Excitation of monochromatic and stable electron acoustic wave by two   counter-propagating laser beams

doi:10.1088/1367-2630/aa79b9

CORC > 北京大学 > 工学院

	Excitation of monochromatic and stable electron acoustic wave by two counter-propagating laser beams
	Xiao, C. Z. ; Liu, Z. J. ; Zheng, C. Y. ; He, X. T.
刊名	NEW JOURNAL OF PHYSICS
	2017
关键词	plasma waves electron acoustic wave stimulated Raman scattering stimulated Brillouin scattering laser beat wave acceleration nonlinear dispersion relation kinetic electrostatic electron nonlinear wave NONLINEAR PLASMA-OSCILLATIONS FREQUENCY-SHIFT PHYSICS
DOI	10.1088/1367-2630/aa79b9
英文摘要	The undamped electron acoustic wave is a newly-observed nonlinear electrostatic plasma wave and has potential applications in ion acceleration, laser amplification and diagnostics due to its unique frequency range. We propose to make the first attempt to excite a monochromatic and stable electron acoustic wave (EAW) by two counter-propagating laser beams. The matching conditions relevant to laser frequencies, plasma density, and electron thermal velocity are derived and the harmonic effects of the EAW are excluded. Single-beam instabilities, including stimulated Raman scattering and stimulated Brillouin scattering, on the excitation process are quantified by an interaction quantity, eta = gamma T-B, where gamma is the growth rate of each instability and T-B is the characteristic time of the undamped EAW. The smaller the interaction quantity, the more successfully the monochromatic and stable EAW can be excited. Using one-dimensional Vlasov-Maxwell simulations, we excite EAW wave trains which are amplitude tunable, have a duration of thousands of laser periods, and are monochromatic and stable, by carefully controlling the parameters under the above conditions.; National Natural Science Foundation of China [11575035, 11435011]; National Basic Research Program of China [2013CB834101]; SCI(E); ARTICLE; 19
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/471986]
专题	工学院
推荐引用方式 GB/T 7714	Xiao, C. Z.,Liu, Z. J.,Zheng, C. Y.,et al. Excitation of monochromatic and stable electron acoustic wave by two counter-propagating laser beams[J]. NEW JOURNAL OF PHYSICS,2017.
APA	Xiao, C. Z.,Liu, Z. J.,Zheng, C. Y.,&He, X. T..(2017).Excitation of monochromatic and stable electron acoustic wave by two counter-propagating laser beams.NEW JOURNAL OF PHYSICS.
MLA	Xiao, C. Z.,et al."Excitation of monochromatic and stable electron acoustic wave by two counter-propagating laser beams".NEW JOURNAL OF PHYSICS (2017).