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Photoionization Time Delays
Stockholm University, Faculty of Science, Department of Physics. Max-Planck Institute for the Physics of Complex Systems, Germany.
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Number of Authors: 5
2016 (English)In: Ultrafast Dynamics Driven by Intense Light Pulses: From Atoms to Solids, from Lasers to Intense X-rays / [ed] Markus Kitzler, Stefanie Gräfe, Springer, 2016, Vol. 86, 177-202 p.Chapter in book (Refereed)
Abstract [en]

The material presented in this chapter is based on important advances realized in attophysics which make feasible to follow the motion of electrons in atoms and molecules with attosecond-level time resolution. In this context, time-delays have been recently determined in the process of photoionization by extreme-ultra- violet (XUV) pulses and the question of the significance of these measured delays arises. As we shall outline here, numerical experiments show that they are intimately related to the structure of the ionized species' continuous spectrum. Another point addressed here is that, in experiments, the measurements have the common characteristic to be performed in the presence of an auxiliary infra-red (IR) field, used to clock the timing of the process. This implies to adapt the theory treatment to handle such two-color photoionization processes. We review a systematic analysis of these features that are characteristic of this class of electronic transitions, when viewed in the time domain.

Place, publisher, year, edition, pages
Springer, 2016. Vol. 86, 177-202 p.
, Springer Series on Atomic, Optical, and Plasma Physics, ISSN 1615-5653 ; 86
National Category
Physical Sciences
URN: urn:nbn:se:su:diva-132616DOI: 10.1007/978-3-319-20173-3_8ISI: 000376972300009ISBN: 978-3-319-20172-6ISBN: 978-3-319-20173-3OAI: diva2:954778
Available from: 2016-08-23 Created: 2016-08-17 Last updated: 2016-08-23Bibliographically approved

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Dahlström, J. Marcus
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