Photoelectron angular distribution in two-pathway ionization of neon with femtosecond XUV pulses

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Douguet, Nicolas
Gryzlova, Elena V
Staroselskaya, Ekaterina I
Bartschat, Klaus
Grum-Grzhimailo, Alexei N
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2017
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Abstract

We analyze the photoelectron angular distribution in two-pathway interference between nonresonant one-photon and resonant two-photon ionization of neon. We consider a bichromatic femtosecond XUV pulse whose fundamental frequency is tuned near the 2p53s atomic states of neon. The time-dependent Schrödinger equation is solved and the results are employed to compute the angular distribution and the associated anisotropy parameters at the main photoelectron line. We also employ a time-dependent perturbative approach, which allows obtaining information on the process for a large range of pulse parameters, including the steady-state case of continuous radiation, i.e., an infinitely long pulse. The results from the two methods are in relatively good agreement over the domain of applicability of perturbation theory.

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European Physical Journal D

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71

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5

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© 2017 Springer. This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: https://doi.org/10.1140/epjd/e2017-70695-7

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Physical sciences

Science & Technology

Optics

Physics, Atomic, Molecular & Chemical

Physics

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Douguet, N; Gryzlova, EV; Staroselskaya, EI; Bartschat, K; Grum-Grzhimailo, AN, Photoelectron angular distribution in two-pathway ionization of neon with femtosecond XUV pulses, European Physical Journal D, 2017, 71 (5), pp. 105

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