons show bright luminescence in the UV/blue and green spectral regions with characteristic features with maxima at the wavelengths of 385 and 555 nm in films and 410 nm in aqueous suspensions of 3a-GNR@SWCNTs. Carbon nanotubes used as containers of graphene nanoribbons allow not only protecting the GNR structure but also individualizing GNRs for subsequent optical measurements. The results are important for further investigations of optical properties of narrow GNR@SWCNTs and practical applications of GNRs in development of photosensitive optoelectronics elements.","PeriodicalId":732,"journal":{"name":"Physics of Wave Phenomena","volume":"33 2","pages":"102 - 109"},"PeriodicalIF":1.1,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144135476","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

Multiwavelength, Stokes-Anti-Stokes, Highly Transient SRS with Combined Frequency Shifts in a New Sr0.86Ba0.14MoO4 Raman Crystal 新型Sr0.86Ba0.14MoO4拉曼晶体的多波长stokes -反stokes高瞬态SRS组合频移

IF 1.1 4区物理与天体物理

Physics of Wave Phenomena Pub Date : 2025-05-26 DOI: 10.3103/S1541308X25700050

Yu. A. Kochukov, K. A. Gubina, D. P. Tereshchenko, A. G. Papashvili, V. E. Shukshin, I. S. Voronina, L. I. Ivleva, V. V. Bulgakova, P. A. Chizhov, A. A. Ushakov, S. N. Smetanin

{"title":"Multiwavelength, Stokes-Anti-Stokes, Highly Transient SRS with Combined Frequency Shifts in a New Sr0.86Ba0.14MoO4 Raman Crystal","authors":"Yu. A. Kochukov, K. A. Gubina, D. P. Tereshchenko, A. G. Papashvili, V. E. Shukshin, I. S. Voronina, L. I. Ivleva, V. V. Bulgakova, P. A. Chizhov, A. A. Ushakov, S. N. Smetanin","doi":"10.3103/S1541308X25700050","DOIUrl":"10.3103/S1541308X25700050","url":null,"abstract":"For the first time to our knowledge, a single-phase cationic Sr0.86Ba0.14MoO4 solid solution was used as an active medium for multiwavelength generation via stimulated Raman scattering (SRS) on dual (primary and secondary) Raman modes. When pumped by a subpicosecond laser with controllable chirping of radiation pulses (at a wavelength of 1030 nm), single-pass highly transient SRS generation of a larger number of Stokes radiation components (up to six) was obtained as compared to the original SrMoO4 crystal. This is explained by the increase in the spectral width and relative intensity of the secondary Raman mode in the solid solution. In addition, simultaneous efficient anti-Stokes SRS generation was obtained, especially with a low-frequency shift on the secondary Raman mode due to the small phase mismatch of the Stokes–anti-Stokes parametric Raman interaction. The total efficiency of the Stokes–anti-Stokes SRS conversion reached 33% with an optimal duration of chirped pumping pulses of 2 ps. This makes the obtained simple a source of multiwavelength radiation attractive for use in multiphoton microscopy and photodynamic therapy not only in the second (1000–1350 nm) but also in the first (650–950 nm) therapeutic window of biological tissue transparency.","PeriodicalId":732,"journal":{"name":"Physics of Wave Phenomena","volume":"33 2","pages":"110 - 116"},"PeriodicalIF":1.1,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144135477","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

The Electric Microfield and Its Spatial Derivatives Distribution Functions through Kelbg Potential: An Application on Lyman-α Spectral Line Shape of Hydrogenoid Lithium Plasma and Deducing of the Electrical Permittivity Kelbg势下的电微场及其空间导数分布函数：在类氢锂等离子体Lyman-α谱线形状及介电常数推导中的应用

IF 1.1 4区物理与天体物理

Physics of Wave Phenomena Pub Date : 2025-05-26 DOI: 10.3103/S1541308X25700086

S. Guerricha, S. Kobbi, S. Chihi, M. T. Meftah, K. Chenini, I. Kemerchou

{"title":"The Electric Microfield and Its Spatial Derivatives Distribution Functions through Kelbg Potential: An Application on Lyman-α Spectral Line Shape of Hydrogenoid Lithium Plasma and Deducing of the Electrical Permittivity","authors":"S. Guerricha, S. Kobbi, S. Chihi, M. T. Meftah, K. Chenini, I. Kemerchou","doi":"10.3103/S1541308X25700086","DOIUrl":"10.3103/S1541308X25700086","url":null,"abstract":"The electric microfield distribution functions were computed using two approchs: Monte Carlo simulation and analytical calculation. To achieve this, the Kelbg interaction, which accounts for quantum effects at short distances, was employed. Although the focus is on a weak coupling regime where quantum effects are negligible at average interparticle distances, the Kelbg potential was still utilized. In the simulation, all interactions between plasma components were fully accounted for, while the analytical calculation relied on the independent particles model (emitter–perturber). The results were compared with other findings that either include or exclude quantum effects. Various behaviors of the microfield distribution functions were identified. Additionally, the spatial derivatives of the microfield distribution functions were analytically derived, considering all interactions. These functions and their spatial derivatives were then incorporated into the calculation of the spectral line shape Ly-α of the pure plasma Li+2, which was subsequently used to determine the electrical permittivity of the plasma. The obtained results for the electrical permittivity of this plasma are quite similar to those found in the literature. These results are important for modern applications. It has been shown that quantum action at zero interparticles has an important role in the microfield distribution functions in strongly correlated plasmas, where the degree of quantification is relatively large.","PeriodicalId":732,"journal":{"name":"Physics of Wave Phenomena","volume":"33 2","pages":"131 - 145"},"PeriodicalIF":1.1,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144135432","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

Raman Scattering in TlGaxIn1–xTe2 Solid Solutions: Experiment and Calculations from First Principles TlGaxIn1-xTe2固溶体中的拉曼散射：第一性原理的实验与计算

IF 1.1 4区物理与天体物理

Physics of Wave Phenomena Pub Date : 2025-05-26 DOI: 10.3103/S1541308X25700062

A. I. Najafov, G. R. Mahmudova, Z. A. Jahangirli, V. B. Aliyeva, Z. I. Badalova, T. G. Mammadov, N. A. Abdullayev

引用次数: 0

Formation of Nanostructures on Diamond Surface by Laser Photoetching in Air 空气中激光蚀刻金刚石表面纳米结构的形成

IF 1.1 4区物理与天体物理

Physics of Wave Phenomena Pub Date : 2025-05-26 DOI: 10.3103/S1541308X25700013

T. V. Kononenko, V. V. Kononenko, P. A. Pivovarov, V. P. Pashinin, M. S. Komlenok, K. K. Ashikkalieva, V. I. Konov

引用次数: 0

Comparison of Single-Frequency Fiber Lasers Based on Different Types of Active Fibers for Interrogation of Infrasonic Fiber Optic Antennas 基于不同类型有源光纤的单频光纤激光器用于次声光纤天线探测的比较

IF 1.1 4区物理与天体物理

Physics of Wave Phenomena Pub Date : 2025-05-26 DOI: 10.3103/S1541308X25700037

O. Egorova, O. Medvedkov, M. Yashkov, S. Zhuravlev, V. Sorokovikov, R. Romashko, S. Semjonov

{"title":"Comparison of Single-Frequency Fiber Lasers Based on Different Types of Active Fibers for Interrogation of Infrasonic Fiber Optic Antennas","authors":"O. Egorova, O. Medvedkov, M. Yashkov, S. Zhuravlev, V. Sorokovikov, R. Romashko, S. Semjonov","doi":"10.3103/S1541308X25700037","DOIUrl":"10.3103/S1541308X25700037","url":null,"abstract":"The paper discusses the prospects of using single-frequency fiber lasers based on two different types of active fibers from the point of view of their applying for interrogating hydroacoustic antennas. Two single-frequency fiber lasers fabricated from two different types of erbium-doped fibers have been demonstrated. One of the lasers was made using conventional erbium doped fiber manufactured by vapour phase deposition technique. Another was based on a new type of fiber made by sintering phosphate glass in a silica glass tube (composite fiber). Both fibers were photosensitive to laser radiation at a wavelength of 248 nm (KrF excimer laser), and laser cavities were inscribed directly in the core of these types of active fibers. Stable single-frequency lasing was obtained for both laser configurations. The maximum value of relative intensity noise measured at the frequency of relaxation oscillations was approximately the same for both laser configuration: –82 and –86 dB/Hz, but the generation bandwidth in the conventional fiber laser was lower: 6.5 kHz instead of 14 kHz in composite fiber laser. Due to the high concentration of erbium ions the slope efficiency of the laser based on composite fiber was 0.98% compared to a conventional erbium doped fiber laser (0.19%).","PeriodicalId":732,"journal":{"name":"Physics of Wave Phenomena","volume":"33 2","pages":"93 - 101"},"PeriodicalIF":1.1,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144135475","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

Fiber-Optic Interferometric Horizontal Accelerometer for Seismic Signals Recording 用于地震信号记录的光纤干涉式水平加速度计

IF 1.1 4区物理与天体物理

Physics of Wave Phenomena Pub Date : 2025-05-26 DOI: 10.3103/S1541308X25700074

Yu. N. Kulchin, R. V. Romashko, O. T. Kamenev, Yu. S. Petrov, A. O. Kamenev

引用次数: 0

Stability of the Holographic Method of Mode Selection in Shallow-Water Area under Conditions of Bathymetry Irregularity 水深不均匀条件下浅水区全息选模方法的稳定性

IF 1.1 4区物理与天体物理

Physics of Wave Phenomena Pub Date : 2025-05-26 DOI: 10.3103/S1541308X25700104

V. M. Kuz’kin, S. A. Pereselkov, A. S. Pereselkov, A. Yu. Malykhin

引用次数: 0