Stimulated Brillouin scattering of backward stimulated Raman scattering
Stimulated Brillouin scattering of backward stimulated Raman scattering
复制标题
后向受激拉曼散射的受激布里渊散射
DOI:
10.1038/s41598-020-59727-4
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发表时间:
2020-02
影响因子:
4.6
通讯作者:
Xiantu He
中科院分区:
文献类型:
--
作者:
Qingsong Feng;Lihua Cao;Zhanjun Liu;Chunyang Zheng;Xiantu He
The rescattering of backward stimulated Raman scattering (BSRS) by stimulated Brillouin scattering (SBS) is found in the high electron density region by relativistic Vlasov-Maxwell simulation and particle-in-cell (PIC) simulation, where the BSRS is in the regime of absolute instability and dominates in all the scatterings. Both one dimension (1D) Vlasov simulation and two dimension (2D) PIC simulation have been given to verify that there exists SBS of BSRS in the regime of absolute instability for BSRS. The SBS of BSRS will be even stronger than forward stimulated Raman scattering (FSRS) and SBS in regime of absolute instability for BSRS. Thus, besides Langmuir decay instability and laser energy absorption, the SBS of BSRS is also an important saturation mechanism of BSRS in high electron density region.
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