Diverse spatiotemporal high harmonic generation
A spatiotemporal optical vortex (STOV) has a transverse orbital angular momentum (TOAM) perpendicular to its direction of propagation. We propose the generation of intense spatiotemporal vortical high harmonics with tunable TOAM using two strong STOV beams that simultaneously interact with a solid t...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | New Journal of Physics |
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| Online Access: | https://doi.org/10.1088/1367-2630/adaf4f |
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| _version_ | 1832086578820808704 |
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| author | Xiaofei Li Xiaomei Zhang Xiaolong Zheng Fanqiu Kong Jinlong Xing Yuanyuan Liu Baifei Shen |
| author_facet | Xiaofei Li Xiaomei Zhang Xiaolong Zheng Fanqiu Kong Jinlong Xing Yuanyuan Liu Baifei Shen |
| author_sort | Xiaofei Li |
| collection | DOAJ |
| description | A spatiotemporal optical vortex (STOV) has a transverse orbital angular momentum (TOAM) perpendicular to its direction of propagation. We propose the generation of intense spatiotemporal vortical high harmonics with tunable TOAM using two strong STOV beams that simultaneously interact with a solid thin foil from both sides. Theoretical predictions of harmonic order and topological charge were validated using particle-in-cell simulations. The results show that harmonics originate from the reflection and transmission of the two driving beams and that the ‘monochromaticity’ of the harmonics in the topological charge domain depends on the topological charges of the two driving beams. |
| format | Article |
| id | doaj-art-7767ecd7d1184a21ac525f80579da552 |
| institution | Kabale University |
| issn | 1367-2630 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj-art-7767ecd7d1184a21ac525f80579da5522025-02-06T11:24:07ZengIOP PublishingNew Journal of Physics1367-26302025-01-0127202300810.1088/1367-2630/adaf4fDiverse spatiotemporal high harmonic generationXiaofei Li0Xiaomei Zhang1https://orcid.org/0000-0002-2437-3595Xiaolong Zheng2https://orcid.org/0000-0003-3047-2933Fanqiu Kong3Jinlong Xing4Yuanyuan Liu5Baifei Shen6Department of Physics, Shanghai Normal University , Shanghai 200234, People’s Republic of ChinaDepartment of Physics, Shanghai Normal University , Shanghai 200234, People’s Republic of ChinaDepartment of Physics, Shanghai Normal University , Shanghai 200234, People’s Republic of ChinaDepartment of Physics, Shanghai Normal University , Shanghai 200234, People’s Republic of ChinaDepartment of Physics, Shanghai Normal University , Shanghai 200234, People’s Republic of ChinaDepartment of Physics, Shanghai Normal University , Shanghai 200234, People’s Republic of ChinaDepartment of Physics, Shanghai Normal University , Shanghai 200234, People’s Republic of ChinaA spatiotemporal optical vortex (STOV) has a transverse orbital angular momentum (TOAM) perpendicular to its direction of propagation. We propose the generation of intense spatiotemporal vortical high harmonics with tunable TOAM using two strong STOV beams that simultaneously interact with a solid thin foil from both sides. Theoretical predictions of harmonic order and topological charge were validated using particle-in-cell simulations. The results show that harmonics originate from the reflection and transmission of the two driving beams and that the ‘monochromaticity’ of the harmonics in the topological charge domain depends on the topological charges of the two driving beams.https://doi.org/10.1088/1367-2630/adaf4fspatiotemporal optical vortextransverse orbital angular momentumhigh harmonics generationrelativistic laser |
| spellingShingle | Xiaofei Li Xiaomei Zhang Xiaolong Zheng Fanqiu Kong Jinlong Xing Yuanyuan Liu Baifei Shen Diverse spatiotemporal high harmonic generation New Journal of Physics spatiotemporal optical vortex transverse orbital angular momentum high harmonics generation relativistic laser |
| title | Diverse spatiotemporal high harmonic generation |
| title_full | Diverse spatiotemporal high harmonic generation |
| title_fullStr | Diverse spatiotemporal high harmonic generation |
| title_full_unstemmed | Diverse spatiotemporal high harmonic generation |
| title_short | Diverse spatiotemporal high harmonic generation |
| title_sort | diverse spatiotemporal high harmonic generation |
| topic | spatiotemporal optical vortex transverse orbital angular momentum high harmonics generation relativistic laser |
| url | https://doi.org/10.1088/1367-2630/adaf4f |
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