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Chin. Opt. Lett.
 Home  List of Issues    Issue 01 , Vol. 09 , 2011    10.3788/COL201109.010202


Above-threshold detachment of negative ions by circularly polarized few-cycle laser fields
Lihua Bai, Yuheng Liu, Tingting Cui, Yan Wang, Dongmei Deng, Huifang Zhang
Department of Physics, [Shanghai University], Shanghai 200444, China

Chin. Opt. Lett., 2011, 09(01): pp.010202

DOI:10.3788/COL201109.010202
Topic:Atomic and molecular physics
Keywords(OCIS Code): 020.4180  020.2649  

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.

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Received:2010/8/2
Accepted:2010/9/21
Posted online:2011/1/1

Get Citation: Lihua Bai, Yuheng Liu, Tingting Cui, Yan Wang, Dongmei Deng, Huifang Zhang, "Above-threshold detachment of negative ions by circularly polarized few-cycle laser fields," Chin. Opt. Lett. 09(01), 010202(2011)

Note: This work was supported by the National Natural Science Foundation of China under Grant Nos. 60908006, 10804067, and 60407007.



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