Journal of Russian Laser Research最新文献

The research of high-repetition-rate pulses generation mechanism based on NbSe2/MoS2 heterojunction 基于NbSe2/MoS2异质结的高重复率脉冲产生机制研究

IF 1 4区物理与天体物理

Journal of Russian Laser Research Pub Date : 2026-08-26 DOI: 10.1007/s10946-026-10324-2

Wen Yang, Changhe Sun, Weifeng Zhong, Zhiqiang Long, Yingjie Shen, Ruijun Lan, Yuxing Xu

引用次数: 0

Minimalist photonic chip architecture based on the micro-ring resonator for matrix-matrix multiplication 基于矩阵-矩阵乘法微环谐振器的极简光子芯片结构

IF 1 4区物理与天体物理

Journal of Russian Laser Research Pub Date : 2026-08-19 DOI: 10.1007/s10946-026-10322-4

Ye Zhang, Lei Yu, Xuyang Zhu, Kaiwen Wu, Yejin Zhang, Jiaoqing Pan

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Correction to: Journal of Russian Laser Research, Volume 46, Issue 1–3 更正：俄罗斯激光研究杂志，第46卷，第1-3期

IF 1 4区物理与天体物理

Journal of Russian Laser Research Pub Date : 2026-08-19 DOI: 10.1007/s10946-026-10320-6

引用次数: 0

Design of a high-sensitivity 2D photonic crystal refractive index sensing platform for biological fluid analysis 用于生物流体分析的高灵敏度二维光子晶体折射率传感平台设计

IF 1 4区物理与天体物理

Journal of Russian Laser Research Pub Date : 2026-07-23 DOI: 10.1007/s10946-026-10319-z

Hadjira Tayoub, Ahlam Harhouz, Abdesselam Hocini, Farida Kebaili

{"title":"Design of a high-sensitivity 2D photonic crystal refractive index sensing platform for biological fluid analysis","authors":"Hadjira Tayoub, Ahlam Harhouz, Abdesselam Hocini, Farida Kebaili","doi":"10.1007/s10946-026-10319-z","DOIUrl":"10.1007/s10946-026-10319-z","url":null,"abstract":"<div><p>This work presents the design and numerical analysis of a two-dimensional photonic crystal (2D-PhC) biosensor platform for refractive-index sensing of biological fluids such as urine and blood. The proposed platform integrates three vertically aligned ring-shaped microcavities within a silicon photonic crystal structure optimized to operate near the 1550 nm resonance. The device was evaluated using refractive-index values for biological samples associated with glucose concentration, high-density lipoprotein (HDL) cholesterol, sickle cell anemia, and HIV infection. The sensing mechanism is based on monitoring shifts in the resonant wavelength caused by variations in the refractive index when biological analytes infiltrate the microcavities. The structure is modeled and simulated using RSoft Photonic Suite CAD environment.</p><p>Simulation results demonstrated that the proposed biosensor achieves a sensitivity exceeding 1100 nm/RIU. With a Q-factor on the order of 10<sup>6</sup>, a figure of merit (FoM) of approximately 10<sup>6</sup> RIU<sup>−1</sup>, and a limit of detection close to 10<sup>−7</sup> RIU. These results indicate that the proposed photonic crystal platform can serve as a compact, label-free, and non-invasive sensor for high-sensitivity refractive index sensing in biological fluids.</p></div>","PeriodicalId":663,"journal":{"name":"Journal of Russian Laser Research","volume":"47 5","pages":"541 - 555"},"PeriodicalIF":1.0,"publicationDate":"2026-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148903507","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

Effects of platelet-rich plasma and low-level laser therapy on cutaneous wound healing in a diabetic rabbit model 富血小板血浆和低水平激光治疗对糖尿病家兔皮肤创面愈合的影响

IF 1 4区物理与天体物理

Journal of Russian Laser Research Pub Date : 2026-07-21 DOI: 10.1007/s10946-026-10312-6

Ali TizMaghz, Shahrokh Shojaei, Pedram Tehrani

{"title":"Effects of platelet-rich plasma and low-level laser therapy on cutaneous wound healing in a diabetic rabbit model","authors":"Ali TizMaghz, Shahrokh Shojaei, Pedram Tehrani","doi":"10.1007/s10946-026-10312-6","DOIUrl":"10.1007/s10946-026-10312-6","url":null,"abstract":"<div><p><i>Background:</i> Diabetes often slows wound healing and can cause chronic ulcers. This study examined how Platelet-Rich Plasma (PRP), Low-Level Laser Therapy (LLLT), and their combination affect healing in diabetic rabbit wounds.</p><p><i>Methods:</i> Fourteen days after diabetes was induced, researchers created standardized wounds on the backs of 44 diabetic rabbits. The rabbits were randomly assigned to four groups: control (saline), PRP, LLLT, and PRP + LLLT, with 11 rabbits per group and two wounds per rabbit. PRP was prepared just before use. LLLT was applied once daily for 14 days using a non-contact method. Wound closure was assessed with digital photos on days 7, 14, and 28, and the percentage of fully closed wounds was recorded. Biomechanical tests were performed on days 14 and 28. Statistical analysis accounted for the two wounds per rabbit using Generalized Estimating Equations and Linear Mixed Models (LMM) with Tukey adjustment.</p><p><i>Results:</i> The proportion of closed wounds differed significantly among groups at day 7 (p = 0.013), day 14 (p = 0.001), and day 28 (p = 0.001). At day 28, the highest closure rate was observed in the PRP + LLLT group (86.3%), followed by LLLT (68.2%), PRP (54.5%), and control (22.7%). After adjustment for within-animal correlation, all interventions significantly improved wound closure compared to control; however, differences between LLLT and PRP alone were not statistically significant. Combination therapy demonstrated greater biomechanical strength than PRP alone, but its superiority over LLLT alone was not statistically significant for most outcomes.</p><p><i>Conclusion:</i> Both PRP and LLLT improved diabetic wound healing in this rabbit model. The combination of PRP + LLLT yielded the most favorable late-stage outcomes, especially compared to PRP alone, but its superiority over LLLT alone remains inconclusive. Proper statistical correction for clustering is essential in wound-healing studies involving multiple wounds per animal.</p></div>","PeriodicalId":663,"journal":{"name":"Journal of Russian Laser Research","volume":"47 5","pages":"529 - 540"},"PeriodicalIF":1.0,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148903413","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

Real-time dynamics of cytosine in 800 nm laser fields 胞嘧啶在800 nm激光场中的实时动力学

IF 1 4区物理与天体物理

Journal of Russian Laser Research Pub Date : 2026-07-21 DOI: 10.1007/s10946-026-10316-2

Zhiping Wang, Xu Wang, Chaoyi Qian, Wenbin Qiu

{"title":"Real-time dynamics of cytosine in 800 nm laser fields","authors":"Zhiping Wang, Xu Wang, Chaoyi Qian, Wenbin Qiu","doi":"10.1007/s10946-026-10316-2","DOIUrl":"10.1007/s10946-026-10316-2","url":null,"abstract":"<div><p>Using time-dependent density functional theory coupled nonadiabatically with molecular dynamics (TDDFT-MD), we systematically investigate the real-time nonadiabatic electron-nuclear dynamics of cytosine irradiated by 800 nm (1.55 eV) laser pulses. The laser intensity ranges from 1<span>(times10^{13}~text{W/cm}^2)</span> to 8<span>(times10^{15}~text{W/cm}^2)</span>. The calculated ground-state electronic structure, highest occupied molecular orbital (HOMO) distribution, and optical absorption spectrum are in excellent agreement with experimental data, validating the theoretical model. Two distinct ionization regimes (multiphoton, <span>(gamma > 1)</span>; tunneling, <span>(gamma < 1)</span>) are identified, with distinct orbital contribution mechanisms and structural responses. In the multiphoton regime, ionization exhibits a near-resonance energy alignment tendency. HOMO‑3 contributes the most (20.8%) owing to its favorable <span>(sigma)</span>-type spatial symmetry without nodal planes perpendicular to the laser polarization, together with near-resonant energy matching with six-photon energy. In the tunneling regime, the intense laser field depresses the Coulomb barrier, activating deep orbitals and reducing the total contribution of the four outermost orbitals to 22.5%. Laser intensity modulates structural stability: low intensities induce small-amplitude vibrations without dissociation, while high intensities trigger NH/CH bond cleavage via intramolecular Coulomb repulsion, with the pyrimidine ring remaining intact. The ionization yield follows a power-law relationship with laser intensity in both regimes, with logarithmic slopes of 3 (multiphoton) and 0.8 (tunneling), reflecting intrinsic differences in ionization mechanisms. This work provides atomic-level insights into cytosine’s strong-field dynamics, laying a foundation for understanding laser-DNA interactions.</p></div>","PeriodicalId":663,"journal":{"name":"Journal of Russian Laser Research","volume":"47 5","pages":"513 - 528"},"PeriodicalIF":1.0,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148903412","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

Thermally tunable asymmetric absorption in a hybrid metasurface 混合超表面的热可调不对称吸收

IF 1 4区物理与天体物理

Journal of Russian Laser Research Pub Date : 2026-07-21 DOI: 10.1007/s10946-026-10314-4

Lin Cheng, Yi Chen, Yuhang Hu, Kaixiang Hou, Zhiyuan Xiong

{"title":"Thermally tunable asymmetric absorption in a hybrid metasurface","authors":"Lin Cheng, Yi Chen, Yuhang Hu, Kaixiang Hou, Zhiyuan Xiong","doi":"10.1007/s10946-026-10314-4","DOIUrl":"10.1007/s10946-026-10314-4","url":null,"abstract":"<div><p>High efficiency, single-band light absorption at the nanoscale plays a vital role in advanced applications such as photothermal conversion, optical sensing, and biomedicine. Here, we propose a vertically stacked hybrid structure composed of aluminum arsenide (AlAs), indium tin oxide (ITO), and gallium arsenide (GaAs). We systematically investigate its absorption characteristics at a wavelength of 1240 nm. When light is incident from the GaAs side, a pronounced localized field enhancement occurs within the structure, leading to a peak absorption efficiency of 92%. Furthermore, the structure exhibits a temperature modulation efficiency of 60.8%, indicating its potential for broadband thermal tuning of absorption. Additionally, the AlAs/ITO/GaAs sandwich configuration demonstrates distinct nonreciprocal optical behavior, meaning the absorption response differs significantly depending on the illumination direction. These results provide a new strategy for designing multifunctional optoelectronic devices that integrate high absorption, thermal tunability, and directional optical response.</p></div>","PeriodicalId":663,"journal":{"name":"Journal of Russian Laser Research","volume":"47 5","pages":"503 - 512"},"PeriodicalIF":1.0,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148903408","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

Uniform side-pumping of solar multi-disk laser 太阳能多盘激光器均匀侧抽运

IF 1 4区物理与天体物理

Journal of Russian Laser Research Pub Date : 2026-07-17 DOI: 10.1007/s10946-026-10317-1

Hao Zhan, Yan Liu, Lanling Lan, Jun Zhou, Yuanyuan Zhang

引用次数: 0

Self-regulated crater formation governed by electron density in picosecond Nd:YAG laser-induced molybdenum plasma 皮秒Nd:YAG激光诱导钼等离子体中电子密度控制的自调节陨石坑形成

IF 1 4区物理与天体物理

Journal of Russian Laser Research Pub Date : 2026-07-17 DOI: 10.1007/s10946-026-10318-0

Munisbek Akhmedov, Jurabek Sadullayev, Murodbek Vapayev, Anvar Matnazarov, Ikram Davletov, Javlon Rayimbaev

{"title":"Self-regulated crater formation governed by electron density in picosecond Nd:YAG laser-induced molybdenum plasma","authors":"Munisbek Akhmedov, Jurabek Sadullayev, Murodbek Vapayev, Anvar Matnazarov, Ikram Davletov, Javlon Rayimbaev","doi":"10.1007/s10946-026-10318-0","DOIUrl":"10.1007/s10946-026-10318-0","url":null,"abstract":"<div><p>The surface modification of molybdenum under picosecond laser irradiation was systematically investigated, with particular emphasis on establishing a quantitative link between plasma parameters and ablation crater morphology. A picosecond Nd:YAG laser operating at a wavelength of 1064 nm with a pulse duration of 28 ps was used to irradiate molybdenum samples at laser fluences of 34.06, 36.59, and 38.02 J/cm<sup>2</sup>. Ablation efficiency was evaluated by measuring crater diameters via surface profilometry, and the resulting surface morphology was examined by scanning electron microscopy (SEM). Laser-induced breakdown spectroscopy (LIBS) was employed to determine the fundamental plasma parameters. The electron temperature was found to vary within the range of 12,263–12,781 K, whereas the electron density decreased from <span>(0.55 times 10^{18})</span> cm<sup>−3</sup> to <span>(0.40 times 10^{18})</span> cm<sup>−3</sup> with increasing laser fluence. A strong negative correlation (<span>(r approx -0.99)</span>) between electron density and ablation crater diameter was identified, indicating that plasma shielding is the dominant factor limiting material removal at higher fluences. The key novelty of this work lies in the experimental demonstration of a self-regulating plasma regime during picosecond laser ablation of molybdenum, in which inverse bremsstrahlung absorption and plasma expansion provide a feedback mechanism that stabilizes both plasma parameters and crater dimensions. This quantitative correlation among electron density, plasma absorption, and crater formation has not been reported previously for molybdenum under picosecond irradiation. The results obtained advance fundamental understanding of laser-plasma-matter interactions and provide practical guidelines for high-precision laser micromachining of refractory, high-melting-point metals.</p></div>","PeriodicalId":663,"journal":{"name":"Journal of Russian Laser Research","volume":"47 5","pages":"481 - 495"},"PeriodicalIF":1.0,"publicationDate":"2026-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148903539","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

Multimode-interference-induced femtosecond pulse generation in a large-core erbium-doped fiber laser 大芯掺铒光纤激光器中多模干涉诱导飞秒脉冲的产生

IF 1 4区物理与天体物理

Journal of Russian Laser Research Pub Date : 2026-07-13 DOI: 10.1007/s10946-026-10313-5

Hasanain Naser A. Ali, Ahmad Haziq A. Rosol, Anas Abdul Latiff, Retna Apsari, Sulaiman W. Harun

{"title":"Multimode-interference-induced femtosecond pulse generation in a large-core erbium-doped fiber laser","authors":"Hasanain Naser A. Ali, Ahmad Haziq A. Rosol, Anas Abdul Latiff, Retna Apsari, Sulaiman W. Harun","doi":"10.1007/s10946-026-10313-5","DOIUrl":"10.1007/s10946-026-10313-5","url":null,"abstract":"<div><p>In this study, we propose and experimentally demonstrate a new mode-locked fiber laser configuration in which a large-core erbium-doped fiber (EDF) simultaneously functions as the gain medium and an artificial saturable absorber (SA). A 70 cm-long, highly doped large-core EDF was incorporated into a simple all-fiber ring resonator, eliminating the need for any additional conventional SA device. Stable soliton mode-locking was achieved through nonlinear multimode interference occurring within the large-core EDF. The excitation and interaction of multiple transverse modes under high optical intensity produced intensity-dependent transmission, effectively enabling self-starting pulse formation. The laser generated stable soliton pulses centered at 1564.1 nm with a pulse duration of 330 fs. Mode-locking was maintained over a pump power range from 291.6 to 319.2 mW, demonstrating good operational stability. Owing to the short cavity length—since the same EDF segment serves dual roles as both gain medium and artificial SA—the laser achieved a relatively high fundamental repetition rate of 24.1 MHz. The maximum pulse energy reached 143.5 pJ. This compact and simplified architecture highlights the potential of large-core EDF as a multifunctional nonlinear element for efficient ultrafast pulse generation without relying on discrete SA components.</p></div>","PeriodicalId":663,"journal":{"name":"Journal of Russian Laser Research","volume":"47 5","pages":"473 - 480"},"PeriodicalIF":1.0,"publicationDate":"2026-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10946-026-10313-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148903310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0