Publication: Atom-Volkov strong-field approximation for above-threshold ionization
Дата
2019
Авторы
Milosevic, D. B.
Becker, W.
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Аннотация
© 2019 American Physical Society. We introduce an approximation for strong-laser-field-induced ionization of atoms, which we call atom-Volkov strong-field approximation (aV SFA). For the final state, instead of a plane wave (used in the standard well-known SFA) or a Coulomb wave (used in the Coulomb-Volkov SFA), in the aV SFA we use the exact atom-specific scattering states. We first introduce the aV SFA as an ansatz and show that it yields results that are closer to the exact results than those obtained using the SFA. After that, we systematically derive an iterative theory whose zeroth order is equal to the introduced aV SFA. We analyze its first-order correction, which corresponds to electron rescattering off the parent ion and show that, in the case of forward scattering, this correction leads to the low-energy structures in the photoelectron spectra which are observed in the experiments.
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Цитирование
Milosevic, D. B. Atom-Volkov strong-field approximation for above-threshold ionization / Milosevic, D.B., Becker, W. // Physical Review A. - 2019. - 99. - № 4. - 10.1103/PhysRevA.99.043411
URI
https://www.doi.org/10.1103/PhysRevA.99.043411
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https://openrepository.mephi.ru/handle/123456789/16876
https://www.scopus.com/record/display.uri?eid=2-s2.0-85064411494&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000464709900008
https://openrepository.mephi.ru/handle/123456789/16876