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Effect of Phase Factor in Kick Approximation for Super Intense Field Ionization |
| CHENG Tai-wang1,2;LIU Jie2;CHEN Shi-gang2 |
| 1Graduate School, China Academy of Engineering Physics, Beijing 100088
2Center for Nonlinear Studies, Institute of Applied Physics and Computational Mathematics, Beijing 100088
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| Cite this article: |
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CHENG Tai-wang, LIU Jie, CHEN Shi-gang 1998 Chin. Phys. Lett. 15 338-340 |
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Abstract Based on a simple consideration, the kick approximation used by Sundaram et al. in describing the interactions between super intense laser field and single atom is modified. Two different phase factors of the two kicks during one optical period are considered. It is found that we can introduce the factors in a very simple way and derive a new map which can be written in a closed form, and that to include these factors really improves the dynamical description of the system.
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| Keywords:
32.80.Rm
05.45.+b
42.50.Hz
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Published: 01 May 1998
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| PACS: |
32.80.Rm
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(Multiphoton ionization and excitation to highly excited states)
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05.45.+b
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42.50.Hz
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(Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift)
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