LASER

作品数：2629被引量：3721H指数：19
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相关机构：北京航空航天大学中国科学院成都市第二人民医院北京理工大学更多>>
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275 nm ultraviolet laser with 351 mW continuous-wave output in a Pr:YLF laser pumped by a blue laser diode at 444.2 nm
《中国光学(中英文)》2025年第2期376-381,共6页ZHENG Quan XIAO Hui-dong CHEN Xi WANG Yan WANG Yu-ning LIU Hui-zhen TIAN Dong-he WANG Jin-yan YAO Yi 
吉林省科技发展计划项目(No.20230201062GX)。
This paper describes what is thought to be the first generation of a continuous wave deep ultraviolet laser at 275 nm by efficient frequency doubling of a blue-diode-pumped Pr:YLF laser at 550 nm.By employing a novel ...
关键词：CW ultraviolet laser 275 nm laser Pr:YLF frequency doubling 
Enhanced electrochemical corrosion resistance of 316L stainless steel manufactured by ultrasonic rolling assisted laser directed energy deposition
《China Foundry》2025年第2期182-194,共13页Guan Liu Yi-gui Su Xu-yu Pi Dong-xu Wen De-fu Liu Yong-cheng Lin 
financial supports from the National Natural Science Foundation of China (No.52305440);the Natural Science Foundation of Changsha City (Nos.kq2208272,kq2208274);the Tribology Science Fund of the State Key Laboratory of Tribology in Advanced Equipment (SKLTKF22B09);the National Key Research and Development Program of China (2022YFB3706902)。
Under the laser directed energy deposition(LDED)process,the rapid melting and solidification usually lead to the emergence of pores and coarse columnar dendrites,which in turn compromise the properties of the deposite...
关键词：laser directed energy deposition ultrasonic rolling 316L stainless steel microstructure electrochemical corrosion resistance 
Laser-assistedαdecay of the deformed odd-A nuclei
《Nuclear Science and Techniques》2025年第4期181-198,共18页Jun-Hao Cheng Qiong Xiao Jun-Gang Deng Yang-Yang Xu You-Tian Zou Tong-Pu Yu 
supported by the National Natural Science Foundation of China(Nos.12375244 and 12135009);the Hunan Provincial Innovation Foundation for Postgraduate(Nos.CX20210007 and CX20230008)。
In this study,we explore the impact of state-of-the-art laser fields on theαdecay half-life of deformed ground-state odd-A nuclei within the proton number range of 52–107.The calculations show that the presence of a...
关键词：αdecay Odd-A nuclei HALF-LIFE Extreme laser field Penetration probability 
Impact of atomization methods on aluminum alloy powder characteristics and 3D printing performance in laser directed energy deposition process
《Transactions of Nonferrous Metals Society of China》2025年第4期1057-1074,共18页Gang RUAN Yu-dong LIANG Gan LI Ying JIN Xing-gang LI 
supported by the National Natural Science Foundation of China(No.52074157);Department of Education of Guangdong Province,China(No.2023KTSCX121);Shenzhen Science and Technology Programs,China(Nos.JSGG20210802154210032,JCYJ20210324104608023,JSGG20180508152608855)。
A comparative study on the performance of gas atomized(GA)and rotating-disk atomized(RDA)aluminum alloy powders produced on industrial scale for laser directed energy deposition(L-DED)process was carried out.The powde...
关键词：metal additive manufacturing rotating disk atomization gas atomization AlSi10Mg powder powder feedstocks 
A High Peak Power Passively Q-Switched Nd:YAG Dual-Rod 532 nm Laser Based on LED Side Pumping
《Chinese Physics Letters》2025年第4期62-66,共5页Jian-Ping Shen Yang Chen Liang Chen Feng-Yang Xing Feng-Bo Zhang Rui-Ze Xia Huan-Yu Zuo Feng Xiong Rong-Rong Jiang 
supported by the Nanjing University of Posts and Telecommunications Foundation,China(Grant Nos.JUH219002 and JUH219007);the Key R&D Program of Shandong Province,China(Grant No.2021CXGC010202)。
In this paper,we present a high peak power passively Q-switched intracavity frequency-doubled green laser based on an efficient LED-pumped Nd:YAG dual-rod laser module.In quasi-continuous wave(QCW)running operation,th...
关键词：slope efficiency maximum optical conversion nd yag dual rod fundamental laser led side pumping passively q switched high peak power NM 
Kelvin lattice structures fabricated by laser powder bed fusion:Design,preparation,and mechanical performance
《China Foundry》2025年第2期117-127,共11页Yan-peng Wei Huai-qian Li Ying-chun Ma Zhi-quan Miao Bo Yu Feng Lin 
financially supported by the Liaoning Province Applied Fundamental Research Program (No.2023JH2/101700039);Liaoning Province Natural Science Foundation (No.2023-MSLH-328).
Metallic lattice structures represent advanced architected materials delivering exceptional properties with promising lightweight potential.With the rapid advancement of additive manufacturing,these structures have ga...
关键词：Kelvin structure metallic lattice structures laser powder bed fusion mechanical model isotropic mechanical properties 
Fabrication of Porous SiC Coatings on Quartz Substrates by Laser Chemical Vapor Deposition
《Journal of Wuhan University of Technology(Materials Science)》2025年第2期330-337,共8页YANG Meijun CHEN Rui XU Qingfang GUO Bingjian LIU Kai TU Rong ZHANG Song 
Funded by the International Science&Technology Cooperation Program of Hubei Province of China(No.2022EHB024);the National Key Research and Development Plan(Nos.2018YFE0103600 and 2021YFB3703100);the National Natural Science Foundation of China(Nos.51872212,51972244,52002075,and 52102066);the 111 Project(No.B13035)。
Laser etching and laser chemical vapor deposition(LCVD)techniques were proposed for the rapid preparation of high-purity,strongly bonded SiC porous micro-nano-coatings on quartz substrates.The laser serves as an exter...
关键词：laser etching laser CVD quartz substrate SiC coating 
Influence of process parameters on microstructure and properties of Cu−Cr−Nb−Y alloy manufactured by laser powder bed fusion
《Transactions of Nonferrous Metals Society of China》2025年第4期1212-1232,共21页Shu-peng YE Zu-ming LIU Ya-zhou ZHANG Tao LIU Dao-yan JIANG Lei CHEN Cai CHEN 
financially supported by the Project of Chinese Academy of Engineering(Nos.2019-XZ-11 and 2023-XY-18);the Open Fund of National Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials of China(No.HKDNM201907)。
A novel Cu−4.8Cr−2.2Nb−0.15Y(at.%)alloy was fabricated by employing the laser powder bed fusion with different processing parameters.The influence of laser power(P),scanning speed(v),and laser linear energy density(El...
关键词：Cu−Cr−Nb−Y alloy laser powder bed fusion melt pool morphology microstructure mechanical properties 
Fluid Dynamics Research on Erbium Laser-Assisted Chemical Preparation for Root Canal Therapy:A Review
《Journal of Clinical and Nursing Research》2025年第4期43-49,共7页Kedi Jihu Xinyu He Jizhi Zhao 
Microbial infection is a principal etiological factor in pulp and periapical diseases,necessitating effective root canal therapy(RCT)for thorough decontamination of the root canal system.However,conventional mechanica...
关键词：Root canal therapy Laser adjunctive therapy Erbium Laser Fluid dynamics Infection control 
An adjustment-free laser resonator based on micron-scale corner cube array
《Chinese Physics B》2025年第3期382-387,共6页Pengyuan Chang Xinrong Huang Caolei Fu Aiping Liu Duo Pan Zhiyang Wang Jingbiao Chen 
supported by the Natural Science Foundation of Jiangsu Province(Grant No.BK20240613);Jiangsu Province’s“Innovation and Entrepreneurship Doctor”Program(Grant No.JSSCBS20230088);Natural Science Foundation of Nanjing University of Posts and Telecommunications(Grant No.NY224123);Natural Science Research Start-up Foundation of Recruiting Talents of Nanjing University of Posts and Telecommunications(Grant No.NY222112);Beijing Nova Program(Grant No.20240484696);Wenzhou Major Science and Technology Innovation Key Project(Grant No.ZG2020046);INNOVATION Program for Quantum Science and Technology(Grant No.2021ZD0303200)。
The topic of improving the mechanical stability of external cavity diode lasers(ECDLs)has recently attracted widespread attention and interest.The use of corner-cube-array(CCA)-based resonators provides a potential so...
关键词：laser resonant cavity corner cube array external cavity diode laser threshold curve 
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