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| Main Authors: | , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2021
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2103.03421 |
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| _version_ | 1866917697144487936 |
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| author | Wu, Zhaohui Zeng, Xiaoming Li, Zhaoli Zhang, Zhimeng Wang, Xiaodong Hu, Bilong Wang, Xiao Mu, Jie Su, Jingqin Wei, Xiaofeng Zuo, Yanlei |
| author_facet | Wu, Zhaohui Zeng, Xiaoming Li, Zhaoli Zhang, Zhimeng Wang, Xiaodong Hu, Bilong Wang, Xiao Mu, Jie Su, Jingqin Wei, Xiaofeng Zuo, Yanlei |
| contents | It is proposed a new method of compressing laser pulse by fast extending plasma gratings(FEPG), which is created by ionizing the hypersound wave generated by stimulated Brillouin scattering(SBS) in the background gas. Ionized by a short laser pulse, the phonon forms a light-velocity FEPG to fully reflect a resonant pump laser. As the reflecting surface moves with a light velocity, the reflected pulse is temporally overlapped and compressed. This regime is supported by the simulation results of a fully kinetic particle-in-cell(PIC) code Opic with a laser wavelength of 1um, displaying a pump pulse is compressed from 13ps to a few cycles(7.2fs), with an efficiency close to 80%. It is a promising method to produce critical laser powers due to several features: high efficiency without a linear stage, robustness to plasma instabilities, no seed and a wide range of pump intensity. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2103_03421 |
| institution | arXiv |
| publishDate | 2021 |
| record_format | arxiv |
| spellingShingle | Laser Compression via fast-extending plasma gratings Wu, Zhaohui Zeng, Xiaoming Li, Zhaoli Zhang, Zhimeng Wang, Xiaodong Hu, Bilong Wang, Xiao Mu, Jie Su, Jingqin Wei, Xiaofeng Zuo, Yanlei Plasma Physics It is proposed a new method of compressing laser pulse by fast extending plasma gratings(FEPG), which is created by ionizing the hypersound wave generated by stimulated Brillouin scattering(SBS) in the background gas. Ionized by a short laser pulse, the phonon forms a light-velocity FEPG to fully reflect a resonant pump laser. As the reflecting surface moves with a light velocity, the reflected pulse is temporally overlapped and compressed. This regime is supported by the simulation results of a fully kinetic particle-in-cell(PIC) code Opic with a laser wavelength of 1um, displaying a pump pulse is compressed from 13ps to a few cycles(7.2fs), with an efficiency close to 80%. It is a promising method to produce critical laser powers due to several features: high efficiency without a linear stage, robustness to plasma instabilities, no seed and a wide range of pump intensity. |
| title | Laser Compression via fast-extending plasma gratings |
| topic | Plasma Physics |
| url | https://arxiv.org/abs/2103.03421 |