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arXiv · 1111.6033

Probing the longitudinal momentum spread of the electron wave packet at the tunnel exit

Adrian N. Pfeiffer·Claudio Cirelli·Alexandra S. Landsman·Mathias Smolarski·Darko Dimitrovski·Lars B. Madsen·Ursula Keller
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Abstract

We present an ellipticity resolved study of momentum distributions arising from strong-field ionization of Helium at constant intensity. The influence of the ion potential on the departing electron is considered within a semi-classical model consisting of an initial tunneling step and subsequent classical propagation. We find that the momentum distribution can be explained by the presence of a longitudinal momentum spread of the electron at the exit from the tunnel. Our combined experimental and theoretical study provides an estimate of this momentum spread.

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Adrian N. Pfeiffer, Claudio Cirelli, Alexandra S. Landsman, Mathias Smolarski, Darko Dimitrovski, Lars B. Madsen, Ursula Keller. 2012-02-08. Probing the longitudinal momentum spread of the electron wave packet at the tunnel exit. https://doi.org/10.1016/j.chemphys.2012.02.005

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