Study of the spatial growth of stimulated Brillouin scattering in a gas-filled hohlraum via detecting the driven ion acoustic wave
In an experiment performed on the Shenguang-III prototype laser facility, collective Thomson scattering (TS) is used to study the spatial growth of stimulated Brillouin scattering (SBS) in a gas-filled hohlraum by detecting the SBS-driven ion acoustic wave. High-quality time-resolved SBS and TS spec...
| Main Authors: | , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2024-03-01
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| Series: | Matter and Radiation at Extremes |
| Online Access: | http://dx.doi.org/10.1063/5.0173023 |
| _version_ | 1797228403172048896 |
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| author | Chaoxin Chen Tao Gong Zhichao Li Liang Hao Yonggang Liu Xiangming Liu Hang Zhao Yaoyuan Liu Kaiqiang Pan Qi Li Sanwei Li Zhijun Li Sai Jin Feng Wang Dong Yang |
| author_facet | Chaoxin Chen Tao Gong Zhichao Li Liang Hao Yonggang Liu Xiangming Liu Hang Zhao Yaoyuan Liu Kaiqiang Pan Qi Li Sanwei Li Zhijun Li Sai Jin Feng Wang Dong Yang |
| author_sort | Chaoxin Chen |
| collection | DOAJ |
| description | In an experiment performed on the Shenguang-III prototype laser facility, collective Thomson scattering (TS) is used to study the spatial growth of stimulated Brillouin scattering (SBS) in a gas-filled hohlraum by detecting the SBS-driven ion acoustic wave. High-quality time-resolved SBS and TS spectra are obtained simultaneously in the experiment, and these are analyzed by a steady-state code based on the ray-tracing model. The analysis indicates that ion–ion collisions may play an important role in suppressing SBS growth in the Au plasma; as a result, the SBS excited in the filled gas region is dominant. In the early phase of the laser pulse, SBS originates primarily from the high-density plasma at the edges of the interaction beam channel, which is piled up by the heating of the interaction beam. Throughout the duration of the laser pulse, the presence of the TS probe beam might mitigate SBS by perturbing the density distribution around the region overlapping with the interaction beam. |
| first_indexed | 2024-04-24T14:56:08Z |
| format | Article |
| id | doaj.art-e9d2018bb9ab4ea5a1fb5c404ccce3a1 |
| institution | Directory Open Access Journal |
| issn | 2468-080X |
| language | English |
| last_indexed | 2024-04-24T14:56:08Z |
| publishDate | 2024-03-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | Matter and Radiation at Extremes |
| spelling | doaj.art-e9d2018bb9ab4ea5a1fb5c404ccce3a12024-04-02T19:19:20ZengAIP Publishing LLCMatter and Radiation at Extremes2468-080X2024-03-0192027601027601-1410.1063/5.0173023Study of the spatial growth of stimulated Brillouin scattering in a gas-filled hohlraum via detecting the driven ion acoustic waveChaoxin Chen0Tao Gong1Zhichao Li2Liang Hao3Yonggang Liu4Xiangming Liu5Hang Zhao6Yaoyuan Liu7Kaiqiang Pan8Qi Li9Sanwei Li10Zhijun Li11Sai Jin12Feng Wang13Dong Yang14Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang, Sichuan 621900, People’s Republic of ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang, Sichuan 621900, People’s Republic of ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang, Sichuan 621900, People’s Republic of ChinaInstitute of Applied Physics and Computational Mathematics, Beijing 100094, People’s Republic of ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang, Sichuan 621900, People’s Republic of ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang, Sichuan 621900, People’s Republic of ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang, Sichuan 621900, People’s Republic of ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang, Sichuan 621900, People’s Republic of ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang, Sichuan 621900, People’s Republic of ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang, Sichuan 621900, People’s Republic of ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang, Sichuan 621900, People’s Republic of ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang, Sichuan 621900, People’s Republic of ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang, Sichuan 621900, People’s Republic of ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang, Sichuan 621900, People’s Republic of ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang, Sichuan 621900, People’s Republic of ChinaIn an experiment performed on the Shenguang-III prototype laser facility, collective Thomson scattering (TS) is used to study the spatial growth of stimulated Brillouin scattering (SBS) in a gas-filled hohlraum by detecting the SBS-driven ion acoustic wave. High-quality time-resolved SBS and TS spectra are obtained simultaneously in the experiment, and these are analyzed by a steady-state code based on the ray-tracing model. The analysis indicates that ion–ion collisions may play an important role in suppressing SBS growth in the Au plasma; as a result, the SBS excited in the filled gas region is dominant. In the early phase of the laser pulse, SBS originates primarily from the high-density plasma at the edges of the interaction beam channel, which is piled up by the heating of the interaction beam. Throughout the duration of the laser pulse, the presence of the TS probe beam might mitigate SBS by perturbing the density distribution around the region overlapping with the interaction beam.http://dx.doi.org/10.1063/5.0173023 |
| spellingShingle | Chaoxin Chen Tao Gong Zhichao Li Liang Hao Yonggang Liu Xiangming Liu Hang Zhao Yaoyuan Liu Kaiqiang Pan Qi Li Sanwei Li Zhijun Li Sai Jin Feng Wang Dong Yang Study of the spatial growth of stimulated Brillouin scattering in a gas-filled hohlraum via detecting the driven ion acoustic wave Matter and Radiation at Extremes |
| title | Study of the spatial growth of stimulated Brillouin scattering in a gas-filled hohlraum via detecting the driven ion acoustic wave |
| title_full | Study of the spatial growth of stimulated Brillouin scattering in a gas-filled hohlraum via detecting the driven ion acoustic wave |
| title_fullStr | Study of the spatial growth of stimulated Brillouin scattering in a gas-filled hohlraum via detecting the driven ion acoustic wave |
| title_full_unstemmed | Study of the spatial growth of stimulated Brillouin scattering in a gas-filled hohlraum via detecting the driven ion acoustic wave |
| title_short | Study of the spatial growth of stimulated Brillouin scattering in a gas-filled hohlraum via detecting the driven ion acoustic wave |
| title_sort | study of the spatial growth of stimulated brillouin scattering in a gas filled hohlraum via detecting the driven ion acoustic wave |
| url | http://dx.doi.org/10.1063/5.0173023 |
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