Acta Optica Sinica, Volume. 38, Issue 7, 0702002(2018)
Control and Preparation of Low Excited States of He Atoms Interacted with Strong Laser Field
A method for preparing the ground and low excited states with controllable populations of He atoms driven by a laser pulse is proposed based on an accurate angular-momentum-dependent model potential. The corresponding laser parameters of wavelength, peak intensity and pulse duration are obtained by the numerical solution of the three-dimensional time-dependent Schr dinger equation. The numerical simulation results show that for the 2s, 2p and 3p states, the populations at the end of laser pulse can all reach 100%, while for the states of 3s and 3d, the maximum populations are only 80% and 86%, respectively, because of their very close energy levels and small ionization probabilities.
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bin Zhu, Guoli Wang, Xiaoyong Li, Xiaoxin Zhou. Control and Preparation of Low Excited States of He Atoms Interacted with Strong Laser Field[J]. Acta Optica Sinica, 2018, 38(7): 0702002
Category: Atomic and Molecular Physics
Received: Jan. 25, 2018
Accepted: --
Published Online: Sep. 5, 2018
The Author Email: Wang Guoli (wanggl@nwnu.edu.cn)