Breaking symmetry in propagation of radially and azimuthally polarized high power laser pulses in underdense plasma
| Autor: | Pathak, Naveen, Zhidkov, Alexei, Nakanii, Nobuhiko, Masuda, Shinichi, Hosokai, Tomonao, Kodama, R. |
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| Rok vydání: | 2015 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1063/1.4942942 |
| Popis: | Propagation of relativistically intense azimuthally or radially polarized laser pulses (RPP) in underdense plasmas is demonstrated to be unstable, via 3D particle-in-cell simulation and disregarding the Kerr non-linearity. Strong pulse filamentation occurs for RPP in transversely uniform plasma with an increment, $\Gamma$, close to the well-known one depending on acceleration, $\alpha$, and modulated density gradient length, $L$, as $\Gamma \approx (\alpha/L)^{1/2}$. In deep plasma channels the instability vanishes. Electron self-injection and acceleration by the resulting laser pulse wake is explored. Comment: The paper need to be written in a more proper way |
| Databáze: | arXiv |
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