| Autor: |
Li, J., Zhang, S., Krauland, C. M., Wen, H., Beg, F. N., Ren, C., Wei, M. S. |
| Rok vydání: |
2019 |
| Předmět: |
|
| Zdroj: |
Phys. Rev. E 101, 033206 (2020) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevE.101.033206 |
| Popis: |
Two-dimension Particle-in-cell simulations for laser plasma interaction with laser intensity of $10^{16} W/cm^2$, plasma density range of 0.01-0.28$n_c$ and scale length of $230 -330 \mu m$ showed significant pump depletion of the laser energy due to stimulated Raman scattering (SRS) and stimulated Brillouin scattering (SBS) in the low density region ($n_e=0.01-0.2 n_c$). The simulations identified hot electrons generated by SRS in the low density region with moderate energy and by two-plasmon-decay (TPD) near $n_e=0.25n_c$ with higher energy. The overall hot electron temperature (46 keV) and conversion efficiency (3%) were consistent with the experiment measurements. The simulations also showed artificially reducing SBS would lead to stronger SRS and a softer hot electron spectrum. |
| Databáze: |
arXiv |
| Externí odkaz: |
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