Chinese Journal of Quantum Electronics, Volume. 28, Issue 2, 129(2011)
Asymmetry in photoelectron angular distributions of Rydberg atoms in circularly polarized few-cycle laser pulses
By using a quantum nonperturbative scattering theory, asymmetry in photoionization of high Rydberg states of rubidium atoms in circularly polarized few-cycle microwave frequency laser pulses was investigated. Asymmetry in photoelectron angular distributions was found. The asymmetry is caused by the quantum coherence of different transition channels. Dependence of the asymmetry on carrier-envelope (CE) phase, pulse duration and photoelectron’s energy were discussed. It is found that the asymmetry varies with the CE phase, pulse duration, and photoelectron’s energy dramatically. The result confirms the recent experimental finding. It provides an effective means to measure the CE phase and control the photoelectron angular distributions in microwave frequency optical regime.
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BAI Li-hua, CUI Ting-ting, HOU Lu-qiang, WANG Yan, ZHANG Hui-fang. Asymmetry in photoelectron angular distributions of Rydberg atoms in circularly polarized few-cycle laser pulses[J]. Chinese Journal of Quantum Electronics, 2011, 28(2): 129
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Received: Nov. 16, 2010
Accepted: --
Published Online: Mar. 28, 2011
The Author Email: Li-hua BAI (lhbai@163.com)
CSTR:32186.14.