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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 22 — Oct. 31, 2005
  • pp: 8708–8716

Verification of a scaling law in few-cycle laser pulses

Xiaoming Zhang, Jingtao Zhang, Lihua Bai, Qihuang Gong, and Zhizhan Xu  »View Author Affiliations

Optics Express, Vol. 13, Issue 22, pp. 8708-8716 (2005)

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The scaling law of photoionization in few-cycle laser pulses is verified in this paper. By means of numerical solution of time-dependent Schrödinger equation, the photoionization and the asymmetry degree of photoionization of atoms with different binding potential irradiated by various laser pulses are studied. We find that the effect of increasing pulse intensity is compensated by deepening the atomic binding potential. In order to keep the asymmetric photoionization unchanged, if the central frequency of the pulse is enlarged by k times, the atomic binding potential should also be enlarged by k times, and the laser intensity should be enlarged by k3 times.

© 2005 Optical Society of America

OCIS Codes
(020.4180) Atomic and molecular physics : Multiphoton processes
(270.6620) Quantum optics : Strong-field processes
(320.2250) Ultrafast optics : Femtosecond phenomena

ToC Category:
Research Papers

Original Manuscript: September 12, 2005
Revised Manuscript: October 10, 2005
Published: October 31, 2005

Xiaoming Zhang, Jingtao Zhang, Lihua Bai, Qihuang Gong, and Zhizhan Xu, "Verification of a scaling law in few-cycle laser pulses," Opt. Express 13, 8708-8716 (2005)

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  1. D.-S. Guo, Jingtao Zhang, Zhizhan Xu, Xiaofeng Li, Panming Fu, and R. R. Freeman, �??Practical scaling law for photoionization angular distributions,�?? Phys. Rev. A 68, 043404 (1-5) (2003). [CrossRef]
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  11. Jingtao Zhang and Zhizhan Xu, �??Above-threshold ionization of Kr atoms in an infinite sequence of circular polarized few-cycle pulses,�?? Phys. Rev. A 68, 013402 (1-6) (2003 [CrossRef]
  12. Jingtao Zhang, Xunli Feng, D.-S. Guo, and Zhizhan Xu, �??Phase-dependent angular distributions of photoelectrons in an infinite sequence of linearly polarized few-cycle pulses,�?? Phys. Rev. A 69, 043409 (1-6) (2004). [CrossRef]
  13. Jingtao Zhang, Shaohui Li, and Zhizhan Xu, �??Above-threshold ionization of xenon atoms in a bichromatic phase-controlled laser field of linear and circular polarizations,�?? Phys. Rev. A 69, 053410 (1-6) (2004). [CrossRef]
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  15. Xiaoming Zhang, State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing 100087, China and Jingtao Zhang are preparing a manuscript to be called �??Photoionization of H atoms in few-cycle laser pulses.�??
  16. Jingtao Zhang, State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China is preparing a manuscript to be called �??A scaling law of photoionization in few-cycle regime.�??
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