Open AccessSTIMULATED RAMAN SCATTERING IN LASER PLASMA TARGETS
Author(s) -
Zhang Jia-tai,
Xu Lin-bao,
Chang Tie-Qiang,
Zhang Sho-Gui,
Gaofang Li,
Shihong Wang,
Weixing Wang
Publication year - 1991
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.40.1642
Subject(s) - plasma , laser , thomson scattering , physics , electron temperature , raman scattering , scattering , distribution function , atomic physics , saturation (graph theory) , electron density , plasma parameters , electron , optics , raman spectroscopy , nuclear physics , mathematics , quantum mechanics , combinatorics
In this paper, an one and a half dimensional (1(1/2)-D, one space dimensionand two velocity dimension) plasma cloud-in-cell simulation code (CIC) has beendeveloped. It is used to study SRS in laser-plasma targets from the Shenguang-12# Nd-glass laser facility (λ=1.053μm,τ= 850ps IL= 3×1014—3×1015W/cm2). The results on the linear growth rates of the scattering electromagnetic waves and Lan-gmuir waves and nonlinear saturation are obtained in detail. Other results such as the time development of the electron distribution function and temperature and fraction of hot electron are also presented. In addition,temperature of thermal electron (1.4-2.5keV) in the underdense coronal plasma region is determined by spectrum analysis of SRS light, as well as contour figure for density distribution and averagedensity (0.12-0.14nc, n=1/4nc). These results agree with experiments.