Department of Physics and Astronomy: Publications and Other Research

 

Document Type

Article

Date of this Version

2016

Citation

Journal of Physics: Conference Series 691 (2016) 012003

doi:10.1088/1742-6596/691/1/012003

Comments

Copyright CC. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence.

Abstract

The eikonal perturbation theory is formulated and applied to photoionization by strong laser pulses. A special emphasis is put on the first order approximation with respect to the binding potential, which is known as the generalized eikonal approximation [2015 Phys. Rev. A 91 053417]. The ordinary eikonal approximation and its domain of applicability is derived from the generalized eikonal approximation. While the former approach is singular for the electron trajectories which return to the potential center, the generalized eikonal avoids this problem. This property makes it a promising tool for further investigations of rescattering and high-order harmonic generation processes.

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