Simulation of stimulated Raman backscatter from interaction between ultrashort, ultrahigh intensity laser and tenuous plasma

wang jian; cai da-feng; gu yu-qiu; yang xiang-dong; tang cui-ming

Volume 20 Issue 01

Jan. 2008

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Article Navigation > High Power Laser and Particle Beams > 2008 > 20(01): 0-

xu yewei, luo xuan, zhu fanghua, et al. Fabrication of low density poly(vinylcyclohexane) foams[J]. High Power Laser and Particle Beams, 2010, 22.

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wang jian, cai da-feng, gu yu-qiu, et al. Simulation of stimulated Raman backscatter from interaction between ultrashort, ultrahigh intensity laser and tenuous plasma[J]. High Power Laser and Particle Beams, 2008, 20.

xu yewei, luo xuan, zhu fanghua, et al. Fabrication of low density poly(vinylcyclohexane) foams[J]. High Power Laser and Particle Beams, 2010, 22.

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Simulation of stimulated Raman backscatter from interaction between ultrashort, ultrahigh intensity laser and tenuous plasma

1.
Institute of Atomic and Molecular Physics,Sichuan University,Chengdu 610065,China;
2.
Research Center of Laser Fusion,CAEP,P.O.Box 919-986,Mianyang 621900,China;
3.
Department of Physics,Neijiang Normal College,Neijiang 641112,China

Publish Date: 2008-01-15

Abstract

Abstract

This paper studies the excitation of the stimulated Raman backscatter of ultrashort and ultrahigh intensity laser pulse. Through one dimentional particle-in-cell code LPIC++, it is found that in the relativitic condition, the stimulated Raman backscatter is not in the mormal mode but strongly coupled. The frequency spectra become broad with blueshift and the interval between the peaks are greater than the frequency of the plasma wave frequency. These results are consistent with the prediction of a srongly coupled Raman theory.
- particle simulation,
- ultrashort and ultrahigh intensity laser,
- stimulated raman backscatter,
- strongly coupled mode,

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