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{"title":"Demonstration of a diode-pumped dual-wavelength metastable krypton laser","authors":"Qingshan Liu, Rui Wang, Zining Yang, Jianyong Sun, Weiqiang Yang, Hongyan Wang, Xiaojun Xu","doi":"10.1017/hpl.2023.73","DOIUrl":"https://doi.org/10.1017/hpl.2023.73","url":null,"abstract":"An abstract is not available for this content so a preview has been provided. As you have access to this content, a full PDF is available via the ‘Save PDF’ action button.","PeriodicalId":54285,"journal":{"name":"High Power Laser Science and Engineering","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135537898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
An abstract is not available for this content so a preview has been provided. As you have access to this content, a full PDF is available via the ‘Save PDF’ action button.
{"title":"Mitigation of stimulated Raman scattering in high-power fiber MOPA laser based on dual-structure fiber grating","authors":"Kerong Jiao, Qingqing Kong, Yangning Guo, Jingwei Li, Chen Wu, Zhigang Han, Rihong Zhu, Hua Shen","doi":"10.1017/hpl.2023.77","DOIUrl":"https://doi.org/10.1017/hpl.2023.77","url":null,"abstract":"An abstract is not available for this content so a preview has been provided. As you have access to this content, a full PDF is available via the ‘Save PDF’ action button.","PeriodicalId":54285,"journal":{"name":"High Power Laser Science and Engineering","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135537887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
Tomáš Paliesek, Petr Navrátil, Jan Pilař, Martin Divoký, Martin Smrž, Tomáš Mocek
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{"title":"Beam shaping in high-energy kW-class laser system Bivoj at HiLASE facility","authors":"Tomáš Paliesek, Petr Navrátil, Jan Pilař, Martin Divoký, Martin Smrž, Tomáš Mocek","doi":"10.1017/hpl.2023.79","DOIUrl":"https://doi.org/10.1017/hpl.2023.79","url":null,"abstract":"An abstract is not available for this content so a preview has been provided. As you have access to this content, a full PDF is available via the ‘Save PDF’ action button.","PeriodicalId":54285,"journal":{"name":"High Power Laser Science and Engineering","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134958152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
Jie Cai, Yinren Shou, Yixing Geng, Liqi Han, Xinlu Xu, Shuangchung Wen, Baifei Shen, Jinqing Yu, Xueqing Yan
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{"title":"Extremely powerful and frequency-tunable terahertz pulses from a table-top laser-plasma wiggler","authors":"Jie Cai, Yinren Shou, Yixing Geng, Liqi Han, Xinlu Xu, Shuangchung Wen, Baifei Shen, Jinqing Yu, Xueqing Yan","doi":"10.1017/hpl.2023.78","DOIUrl":"https://doi.org/10.1017/hpl.2023.78","url":null,"abstract":"An abstract is not available for this content so a preview has been provided. As you have access to this content, a full PDF is available via the ‘Save PDF’ action button.","PeriodicalId":54285,"journal":{"name":"High Power Laser Science and Engineering","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134960945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
Kun Shuai, Yuanan Zhao, Xiaofeng Liu, Xiangkun Lin, Zhilin Xia, Keqiang Qiu, Dawei Li, He Gong, Yan Zhou, Jian Sun, Li Zhou, Youen Jiang, Yaping Dai, Jianda Shao
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{"title":"Nanosecond-laser conditioning of multilayer dielectric gratings for picosecond-petawatt laser systems","authors":"Kun Shuai, Yuanan Zhao, Xiaofeng Liu, Xiangkun Lin, Zhilin Xia, Keqiang Qiu, Dawei Li, He Gong, Yan Zhou, Jian Sun, Li Zhou, Youen Jiang, Yaping Dai, Jianda Shao","doi":"10.1017/hpl.2023.74","DOIUrl":"https://doi.org/10.1017/hpl.2023.74","url":null,"abstract":"An abstract is not available for this content so a preview has been provided. As you have access to this content, a full PDF is available via the ‘Save PDF’ action button.","PeriodicalId":54285,"journal":{"name":"High Power Laser Science and Engineering","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135816842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
E. Khazanov, A. Shaykin, I. Kostyukov, V. Ginzburg, I. Mukhin, I. Yakovlev, A. Soloviev, Ivan Kuznetsov, S. Mironov, A. Korzhimanov, D. Bulanov, I. Shaikin, A. Kochetkov, Alexey Kuzmin, M. Martyanov, V. Lozhkarev, M. Starodubtsev, Alexander Litvak, Alexander Sergeev
Abstract The eXawatt Center for Extreme Light Studies project aimed to create a large scientific infrastructure based on lasers with giant peak power. The project relies on the significant progress achieved in the last decade. The planned infrastructure will incorporate a unique light source with a pulse power of 600 PW using optical parametric chirped pulse amplification in large-aperture KD2PO4, deuterated potassium dihydrogen phosphate crystals. The interaction of such laser radiation with matter represents a completely new fundamental physics. The direct study of the space–time structure of vacuums and other unknown phenomena at the frontier of high-energy physics and the physics of superstrong fields will be challenged. Expected applications will include the development of compact particle accelerators, the generation of ultrashort pulses of hard X-ray and gamma radiation for material science enabling one to probe material samples with unprecedented spatial and temporal resolution, the development of new radiation and particle sources, etc. The paper is translation from Russian [Kvantovaya Elektronika 53, 95 (2023)].
{"title":"Exawatt Center for Extreme Light Studies (XCELS)","authors":"E. Khazanov, A. Shaykin, I. Kostyukov, V. Ginzburg, I. Mukhin, I. Yakovlev, A. Soloviev, Ivan Kuznetsov, S. Mironov, A. Korzhimanov, D. Bulanov, I. Shaikin, A. Kochetkov, Alexey Kuzmin, M. Martyanov, V. Lozhkarev, M. Starodubtsev, Alexander Litvak, Alexander Sergeev","doi":"10.1017/hpl.2023.69","DOIUrl":"https://doi.org/10.1017/hpl.2023.69","url":null,"abstract":"Abstract The eXawatt Center for Extreme Light Studies project aimed to create a large scientific infrastructure based on lasers with giant peak power. The project relies on the significant progress achieved in the last decade. The planned infrastructure will incorporate a unique light source with a pulse power of 600 PW using optical parametric chirped pulse amplification in large-aperture KD2PO4, deuterated potassium dihydrogen phosphate crystals. The interaction of such laser radiation with matter represents a completely new fundamental physics. The direct study of the space–time structure of vacuums and other unknown phenomena at the frontier of high-energy physics and the physics of superstrong fields will be challenged. Expected applications will include the development of compact particle accelerators, the generation of ultrashort pulses of hard X-ray and gamma radiation for material science enabling one to probe material samples with unprecedented spatial and temporal resolution, the development of new radiation and particle sources, etc. The paper is translation from Russian [Kvantovaya Elektronika 53, 95 (2023)].","PeriodicalId":54285,"journal":{"name":"High Power Laser Science and Engineering","volume":"69 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81114322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
Li Jiang, Jinming Wu, R. Song, Zilun Chen, Xiran Zhu, Fengchang Li, Kailong Li, Hanwei Zhang, J. Hou
The random distributed-feedback fiber laser (RFL) is a new approach to obtain a high-power stable supercontinuum (SC) source. To consider both structure simplification and high-power SC output, an innovative structure achieving a kilowatt-level SC output in a single-stage RFL with a half-open cavity is demonstrated in this paper. It consists of a fiber oscillator, a piece of long passive fiber, and a broadband coupler, among which the broadband coupler acting as a feedback device is crucial in SC generation. When the system has no feedback, the backward output power is up to 298 W under the pump power of 1185 W. When the feedback is introduced before the pump laser, the backward power loss can be reduced and the pump can be fully utilized, which could promote forward output power and conversion efficiency significantly. Under the maximum pump power of 1847 W,
{"title":"Kilowatt-level supercontinuum generation in a single-stage random fiber laser with a half-open cavity","authors":"Li Jiang, Jinming Wu, R. Song, Zilun Chen, Xiran Zhu, Fengchang Li, Kailong Li, Hanwei Zhang, J. Hou","doi":"10.1017/hpl.2023.66","DOIUrl":"https://doi.org/10.1017/hpl.2023.66","url":null,"abstract":"The random distributed-feedback fiber laser (RFL) is a new approach to obtain a high-power stable supercontinuum (SC) source. To consider both structure simplification and high-power SC output, an innovative structure achieving a kilowatt-level SC output in a single-stage RFL with a half-open cavity is demonstrated in this paper. It consists of a fiber oscillator, a piece of long passive fiber, and a broadband coupler, among which the broadband coupler acting as a feedback device is crucial in SC generation. When the system has no feedback, the backward output power is up to 298 W under the pump power of 1185 W. When the feedback is introduced before the pump laser, the backward power loss can be reduced and the pump can be fully utilized, which could promote forward output power and conversion efficiency significantly. Under the maximum pump power of 1847 W,","PeriodicalId":54285,"journal":{"name":"High Power Laser Science and Engineering","volume":"87 2 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2023-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83603270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
J. Yue, Yulei Wang, Mengyuan Jia, Kai Li, Chen Cao, Yu-De Yu, Yunfei Li, Zhiwei Lü
Abstract This work demonstrates the generation of short pulse duration and high-beam-quality laser pulses using transient stimulated Brillouin scattering at a high repetition rate. Thermal effects and optical breakdown are identified as the main factors that restrict energy reflectivity and beam quality under high repetition rates and transient situations. Through experimental analysis, the interaction length and focal point size are determined to be the key parameters in reducing the thermal effect by reducing the absorption of the laser pulse by the medium. The obtained results show that pulses with a duration of 175 ps and beam quality M2 of around 1.2 can be achieved with a maximum energy reflectivity of over 40% under an interaction length of 50 mm. Furthermore, at an interaction length of 90 mm, a pulse output with a minimum duration of 115 ps (0.5τQ) is achieved.
{"title":"A 115 ps, 100 Hz high-beam-quality laser based on transient stimulated Brillouin scattering pulse compression","authors":"J. Yue, Yulei Wang, Mengyuan Jia, Kai Li, Chen Cao, Yu-De Yu, Yunfei Li, Zhiwei Lü","doi":"10.1017/hpl.2023.61","DOIUrl":"https://doi.org/10.1017/hpl.2023.61","url":null,"abstract":"Abstract This work demonstrates the generation of short pulse duration and high-beam-quality laser pulses using transient stimulated Brillouin scattering at a high repetition rate. Thermal effects and optical breakdown are identified as the main factors that restrict energy reflectivity and beam quality under high repetition rates and transient situations. Through experimental analysis, the interaction length and focal point size are determined to be the key parameters in reducing the thermal effect by reducing the absorption of the laser pulse by the medium. The obtained results show that pulses with a duration of 175 ps and beam quality M2 of around 1.2 can be achieved with a maximum energy reflectivity of over 40% under an interaction length of 50 mm. Furthermore, at an interaction length of 90 mm, a pulse output with a minimum duration of 115 ps (0.5τQ) is achieved.","PeriodicalId":54285,"journal":{"name":"High Power Laser Science and Engineering","volume":"234 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2023-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75570594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
K. Pan, Z. Li, L. Guo, T. Gong, S. Li, Dong Yang, C. Zheng, B. Zhang, X. T. He
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{"title":"Competition among two-plasmon decay of the backscattered light, filamentation of the electron-plasma wave and side stimulated Raman scattering","authors":"K. Pan, Z. Li, L. Guo, T. Gong, S. Li, Dong Yang, C. Zheng, B. Zhang, X. T. He","doi":"10.1017/hpl.2023.65","DOIUrl":"https://doi.org/10.1017/hpl.2023.65","url":null,"abstract":",","PeriodicalId":54285,"journal":{"name":"High Power Laser Science and Engineering","volume":"3 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2023-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80775670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
Tao Pu, K. Tian, Bowen Hu, Zhongjun Wan, Linzhen He, Xuemei Yang, Hanping Wu, Yang Li, Weizhe Wang, H. Liang
Abstract Nonlinear compression has become an obligatory technique along with the development of ultrafast lasers in generating ultrashort pulses with narrow pulse widths and high peak power. In particular, techniques of nonlinear compression have experienced a rapid progress as ytterbium (Yb)-doped lasers with pulse widths in the range from hundreds of femtoseconds to a few picoseconds have become mainstream laser tools for both scientific and industrial applications. Here, we report a simple and stable nonlinear pulse compression technique with high efficiency through cascaded filamentation in air followed by dispersion compensation. Pulses at a center wavelength of 1040 nm with millijoule pulse energy and 160 fs pulse width from a high-power Yb:CaAlGdO4 regenerative amplifier are compressed to 32 fs, with only 2.4% loss from the filamentation process. The compressed pulse has a stable output power with a root-mean-square variation of 0.2% over 1 hour.
{"title":"Simple, stable and efficient nonlinear pulse compression through cascaded filamentation in air","authors":"Tao Pu, K. Tian, Bowen Hu, Zhongjun Wan, Linzhen He, Xuemei Yang, Hanping Wu, Yang Li, Weizhe Wang, H. Liang","doi":"10.1017/hpl.2023.70","DOIUrl":"https://doi.org/10.1017/hpl.2023.70","url":null,"abstract":"Abstract Nonlinear compression has become an obligatory technique along with the development of ultrafast lasers in generating ultrashort pulses with narrow pulse widths and high peak power. In particular, techniques of nonlinear compression have experienced a rapid progress as ytterbium (Yb)-doped lasers with pulse widths in the range from hundreds of femtoseconds to a few picoseconds have become mainstream laser tools for both scientific and industrial applications. Here, we report a simple and stable nonlinear pulse compression technique with high efficiency through cascaded filamentation in air followed by dispersion compensation. Pulses at a center wavelength of 1040 nm with millijoule pulse energy and 160 fs pulse width from a high-power Yb:CaAlGdO4 regenerative amplifier are compressed to 32 fs, with only 2.4% loss from the filamentation process. The compressed pulse has a stable output power with a root-mean-square variation of 0.2% over 1 hour.","PeriodicalId":54285,"journal":{"name":"High Power Laser Science and Engineering","volume":"4 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2023-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75303202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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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