Rescattering effects in the multiphoton regime

Authors

M. V. Frolov, Voronezh State University, Voronezh, Russia
A. V. Flegel, Voronezh State University, Voronezh, Russia
N. L. Manakov, Voronezh State UniversityFollow
Anthony F. Starace, University of Nebraska-LincolnFollow

Date of this Version

12-14-2005

Comments

Published in Journal of Physics B: Atomic, Molecular and Optical Physics, vol. 38, no. 23 (December 14, 2005). pp. L375–L382. Copyright © 2005 IOP Publishing Ltd. Used by permission.

Abstract

LETTER TO THE EDITOR

The plateau features that characterize the low-frequency spectra of fundamental strong-field processes such as harmonic generation, above-threshold ionization and laser-assisted electron-atom scattering are shown to exist also for photon energies E_γ of the order of the energy |E₀| of a bound electron. The existence of these rescattering effects in such a high-frequency (and thus nontunnelling) regime is supported by accurate quantum analyses of intense Ti-Sapphire laser interactions with halogen negative ions, for which E_γ ≈ 0.5|E0|.