Collective absorption of laser radiation in plasma at sub-relativistic intensities

	Collective absorption of laser radiation in plasma at sub-relativistic intensities
刊名	高功率激光科学与工程:英文版
	2019
卷号	007
关键词	inertial confinement fusion parametric instabilities
ISSN号	2095-4719
英文摘要	Processes of laser energy absorption and electron heating in an expanding plasma in the range of irradiances Iλ^2=1015–1016 W·μm^2/cm^2 are studied with the aid of kinetic simulations.The results show a strong reflection due to stimulated Brillouin scattering and a significant collisionless absorption related to stimulated Raman scattering near and below the quarter critical density.Also presented are parametric decay instability and resonant excitation of plasma waves near the critical density.All these processes result in the excitation of high-amplitude electron plasma waves and electron acceleration.The spectrum of scattered radiation is significantly modified by secondary parametric processes,which provide information on the spatial localization of nonlinear absorption and hot electron characteristics.The considered domain of laser and plasma parameters is relevant for the shock ignition scheme of inertial confinement fusion.
语种	中文
CSCD记录号	CSCD:6614266
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/68925]
专题	中国科学院合肥物质科学研究院
推荐引用方式 GB/T 7714	. Collective absorption of laser radiation in plasma at sub-relativistic intensities[J]. 高功率激光科学与工程:英文版,2019,007.
APA	(2019).Collective absorption of laser radiation in plasma at sub-relativistic intensities.高功率激光科学与工程:英文版,007.
MLA	"Collective absorption of laser radiation in plasma at sub-relativistic intensities".高功率激光科学与工程:英文版 007(2019).