Physics of Wave Phenomena最新文献

Study of the Microheterogeneous Structure of γ-Picoline Aqueous Solutions near the Specific Point Using Dynamic Light Scattering and Laser Phase Microscopy 用动态光散射和激光相显微镜研究γ-吡啶水溶液在特定点附近的微非均相结构

IF 1.1 4区物理与天体物理

Physics of Wave Phenomena Pub Date : 2026-11-08 DOI: 10.3103/S1541308X26700135

N. F. Bunkin, L. M. Sabirov, G. N. Umarova, Y. T. Juraev, Kh. Sh. Omonov, Kh. Sh. Djumaniyazov, I. A. Rakhmatullaev

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Theoretical Analysis of the Time for Achieving the Explosive Boiling Threshold under Laser Ablation 激光烧蚀下达到爆炸沸腾阈值时间的理论分析

IF 1.1 4区物理与天体物理

Physics of Wave Phenomena Pub Date : 2026-11-08 DOI: 10.3103/S1541308X26700160

A. A. Samokhin, A. V. Pento, V. I. Priklonskii, M. K. Gorshenina, N. S. Shubin

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Mechanisms of Generation of Reactive Oxygen Species under Mechanical Impact on Aqueous Solutions 水溶液机械作用下活性氧生成机理研究

IF 1.1 4区物理与天体物理

Physics of Wave Phenomena Pub Date : 2026-11-08 DOI: 10.3103/S1541308X26700147

I. V. Baimler, V. A. Kozlov, T. A. Matveeva, R. M. Sarimov, A. V. Simakin, I. A. Shcherbakov

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Effect of Impact on the Morphology and Concentration of Agglomerates of Gold, Titanium Dioxide, and Selenium Nanoparticles 影响金、二氧化钛和硒纳米粒子团聚体形貌和浓度的因素

IF 1.1 4区物理与天体物理

Physics of Wave Phenomena Pub Date : 2026-11-08 DOI: 10.3103/S1541308X26600194

M. V. Oronov, I. V. Baimler, A. V. Simakin, N. F. Bunkin, I. A. Shcherbakov

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Estimation of Impact Efficiency of Combined Laser Pulses on Additive Metal Materials 复合激光脉冲对增材金属材料冲击效率的估计

IF 1.1 4区物理与天体物理

Physics of Wave Phenomena Pub Date : 2026-11-08 DOI: 10.3103/S1541308X26600467

A. E. Shepelev, S. A. Solokhin, I. V. Shilov, M. N. Ershkov, A. A. Zhokin, A. G. Grigor’yants, A. V. Bogdanov

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Femtosecond Pump-Probe Measurements of Photosystem I from Arthrospira platensis Reveal Dynamics of the Low Energy Exciton States 平节螺旋体光系统I的飞秒泵探测量揭示了低能激子态的动力学

IF 1.1 4区物理与天体物理

Physics of Wave Phenomena Pub Date : 2026-11-08 DOI: 10.3103/S1541308X26700159

A. P. Razjivin, R. Y. Pishchalnikov, V. O. Kompanets, S. V. Chekalin, V. S. Kozlovsky, N. N. Reutskii, M. N. Moskovsky, A. S. Dorokhov, A. Yu. Izmaylov

{"title":"Femtosecond Pump-Probe Measurements of Photosystem I from Arthrospira platensis Reveal Dynamics of the Low Energy Exciton States","authors":"A. P. Razjivin, R. Y. Pishchalnikov, V. O. Kompanets, S. V. Chekalin, V. S. Kozlovsky, N. N. Reutskii, M. N. Moskovsky, A. S. Dorokhov, A. Yu. Izmaylov","doi":"10.3103/S1541308X26700159","DOIUrl":"10.3103/S1541308X26700159","url":null,"abstract":"The optical properties of Photosystem I (PSI), the photosynthetic pigment-protein complex, are distinguished by an interesting feature—the presence of bands in the absorption spectrum that are shifted to the low-energy region compared to the absorption of the bulk chlorophylls (Chls) and the reaction center P700. These bands assigned to the long wavelength electronic transitions of “red” chlorophylls (RChls). To demonstrate the role of RChls as a mediator of energy transport from bulk Chls to the reaction center of PSI, the pump-probe femtosecond measurements were performed at room temperature. PSI complexes isolated from Arthrospira platensis with oxidized and reduced P700 reaction centers were used. Being excited at 630 nm, the excitation energy equilibrates around 685 nm of the bulk Chl band after 0.2–0.6 ps. Then the excitation from 685 nm spectral form is transferred to RChl at 710 nm (C710) and at 730 nm (C730) during 2–4 ps; the backward transfer is practically absent. Deactivation of the C710 and C730 excitations occurs due to the transfer to reduced P700 and subsequent charge separation with the formation of the P700+ radical cation or due to the transition to oxidized P700+ (quenching). Both processes occur with a time constant of 40–50 ps–1.","PeriodicalId":732,"journal":{"name":"Physics of Wave Phenomena","volume":"34 5","pages":"351 - 362"},"PeriodicalIF":1.1,"publicationDate":"2026-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149367339","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

Design Guidelines for Low-Distortion Analog Fiber-Optic Systems: Impact of Laser Operating Conditions and Fiber Characteristics 低失真模拟光纤系统设计指南：激光操作条件和光纤特性的影响

IF 1.1 4区物理与天体物理

Physics of Wave Phenomena Pub Date : 2026-11-08 DOI: 10.3103/S1541308X26600406

Moustafa Ahmed, Ghodran Abdullah, Yas Al-Hadeethi, Alaa Mahmoud

{"title":"Design Guidelines for Low-Distortion Analog Fiber-Optic Systems: Impact of Laser Operating Conditions and Fiber Characteristics","authors":"Moustafa Ahmed, Ghodran Abdullah, Yas Al-Hadeethi, Alaa Mahmoud","doi":"10.3103/S1541308X26600406","DOIUrl":"10.3103/S1541308X26600406","url":null,"abstract":"This paper addresses the critical issue of distortion in analog fiber communication systems employing directly modulated semiconductor lasers. While previous studies focused separately on either laser dynamics or fiber effects, this work provides a comprehensive investigation of their combined impact on system performance. Using theoretical modeling supported by advanced simulations at the standard 1.55 μm wavelength, we examined laser operation across a wide modulation range, from weak modulation that minimally perturbs the dynamics to deep modulation that induces strong nonlinear behavior. The results reveal four distinct operating regimes: sinusoidal signals, periodic signals, periodic pulses, and period-doubled signals at high modulation depths. The bias current plays a crucial role; near-threshold operation significantly enhances distortion due to stronger nonlinearities, whereas operation well above threshold reduces distortion levels. Propagation through the fiber introduces additional changes to the distortion characteristics. While attenuation uniformly decreases signal power, chromatic dispersion introduces a significant dependence on link length. Notably, second-order harmonic distortion is minimized at approximately 5 km fiber length, whereas third-order distortion is reduced for shorter links (1–3 km). These findings translate into a set of design rules for analog optical links: stable, low-distortion operation requires a DC bias of at least twice the threshold current, a modulation depth exceeding 0.3, and a fiber length close to the dispersion-induced optimum (≈5 km for 2HD, ≈3 km for 3HD). Under the cubic-nonlinearity expansion, the reported single-tone 3HD maps onto the third-order intermodulation distortion (IMD3 ≈ 3HD + 9.54 dB) that governs the spurious-free dynamic range of multichannel analog links (SFDR), so that the present results carry over to broadband cable-TV (CATV), radio-over-fiber (RoF) networks, and 5G analog-fronthaul applications.","PeriodicalId":732,"journal":{"name":"Physics of Wave Phenomena","volume":"34 5","pages":"402 - 418"},"PeriodicalIF":1.1,"publicationDate":"2026-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149367337","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

Inelastic Scattering Features of Laser Radiation in a Colloidal Gold Solution 激光辐射在胶体金溶液中的非弹性散射特性

IF 1.1 4区物理与天体物理

Physics of Wave Phenomena Pub Date : 2026-11-08 DOI: 10.3103/S1541308X26700172

A. F. Bunkin, M. A. Davydov, A. N. Fedorov

引用次数: 0

Optical Ultramicroscopy of Nanoparticles in Aqueous Solutions Using Elastic Light Scattering: Real-World Capabilities and Comparison with TEM and DLS 使用弹性光散射的光学超微显微镜在水溶液中观察纳米粒子：真实世界的能力和与TEM和DLS的比较

IF 1.1 4区物理与天体物理

Physics of Wave Phenomena Pub Date : 2026-09-09 DOI: 10.3103/S1541308X26600091

G. O. Silaev, O. V. Morozova, V. N. Krasheninnikov, F. V. Vereshchagin, V. Z. Lankin, Yu. G. Vainer

{"title":"Optical Ultramicroscopy of Nanoparticles in Aqueous Solutions Using Elastic Light Scattering: Real-World Capabilities and Comparison with TEM and DLS","authors":"G. O. Silaev, O. V. Morozova, V. N. Krasheninnikov, F. V. Vereshchagin, V. Z. Lankin, Yu. G. Vainer","doi":"10.3103/S1541308X26600091","DOIUrl":"10.3103/S1541308X26600091","url":null,"abstract":"An improved optical ultramicroscope is described to be used for visualizing single nanoparticles (NPs) sized over 5–10 nm in aqueous solutions and determining their hydrodynamic radii. The ultramicroscope is based on detection of Brownian motion trajectories of NPs using the elastic light scattering signals of two—laser and nonlaser—sources and their subsequent analysis for determining individual hydrodynamic radii of the detected NPs. The actual capabilities of the developed microscope in studying NPs of a different nature, including biological ones, are demonstrated. The analysis results for silver and silicon dioxide (SiO2) NPs obtained using the developed microscope are compared to those obtained using a transmission electron microscope and a dynamic light scattering microscope (DLS). The developed microscope is shown to hold promise in medical diagnosis applications. Advantages of using a nonlaser source of bright incoherent radiation for analysis of submicron particles larger than 100 nm are demonstrated.","PeriodicalId":732,"journal":{"name":"Physics of Wave Phenomena","volume":"34 4","pages":"266 - 277"},"PeriodicalIF":1.1,"publicationDate":"2026-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148909766","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}

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Study of the Optical, Infrared, and Luminescent Properties of the UPS-923A Plastic Scintillator after γ-Irradiation γ辐照后UPS-923A塑料闪烁体的光学、红外和发光特性研究

IF 1.1 4区物理与天体物理

Physics of Wave Phenomena Pub Date : 2026-09-09 DOI: 10.3103/S1541308X25600679

M. Kh. Ashurov, I. Nuritdinov, Z. U. Esanov, M. A. Mussaeva, Sh. Irisov

{"title":"Study of the Optical, Infrared, and Luminescent Properties of the UPS-923A Plastic Scintillator after γ-Irradiation","authors":"M. Kh. Ashurov, I. Nuritdinov, Z. U. Esanov, M. A. Mussaeva, Sh. Irisov","doi":"10.3103/S1541308X25600679","DOIUrl":"10.3103/S1541308X25600679","url":null,"abstract":"The effect of γ-irradiation from a 60Co source in the dose range 5 × 105–107 rad on the optical and luminescent properties of the UPS-923A plastic scintillator based on a polystyrene matrix doped with para-terphenyl (pTP) and a 1,4-bis(5-phenyl-2-oxazolyl)benzene (POPOP) spectral shift additive was investigated. UV–Vis absorption spectroscopy, excitation and photoluminescence spectra, as well as IR spectroscopy methods showed that radiation degradation is selective and primarily affects POPOP molecules containing oxazole rings, while pTP demonstrates higher radiation resistance in the initial stages of irradiation. It has been established that at low doses of irradiation, a relative stabilization of pTP luminescence is observed, while the intensity of POPOP radiation decreases already at doses of about 106 rad. Analysis of the difference spectra and the evolution of the IR bands indicates the destruction of C–N and C–O bonds in the POPOP structure, which leads to a disruption of the energy transfer mechanism between the additives and a decrease in the light output of the scintillator. The results obtained allow us to propose a physicochemical mechanism for the radiation degradation of UPS-923A plastic scintillator and can be used in the development of radiation-resistant organic scintillators for high-energy radiation detectors.","PeriodicalId":732,"journal":{"name":"Physics of Wave Phenomena","volume":"34 4","pages":"305 - 311"},"PeriodicalIF":1.1,"publicationDate":"2026-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148909730","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