Optimization of proton beam quality by obliquely incident laser pre-pulse
| Autor: | O. Rahman, Tian-Cheng Li, Zheng-Mao Sheng |
|---|---|
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Physics of Plasmas. 30 |
| ISSN: | 1089-7674 1070-664X |
| DOI: | 10.1063/5.0130810 |
| Popis: | An investigation has been made to enhance the proton acceleration through the use of an additional obliquely incident lower intense pre-pulse. We observed by means of two-dimensional particle-in-cell simulation that the surface plasma waves can be generated on a flat target using a low-intensity pre-pulse, which is beneficial for enhancing the laser self-focusing and consequently boosting the proton acceleration. We noticed that the proton acceleration is driven by a hybrid acceleration process. The obtained proton beam peak energy and the maximum energy are found to increase by about 205% and 68%, respectively, for the case with pre-pulse in comparison to the cases where the pre-pulse is absent. Moreover, significant degradation of the proton beam energy spread and angular divergence are also seen. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|