Journal of Russian Laser Research最新文献_第2页

LD end-pumped thermal compensation Q-switched step concentration Tm : YAG laser

IF 0.7 4区物理与天体物理

Journal of Russian Laser Research Pub Date : 2025-02-12 DOI: 10.1007/s10946-024-10238-x

Jiawen Guo, Zhi Li, Qiujing Lin, Shiwei Xue, Chunting Wu, Yongji Yu

引用次数: 0

Low-temperature photoluminescence of CdTe:Fe single crystals for tunable lasers operating in mid-infrared spectral range

IF 0.7 4区物理与天体物理

Journal of Russian Laser Research Pub Date : 2025-02-12 DOI: 10.1007/s10946-024-10227-0

D. A. Zazymkina, D. F. Aminev, V. S. Krivobok, Yu. V. Korostelin, V. I. Kozlovsky

{"title":"Low-temperature photoluminescence of CdTe:Fe single crystals for tunable lasers operating in mid-infrared spectral range","authors":"D. A. Zazymkina, D. F. Aminev, V. S. Krivobok, Yu. V. Korostelin, V. I. Kozlovsky","doi":"10.1007/s10946-024-10227-0","DOIUrl":"10.1007/s10946-024-10227-0","url":null,"abstract":"<div>We study low-temperature photoluminescence of CdTe:Fe single crystals in the near-IR range at Helium temperatures. We establish that doping with 4 · 1018 cm−3 iron concentration leads to a decrease of the band gap by 8 ± 1 meV compared to non-doped CdTe. We show that, in the spectral range of 1.2–1.6 eV, the luminescence of crystals is mainly defined by Hydrogen-like donors and two types of acceptors with binding energies of 149 ± 5 meV and 45 ± 2 meV. In addition, we detect the luminescence bands with maxima of 1.1 eV and 0.95 eV in the longer wavelength region. The characteristic decay time for each of the bands is 0.386 ms at 7 K. The observed bands are ascribed to intracenter luminescence corresponding to the 3T1(3H) → 5E(5D) and 5T2(5D) → 5E(5D) transitions between Fe2+-ion inner shells. Detection and identification of these bands allows the use of the near-IR range for the study of optically active iron ions in promising laser media based on CdTe:Fe.</div>","PeriodicalId":663,"journal":{"name":"Journal of Russian Laser Research","volume":"45 4","pages":"404 - 410"},"PeriodicalIF":0.7,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553700","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

3 µm Q-switched Er3+:ZBLAN laser with V4AlC3 saturable absorber

IF 0.7 4区物理与天体物理

Journal of Russian Laser Research Pub Date : 2025-02-12 DOI: 10.1007/s10946-024-10223-4

Ahmed Shakir Al-Hiti, F. Sh. Khalifa

引用次数: 0

Propagation behavior of partially coherent elliptical vortex beam in turbulent atmosphere along an uplink path and a downlink path

IF 0.7 4区物理与天体物理

Journal of Russian Laser Research Pub Date : 2025-02-12 DOI: 10.1007/s10946-024-10233-2

Yonggen Xu, Wenli Liu, Bocheng Li, Xueru Deng, Zairu Ma, Xiarong Hu

{"title":"Propagation behavior of partially coherent elliptical vortex beam in turbulent atmosphere along an uplink path and a downlink path","authors":"Yonggen Xu, Wenli Liu, Bocheng Li, Xueru Deng, Zairu Ma, Xiarong Hu","doi":"10.1007/s10946-024-10233-2","DOIUrl":"10.1007/s10946-024-10233-2","url":null,"abstract":"<div>We derive analytical formulas for average intensity of a partially coherent elliptical vortex (PCEV) beam propagating in a turbulent atmosphere along an uplink path and a downlink path with the help of the extended Huygens–Fresnel principle. Our outcomes reveal that the normalized initial profile with the elliptical annular dark pattern splits and rotates counterclockwise around the major axis of elliptical hollow pattern with increasing the propagation distance in free space and atmospheric turbulence. We also find that the splitting light spots heal into a Gaussian-like spot due to the turbulence effect, smaller ellipticity, larger topological charge, slower healing process. It can be also found that PCEV beam propagates along a downlink path is less affected by atmospheric turbulence in comparison with uplink path. In order to confirm our numerical results, we combine the complex screen method and multi-phase screen method to simulate the propagation of the PCEV beam in atmospheric turbulence. It is indicated that the simulation results are in good agreement with theoretical results. Our findings may be of great significance for the development of the free-space optical communications.</div>","PeriodicalId":663,"journal":{"name":"Journal of Russian Laser Research","volume":"45 4","pages":"454 - 467"},"PeriodicalIF":0.7,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143554167","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

Multi-bit subnanocesond optical switching of GST225 for photonic memory and computing

IF 0.7 4区物理与天体物理

Journal of Russian Laser Research Pub Date : 2025-02-12 DOI: 10.1007/s10946-024-10224-3

Alexey V. Kiselev, Anton A. Burtsev, Vladimir A. Mikhalevsky, Alexey A. Nevzorov, Nikolay N. Eliseev, Vitaly V. Ionin, Andrey A. Lotin

引用次数: 0

La3Ga5SiO14 electro-optically cavity-dumped TM : YAP laser

IF 0.7 4区物理与天体物理

Journal of Russian Laser Research Pub Date : 2025-02-12 DOI: 10.1007/s10946-024-10236-z

Junhui Li, Baoquan Yao, Wenhao Cheng, Minglang Wu, Tongyv Dai, Xiaoming Duan

引用次数: 0

Propagation Properties of Partially Coherent Vortex Beams with Twist Phase in Oceanic Turbulence 海洋湍流中具有扭曲相位的部分相干涡束的传播特性

IF 0.7 4区物理与天体物理

Journal of Russian Laser Research Pub Date : 2024-08-12 DOI: 10.1007/s10946-024-10219-0

NianChi Hao, Yonggen Xu, Qian Xu, Wenli Liu, Bangzhuo An, Xueru Deng, Zairu Ma

{"title":"Propagation Properties of Partially Coherent Vortex Beams with Twist Phase in Oceanic Turbulence","authors":"NianChi Hao, Yonggen Xu, Qian Xu, Wenli Liu, Bangzhuo An, Xueru Deng, Zairu Ma","doi":"10.1007/s10946-024-10219-0","DOIUrl":"10.1007/s10946-024-10219-0","url":null,"abstract":"<div>We derive the analytical expressions of the average intensity of a partially coherent twisted Laguerre– Gaussian vortex (PCTLGV) beam passing through oceanic turbulence with the help of the extended Huygens–Fresnel principle. The findings show that the normalized initial profile with a dark hollow distribution of PCTLGV beam gradually converts into a flat-topped one, and finally degenerates into a Gaussian-like distribution as the propagation distance increases. The outcomes also reveal that the effect of oceanic turbulence on the propagation properties of PCTLGV beam can be effectively mitigated by regulating the twist factor and topological charge. We also find that PCTLGV beam exhibits stronger anti-turbulence ability, when the topological charge and twist factor have opposite signs as well as larger absolute values of twist factor. In addition, the PCTLGV beam will degenerate fast in stronger turbulence over the poor turbulence, which can be counteracted by increasing the initial coherence lengths. Our researches can contribute to underwater communication transmission, oceanic laser radar detection, and optical imaging.</div>","PeriodicalId":663,"journal":{"name":"Journal of Russian Laser Research","volume":"45 3","pages":"332 - 342"},"PeriodicalIF":0.7,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141933127","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 Monitoring of Laser-Layered Paint Removal from CFRP Based on the Synergy of Laser-Induced Breakdown Spectroscopy and PLS-DA Models 基于激光诱导击穿光谱和 PLS-DA 模型协同作用的 CFRP 激光分层脱漆实时监测系统

IF 0.7 4区物理与天体物理

Journal of Russian Laser Research Pub Date : 2024-08-12 DOI: 10.1007/s10946-024-10221-6

Ying Zhao, Xiaoyong Zhuo, Yanqun Tong, Jianyu Huang, Shuai Wang, Wangfan Zhou, Liang Chen, Yu Chen, Wen Shi

{"title":"Real-Time Monitoring of Laser-Layered Paint Removal from CFRP Based on the Synergy of Laser-Induced Breakdown Spectroscopy and PLS-DA Models","authors":"Ying Zhao, Xiaoyong Zhuo, Yanqun Tong, Jianyu Huang, Shuai Wang, Wangfan Zhou, Liang Chen, Yu Chen, Wen Shi","doi":"10.1007/s10946-024-10221-6","DOIUrl":"10.1007/s10946-024-10221-6","url":null,"abstract":"<div>To achieve precise removal of different coatings from carbon fiber-reinforced polymer (CFRP), we propose real-time monitoring for laser-layered paint removal. Current methods for laser paint removal on CFRP surfaces primarily focus on temperature control to safeguard the CFRP against potential damage, yet encounter challenges in providing real-time monitoring capabilities. In this study, we present laser-induced breakdown spectroscopy (LIBS) combined with partial least-squares discriminant analysis (PLS-DA) models as a promising approach. Initially, in this study, we analyze the elemental composition of carbon fiber substrates, primer, and topcoat to identify key characteristic elements for evaluating the laser-layered paint removal effectiveness. Subsequently, we explore changes in the intensities of characteristic spectral lines associated with the characteristic elements in different layers. Lastly, we develop PLS-DA models to effectively identify and classify the carbon fiber substrates, primer, and topcoat, enabling real-time monitoring of laser-layered paint removal. Based on the measured LIBS characteristic intensities and PLS-DA models, we accurately identified materials using Al I (396.164 nm) and Cr I (428.984 nm), or exclusively Cr I (428.984 nm), with 100% accuracy. The results demonstrate the feasibility of integrating LIBS with PLS-DA for monitoring laser-layered paint removal and show its potential in high-quality surface cleaning and automation.</div>","PeriodicalId":663,"journal":{"name":"Journal of Russian Laser Research","volume":"45 3","pages":"354 - 364"},"PeriodicalIF":0.7,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141933126","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

Wavelength Switchable Thulium-Doped Fiber Laser Based on Fiber-Core Mismatched Mach–Zehnder Filter 基于纤芯失配马赫-泽恩德滤波器的波长可切换掺铥光纤激光器

IF 0.7 4区物理与天体物理

Journal of Russian Laser Research Pub Date : 2024-08-12 DOI: 10.1007/s10946-024-10215-4

Wei Wei, Junfa Duan, Yunbo Yang, Gaolin Qin

引用次数: 0

Nanocrystalline Diamond Films Grown in CH4-H2-GeH4-N2 Gas Mixtures: Structure and Luminescent Characteristics 在 CH4-H2-GeH4-N2 混合气体中生长的纳米晶钻石薄膜：结构和发光特性

IF 0.7 4区物理与天体物理

Journal of Russian Laser Research Pub Date : 2024-08-12 DOI: 10.1007/s10946-024-10222-5

Artem Martyanov, Ivan Tiazhelov, Sergey Savin, Vadim Sedov

{"title":"Nanocrystalline Diamond Films Grown in CH4-H2-GeH4-N2 Gas Mixtures: Structure and Luminescent Characteristics","authors":"Artem Martyanov, Ivan Tiazhelov, Sergey Savin, Vadim Sedov","doi":"10.1007/s10946-024-10222-5","DOIUrl":"10.1007/s10946-024-10222-5","url":null,"abstract":"<div>The chemical vapor deposition (CVD) of diamond allows the controllable formation of the material with desirable structure and elemental composition. In this study, Ge-doped microcrystalline and nanocrystalline diamond (NCD) films are synthesized using microwave plasma-assisted CVD in CH4-H2-GeH4-N2 gas mixtures. We grow series of 2 μm thick NCD films with variations in gas composition [N2] = 0 − 4% and [CH4] = 10 − 15%. We investigate and compare the structure, phase composition, and luminescent characteristics of the grown films. The luminescent signals from Silicon vacancy (SiV, 738 nm) and Germanium vacancy (GeV, 602 nm) color centers in diamond are registered. The additional annealing of the as-grown films in air is used to remove the excessive sp2 phase that hinders their luminescent properties. For both SiV and GeV centers, we find conditions for CVD growth of NCD films that are as bright or even brighter than Si-doped and Ge-doped high-quality microcrystalline diamond films (MCD) grown without N2 additions. These results may be used for the fabrication of NCD films and plates with high concentrations of SiV and GeV centers, which may serve as source material for the fabrication of sub-micrometer-sized luminescent diamond particles for local optical thermometry.</div>","PeriodicalId":663,"journal":{"name":"Journal of Russian Laser Research","volume":"45 3","pages":"365 - 372"},"PeriodicalIF":0.7,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141933128","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