Time delay anisotropy in photoelectron emission from isotropic helium

S. Heuser; Jiménez-Gálan; C. Cirelli; M. Sabbar; R. Boge; M. Lucchini; L. Gallmann; I. Ivanov; A. Kheifets; J. M. Dahlström; E. Lindroth; L. Argenti; F. Martín; U. Keller

doi:10.1088/1742-6596/635/9/092089

Time delay anisotropy in photoelectron emission from isotropic helium

S. Heuser
, Jiménez-Gálan
, C. Cirelli
, M. Sabbar
, R. Boge
, M. Lucchini
, L. Gallmann
, I. Ivanov
, A. Kheifets
, J. M. Dahlström
, E. Lindroth
, L. Argenti
, F. Martín
, U. Keller

Research output: Contribution to journal › Conference article › peer-review

2 Citations (Scopus)

Abstract

In contrast to expectations, we observe that the photoionization time delay from the 1s² spherically symmetric ground state of He depend on the electron emission direction with respect to an external reference. We attribute the observed anisotropy to the interplay between different final quantum states, which become accessible once two photons are involved in the photoionization process. This is a universal effect, which needs to be taken into account for any study dealing with photoionization dynamics.

Original language	English
Article number	092089
Journal	Journal of Physics: Conference Series
Volume	635
Issue number	9
DOIs	https://doi.org/10.1088/1742-6596/635/9/092089
Publication status	Published - 7 Sept 2015
Event	29th International Conference on Photonic, Electronic and Atomic Collisions, ICPEAC 2015 - Toledo, Spain Duration: 22 Jul 2015 → 28 Jul 2015

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10.1088/1742-6596/635/9/092089

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Heuser, S., Jiménez-Gálan, Cirelli, C., Sabbar, M., Boge, R., Lucchini, M., Gallmann, L., Ivanov, I., Kheifets, A., Dahlström, J. M., Lindroth, E., Argenti, L., Martín, F., & Keller, U. (2015). Time delay anisotropy in photoelectron emission from isotropic helium. Journal of Physics: Conference Series, 635(9), Article 092089. https://doi.org/10.1088/1742-6596/635/9/092089

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title = "Time delay anisotropy in photoelectron emission from isotropic helium",

abstract = "In contrast to expectations, we observe that the photoionization time delay from the 1s2 spherically symmetric ground state of He depend on the electron emission direction with respect to an external reference. We attribute the observed anisotropy to the interplay between different final quantum states, which become accessible once two photons are involved in the photoionization process. This is a universal effect, which needs to be taken into account for any study dealing with photoionization dynamics.",

author = "S. Heuser and Jim{\'e}nez-G{\'a}lan and C. Cirelli and M. Sabbar and R. Boge and M. Lucchini and L. Gallmann and I. Ivanov and A. Kheifets and Dahlstr{\"o}m, \{J. M.\} and E. Lindroth and L. Argenti and F. Mart{\'i}n and U. Keller",

note = "Publisher Copyright: {\textcopyright} Published under licence by IOP Publishing Ltd.; 29th International Conference on Photonic, Electronic and Atomic Collisions, ICPEAC 2015 ; Conference date: 22-07-2015 Through 28-07-2015",

year = "2015",

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doi = "10.1088/1742-6596/635/9/092089",

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TY - JOUR

T1 - Time delay anisotropy in photoelectron emission from isotropic helium

AU - Heuser, S.

AU - Jiménez-Gálan,

AU - Cirelli, C.

AU - Sabbar, M.

AU - Boge, R.

AU - Lucchini, M.

AU - Gallmann, L.

AU - Ivanov, I.

AU - Kheifets, A.

AU - Dahlström, J. M.

AU - Lindroth, E.

AU - Argenti, L.

AU - Martín, F.

AU - Keller, U.

PY - 2015/9/7

Y1 - 2015/9/7

N2 - In contrast to expectations, we observe that the photoionization time delay from the 1s2 spherically symmetric ground state of He depend on the electron emission direction with respect to an external reference. We attribute the observed anisotropy to the interplay between different final quantum states, which become accessible once two photons are involved in the photoionization process. This is a universal effect, which needs to be taken into account for any study dealing with photoionization dynamics.

AB - In contrast to expectations, we observe that the photoionization time delay from the 1s2 spherically symmetric ground state of He depend on the electron emission direction with respect to an external reference. We attribute the observed anisotropy to the interplay between different final quantum states, which become accessible once two photons are involved in the photoionization process. This is a universal effect, which needs to be taken into account for any study dealing with photoionization dynamics.

UR - https://www.scopus.com/pages/publications/84949293305

U2 - 10.1088/1742-6596/635/9/092089

DO - 10.1088/1742-6596/635/9/092089

M3 - Conference article

SN - 1742-6588

VL - 635

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

IS - 9

M1 - 092089

T2 - 29th International Conference on Photonic, Electronic and Atomic Collisions, ICPEAC 2015

Y2 - 22 July 2015 through 28 July 2015

ER -

Time delay anisotropy in photoelectron emission from isotropic helium

Abstract

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