Upper-limit power for self-guided propagation of intense lasers in underdense plasma
It is found that there is an upper-limit critical power for self-guided propagation of intense lasers in plasma in addition to the well-known lower-limit critical power set by the relativistic effect. Above this upper-limit critical power, the laser pulse experiences defocusing due to expulsion of l...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Cambridge University Press
2013-09-01
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| Series: | High Power Laser Science and Engineering |
| Subjects: | |
| Online Access: | https://www.cambridge.org/core/product/identifier/S2095471913000121/type/journal_article |
| _version_ | 1811156147333234688 |
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| author | Wei-Min Wang Zheng-Ming Sheng Yu-Tong Li Jie Zhang |
| author_facet | Wei-Min Wang Zheng-Ming Sheng Yu-Tong Li Jie Zhang |
| author_sort | Wei-Min Wang |
| collection | DOAJ |
| description | It is found that there is an upper-limit critical power for self-guided propagation of intense lasers in plasma in addition to the well-known lower-limit critical power set by the relativistic effect. Above this upper-limit critical power, the laser pulse experiences defocusing due to expulsion of local plasma electrons by the transverse ponderomotive force. Associated with the upper-limit power, a lower-limit critical plasma density is also found for a given laser spot size, below which self-focusing does not occur for any laser power. Both the upper-limit power and the lower-limit density are derived theoretically and verified by two-dimensional particle-in-cell simulations. The present study provides new guidance for experimental designs, where self-guided propagation of lasers is essential. |
| first_indexed | 2024-04-10T04:45:30Z |
| format | Article |
| id | doaj.art-e077bf45df9e42df801a298131343b51 |
| institution | Directory Open Access Journal |
| issn | 2095-4719 2052-3289 |
| language | English |
| last_indexed | 2024-04-10T04:45:30Z |
| publishDate | 2013-09-01 |
| publisher | Cambridge University Press |
| record_format | Article |
| series | High Power Laser Science and Engineering |
| spelling | doaj.art-e077bf45df9e42df801a298131343b512023-03-09T12:35:45ZengCambridge University PressHigh Power Laser Science and Engineering2095-47192052-32892013-09-011747910.1017/hpl.2013.12Upper-limit power for self-guided propagation of intense lasers in underdense plasmaWei-Min Wang0Zheng-Ming Sheng1Yu-Tong Li2Jie Zhang3Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, ChinaBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China Key Laboratory for Laser Plasmas (Ministry of Education) and Department of Physics, Shanghai Jiao Tong University, Shanghai 200240, ChinaBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, ChinaBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China Key Laboratory for Laser Plasmas (Ministry of Education) and Department of Physics, Shanghai Jiao Tong University, Shanghai 200240, ChinaIt is found that there is an upper-limit critical power for self-guided propagation of intense lasers in plasma in addition to the well-known lower-limit critical power set by the relativistic effect. Above this upper-limit critical power, the laser pulse experiences defocusing due to expulsion of local plasma electrons by the transverse ponderomotive force. Associated with the upper-limit power, a lower-limit critical plasma density is also found for a given laser spot size, below which self-focusing does not occur for any laser power. Both the upper-limit power and the lower-limit density are derived theoretically and verified by two-dimensional particle-in-cell simulations. The present study provides new guidance for experimental designs, where self-guided propagation of lasers is essential.https://www.cambridge.org/core/product/identifier/S2095471913000121/type/journal_articlelaser plasma interaction; laser wakefield acceleration; particle-in-cell; self-focusing |
| spellingShingle | Wei-Min Wang Zheng-Ming Sheng Yu-Tong Li Jie Zhang Upper-limit power for self-guided propagation of intense lasers in underdense plasma High Power Laser Science and Engineering laser plasma interaction; laser wakefield acceleration; particle-in-cell; self-focusing |
| title | Upper-limit power for self-guided propagation of intense lasers in underdense plasma |
| title_full | Upper-limit power for self-guided propagation of intense lasers in underdense plasma |
| title_fullStr | Upper-limit power for self-guided propagation of intense lasers in underdense plasma |
| title_full_unstemmed | Upper-limit power for self-guided propagation of intense lasers in underdense plasma |
| title_short | Upper-limit power for self-guided propagation of intense lasers in underdense plasma |
| title_sort | upper limit power for self guided propagation of intense lasers in underdense plasma |
| topic | laser plasma interaction; laser wakefield acceleration; particle-in-cell; self-focusing |
| url | https://www.cambridge.org/core/product/identifier/S2095471913000121/type/journal_article |
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