Research Papers in Physics and Astronomy

 

Date of this Version

October 2007

Comments

Published in PHYSICAL REVIEW A 76, 043401 (2007). DOI: 10.1103/PhysRevA.76.043401 Copyright © 2007 The American Physical Society. Used by permission.

Abstract

We analyze carrier-envelope phase (CEP) effects on electron wave-packet momentum and energy spectra produced by one or two few-cycle attosecond xuv pulses. The few-cycle attosecond pulses are assumed to have arbitrary phases. We predict CEP effects on ionized electron wave-packet momentum distributions produced by attosecond pulses having durations comparable to those obtained by Sansone et al. [Science 314, 443 (2006)]. The onset of significant CEP effects is predicted to occur for attosecond pulse field strengths close to those possible with current experimental capabilities. Our results are based on single-active-electron solutions of the three-dimensional, time-dependent Schrödinger equation including atomic potentials appropriate for the H and He atoms.

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