Photoionization time delays

Abstract : 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-ultraviolet (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.
Type de document :
Chapitre d'ouvrage
Markus Kitzler; Stefanie Gräfe. Ultrafast Dynamics Driven by Intense Light Pulses, Springer, 2016, 978-3-319-20172-6
Liste complète des métadonnées

Littérature citée [63 références]  Voir  Masquer  Télécharger

https://hal-ensta.archives-ouvertes.fr/hal-01164799
Contributeur : Stefan Haessler <>
Soumis le : mercredi 17 juin 2015 - 18:20:03
Dernière modification le : samedi 22 septembre 2018 - 08:36:01
Document(s) archivé(s) le : mardi 25 avril 2017 - 11:16:45

Fichier

Chapter_Haessler-and-friends.p...
Fichiers produits par l'(les) auteur(s)

Identifiants

  • HAL Id : hal-01164799, version 1

Citation

J M Dahlström, Morgane Vacher, Alfred Maquet, Jérémie Caillat, Stefan Haessler. Photoionization time delays. Markus Kitzler; Stefanie Gräfe. Ultrafast Dynamics Driven by Intense Light Pulses, Springer, 2016, 978-3-319-20172-6. 〈hal-01164799〉

Partager

Métriques

Consultations de la notice

336

Téléchargements de fichiers

450