Effect of pulse shapes and phases on the stabilization of atoms in intense laser fields

Zengxiu Zhao, Xiao-Min Tong, Chii-Dong Lin
Kansas State University

We have investigated the effect of pulse shapes and phases on the suppression of atoms in intense laser fields by performing both 1D and 3D numerical calculations. We show that the turn-on process may either deliver populations to Rydberg states to suppress ionization or induce a drift velocity to the electron to increase the ionization. The dependence of the drift velocity on the phase of the laser pulse is also investigated

This work was supported by the Chemical Sciences, Geosciences and Biosciences Division,
Office of Basic Energy Sciences, Office of Science, U.S. Department of Energy.

Submitted to DAMOP 2002, May 2002 in Williamsburg, VA.

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