Angular momentum oscillation in spiral-shaped foil plasmas
Two types of spiral-shaped foils are investigated for generating significant angular momentum (AM) in plasmas by reflecting a relativistic Gaussian pulse into a vortex laser beam with the same topological charge. This is the first time to find that AM oscillation exists in specific spiral-shaped foi...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2019-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/ab150a |
| _version_ | 1797750102249439232 |
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| author | Weifeng Gong Baifei Shen Lingang Zhang Xiaomei Zhang |
| author_facet | Weifeng Gong Baifei Shen Lingang Zhang Xiaomei Zhang |
| author_sort | Weifeng Gong |
| collection | DOAJ |
| description | Two types of spiral-shaped foils are investigated for generating significant angular momentum (AM) in plasmas by reflecting a relativistic Gaussian pulse into a vortex laser beam with the same topological charge. This is the first time to find that AM oscillation exists in specific spiral-shaped foils during laser-plasma interaction, while AM oscillation is not observed in other types of foils. Both three-dimensional particle-in-cell simulations and theoretical results have confirmed this finding. AM oscillation is demonstrated to be induced by the asymmetric field on the foil surface, and this asymmetric field can be modulated in order to strengthen or weaken the oscillation amplitude by redesigning the foil surface. AM oscillation is expected to bring insight into radiation, particle heating and other mechanisms with AM effects. |
| first_indexed | 2024-03-12T16:28:47Z |
| format | Article |
| id | doaj.art-ba9517d4a10e4510b57a03a2c0b306f8 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:28:47Z |
| publishDate | 2019-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-ba9517d4a10e4510b57a03a2c0b306f82023-08-08T15:37:17ZengIOP PublishingNew Journal of Physics1367-26302019-01-0121404302210.1088/1367-2630/ab150aAngular momentum oscillation in spiral-shaped foil plasmasWeifeng Gong0Baifei Shen1https://orcid.org/0000-0003-1021-6991Lingang Zhang2Xiaomei Zhang3State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics , Chinese Academy of Sciences, Shanghai 201800, People’s Republic of China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences , Beijing 100049, People’s Republic of ChinaState Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics , Chinese Academy of Sciences, Shanghai 201800, People’s Republic of China; Department of Physics, Shanghai Normal University , Shanghai, 200234, People’s Republic of ChinaState Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics , Chinese Academy of Sciences, Shanghai 201800, People’s Republic of ChinaState Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics , Chinese Academy of Sciences, Shanghai 201800, People’s Republic of ChinaTwo types of spiral-shaped foils are investigated for generating significant angular momentum (AM) in plasmas by reflecting a relativistic Gaussian pulse into a vortex laser beam with the same topological charge. This is the first time to find that AM oscillation exists in specific spiral-shaped foils during laser-plasma interaction, while AM oscillation is not observed in other types of foils. Both three-dimensional particle-in-cell simulations and theoretical results have confirmed this finding. AM oscillation is demonstrated to be induced by the asymmetric field on the foil surface, and this asymmetric field can be modulated in order to strengthen or weaken the oscillation amplitude by redesigning the foil surface. AM oscillation is expected to bring insight into radiation, particle heating and other mechanisms with AM effects.https://doi.org/10.1088/1367-2630/ab150arelativistic vortex beamorbital angular momentumoscillation |
| spellingShingle | Weifeng Gong Baifei Shen Lingang Zhang Xiaomei Zhang Angular momentum oscillation in spiral-shaped foil plasmas New Journal of Physics relativistic vortex beam orbital angular momentum oscillation |
| title | Angular momentum oscillation in spiral-shaped foil plasmas |
| title_full | Angular momentum oscillation in spiral-shaped foil plasmas |
| title_fullStr | Angular momentum oscillation in spiral-shaped foil plasmas |
| title_full_unstemmed | Angular momentum oscillation in spiral-shaped foil plasmas |
| title_short | Angular momentum oscillation in spiral-shaped foil plasmas |
| title_sort | angular momentum oscillation in spiral shaped foil plasmas |
| topic | relativistic vortex beam orbital angular momentum oscillation |
| url | https://doi.org/10.1088/1367-2630/ab150a |
| work_keys_str_mv | AT weifenggong angularmomentumoscillationinspiralshapedfoilplasmas AT baifeishen angularmomentumoscillationinspiralshapedfoilplasmas AT lingangzhang angularmomentumoscillationinspiralshapedfoilplasmas AT xiaomeizhang angularmomentumoscillationinspiralshapedfoilplasmas |