Coulomb rescattering in nondipole interaction of atoms with intense   laser fields

doi:10.1103/PhysRevA.95.011402

CORC > 北京大学 > 工学院

	Coulomb rescattering in nondipole interaction of atoms with intense laser fields
	Tao, J. F. ; Xia, Q. Z. ; Cai, J. ; Fu, L. B. ; Liu, J.
刊名	PHYSICAL REVIEW A
	2017
关键词	ABOVE-THRESHOLD-IONIZATION SPECTRA PHOTOELECTRONS RADIATION PLATEAU
DOI	10.1103/PhysRevA.95.011402
英文摘要	We investigate the ionization dynamics of atoms irradiated by an intense laser field using a semiclassical model that includes magnetic Lorentz force in the rescattering process. We find that the electrons tunneled with different initial transverse momenta (i.e., perpendicular to the instantaneous electric field direction) distributed on a specific circle in the momentum plane can finally converge to the same transverse momentum after experiencing Coulomb forward scattering. These electron trajectories lead to a bright spot structure in the two-dimensional transverse momentum distribution, and particularly in the long-wavelength limit, a nonzero momentum peak in the direction antiparallel to the laser propagation (or radiation pressure) direction. By analyzing the subcycle dynamics of rescattering trajectories, we unveil the underlying mechanism of the anti-intuitive peak. Beyond the strong-field approximation and the dipole approximation, we quantitatively predict the spot center and the peak position. Our results are compared with a recent experiment and some theoretical predictions are given.; National Basic Research Program of China (973 Program) [2013CBA01502, 2013CB834100]; National Natural Science Foundation of China [11404027, 11274051, 11374040, 11475027, 11575027, 11447015]; SCI(E); ARTICLE; 1; 95
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/475652]
专题	工学院
推荐引用方式 GB/T 7714	Tao, J. F.,Xia, Q. Z.,Cai, J.,et al. Coulomb rescattering in nondipole interaction of atoms with intense laser fields[J]. PHYSICAL REVIEW A,2017.
APA	Tao, J. F.,Xia, Q. Z.,Cai, J.,Fu, L. B.,&Liu, J..(2017).Coulomb rescattering in nondipole interaction of atoms with intense laser fields.PHYSICAL REVIEW A.
MLA	Tao, J. F.,et al."Coulomb rescattering in nondipole interaction of atoms with intense laser fields".PHYSICAL REVIEW A (2017).