Focal spot polarization distribution under polarization smoothing
Polarization smoothing can effectively improve the uniformity of focal spots. In this study, we theoretically and experimentally investigated the polarization synthesis of the focal spot under a birefringent wedge (BW) and speckle under the coupling of the BW and continuous phase plate. Polarization...
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| Format: | Article |
| Language: | English |
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Cambridge University Press
2025-01-01
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| Series: | High Power Laser Science and Engineering |
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| Online Access: | https://www.cambridge.org/core/product/identifier/S2095471925000106/type/journal_article |
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| author | Yanghui Tang Shenlei Zhou Shouying Xu Cheng Liu |
| author_facet | Yanghui Tang Shenlei Zhou Shouying Xu Cheng Liu |
| author_sort | Yanghui Tang |
| collection | DOAJ |
| description | Polarization smoothing can effectively improve the uniformity of focal spots. In this study, we theoretically and experimentally investigated the polarization synthesis of the focal spot under a birefringent wedge (BW) and speckle under the coupling of the BW and continuous phase plate. Polarization distribution was experimentally obtained using rotating quarter-wave plate measurement under a specific wedge angle. The simulated and experimental results are consistent, demonstrating that the focal spot is in a state of coexistence of elliptical and linear polarizations. In addition, the polarization state is determined by the ratio of the amplitudes and the phase difference between the sub-beams. The simulation results showed that the proportion of linear polarization increased with the separation angle of the sub-beam. In contrast, it decreased with the incident light aperture. This research is crucial for accurately describing the polarization distribution and further understanding the laser–plasma interactions. |
| format | Article |
| id | doaj-art-3fa4f4b3e0ff43b3b296c9ffca8abeb5 |
| institution | OA Journals |
| issn | 2095-4719 2052-3289 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Cambridge University Press |
| record_format | Article |
| series | High Power Laser Science and Engineering |
| spelling | doaj-art-3fa4f4b3e0ff43b3b296c9ffca8abeb52025-08-20T02:27:09ZengCambridge University PressHigh Power Laser Science and Engineering2095-47192052-32892025-01-011310.1017/hpl.2025.10Focal spot polarization distribution under polarization smoothingYanghui Tang0https://orcid.org/0000-0001-6601-9925Shenlei Zhou1Shouying Xu2Cheng Liu3Key Laboratory of High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, China Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, ChinaKey Laboratory of High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, ChinaKey Laboratory of High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, ChinaKey Laboratory of High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, ChinaPolarization smoothing can effectively improve the uniformity of focal spots. In this study, we theoretically and experimentally investigated the polarization synthesis of the focal spot under a birefringent wedge (BW) and speckle under the coupling of the BW and continuous phase plate. Polarization distribution was experimentally obtained using rotating quarter-wave plate measurement under a specific wedge angle. The simulated and experimental results are consistent, demonstrating that the focal spot is in a state of coexistence of elliptical and linear polarizations. In addition, the polarization state is determined by the ratio of the amplitudes and the phase difference between the sub-beams. The simulation results showed that the proportion of linear polarization increased with the separation angle of the sub-beam. In contrast, it decreased with the incident light aperture. This research is crucial for accurately describing the polarization distribution and further understanding the laser–plasma interactions.https://www.cambridge.org/core/product/identifier/S2095471925000106/type/journal_articlepolarization smoothingpolarization synthesisStokes parameters |
| spellingShingle | Yanghui Tang Shenlei Zhou Shouying Xu Cheng Liu Focal spot polarization distribution under polarization smoothing High Power Laser Science and Engineering polarization smoothing polarization synthesis Stokes parameters |
| title | Focal spot polarization distribution under polarization smoothing |
| title_full | Focal spot polarization distribution under polarization smoothing |
| title_fullStr | Focal spot polarization distribution under polarization smoothing |
| title_full_unstemmed | Focal spot polarization distribution under polarization smoothing |
| title_short | Focal spot polarization distribution under polarization smoothing |
| title_sort | focal spot polarization distribution under polarization smoothing |
| topic | polarization smoothing polarization synthesis Stokes parameters |
| url | https://www.cambridge.org/core/product/identifier/S2095471925000106/type/journal_article |
| work_keys_str_mv | AT yanghuitang focalspotpolarizationdistributionunderpolarizationsmoothing AT shenleizhou focalspotpolarizationdistributionunderpolarizationsmoothing AT shouyingxu focalspotpolarizationdistributionunderpolarizationsmoothing AT chengliu focalspotpolarizationdistributionunderpolarizationsmoothing |