Resonant gradient force on atom interacting with laser field

Jianxing Fang, Xianfeng F. Chen, Shiqun Zhu, Rong Zhang

Research output: Contribution to journalLetter, comment/opinion or interviewpeer-review


The gradient force, as a function of position and velocity, is derived for a two-level atom interacting with a standing-wave laser field. Basing on optical Bloch equations, the numerical solutions for the gradient force f_(|_;n) (n = 0, 1, 2, 3, 4, ...) pointing in the direction of the transverse of the laser beam are given. It is shown the higher order gradient force plays important role at strong intensity (G = 64), the contribution of them can not be neglected.
Original languageEnglish
Pages (from-to)122-124
Number of pages3
JournalChinese Optics Letters
Issue number2
Publication statusPublished - 20 Feb 2003


  • gradient force
  • position
  • velocity
  • two-level atom interacting
  • standing-wave laser field
  • optical Bloch equations
  • order gradient


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