Above-threshold detachment of negative ions by circularly polarized few-cycle laser fields
Chinese Optics Letters, Vol. 9, Issue 1, pp. 010202- (2011)
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Abstract
In accordance with nonperturbative quantum scattering theory, we investigate photoelectron angular distributions (PADs) from above-threshold detachment (ATD) of negative ions irradiated by circularly polarized few-cycle laser fields. Electrons ejected on the polarization plane demonstrate distinct anisotropies in angular distributions which distinctly vary with the carrier-envelope (CE) phase. The anisotropy is caused by interference between transition channels; it also depends strongly on laser frequency, pulse duration, and kinetic energy of photoelectrons. Optimal emission of photoelectrons, which varies with CE phase, makes it possible to control photoelectron motion.
© 2011 Chinese Optics Letters
OCIS Codes
(020.4180) Atomic and molecular physics : Multiphoton processes
(020.2649) Atomic and molecular physics : Strong field laser physics
Citation
Lihua Bai, Yuheng Liu, Tingting Cui, Yan Wang, Dongmei Deng, and Huifang Zhang, "Above-threshold detachment of negative ions by circularly polarized few-cycle
laser fields," Chin. Opt. Lett. 9, 010202- (2011)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-9-1-010202
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