Angular distributions in two-colour two-photon ionization of He

Hector F. Rey; Hugo van der Hart

doi:10.1088/0953-4075/22/225601

Angular distributions in two-colour two-photon ionization of He

Hector F. Rey, Hugo van der Hart

School of Mathematics and Physics

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Abstract

We present R-Matrix with time dependence (RMT) calculations for the photoionization of helium irradiated by an EUV laser pulse and an overlapping IR pulse with an emphasis on the anisotropy parameters of the sidebands generated by the dressing laser field. We investigate how these parameters depend on the amount of atomic structure included in the theoretical model for two-photon ionization. To verify the accuracy of the RMT approach, our theoretical results are compared with experiment.

Original language	English
Article number	225601
Number of pages	9
Journal	Journal of Physics B: Atomic, Molecular and Optical Physics
Volume	47
Issue number	22
Early online date	07 Nov 2014
DOIs	https://doi.org/10.1088/0953-4075/22/225601
Publication status	Published - 28 Nov 2014

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10.1088/0953-4075/22/225601

Angular distributions in two-colour two-photon ionization of He
This is an author-created, un-copyedited version of an article accepted for publication/published in Journal of Physics B: Atomic, Molecular and Optical Physics. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at doi:10.1088/0953-4075/47/22/225601
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abstract = "We present R-Matrix with time dependence (RMT) calculations for the photoionization of helium irradiated by an EUV laser pulse and an overlapping IR pulse with an emphasis on the anisotropy parameters of the sidebands generated by the dressing laser field. We investigate how these parameters depend on the amount of atomic structure included in the theoretical model for two-photon ionization. To verify the accuracy of the RMT approach, our theoretical results are compared with experiment.",

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AU - van der Hart, Hugo

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AB - We present R-Matrix with time dependence (RMT) calculations for the photoionization of helium irradiated by an EUV laser pulse and an overlapping IR pulse with an emphasis on the anisotropy parameters of the sidebands generated by the dressing laser field. We investigate how these parameters depend on the amount of atomic structure included in the theoretical model for two-photon ionization. To verify the accuracy of the RMT approach, our theoretical results are compared with experiment.

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JF - Journal of Physics B: Atomic, Molecular and Optical Physics

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Angular distributions in two-colour two-photon ionization of He

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