We develop a first-principles simulation method for attosecond time-resolved photoelectron spectroscopy. This method enables us to directly simulate the whole experimental processes, including excitation, emission and detection on equal footing. To examine the performance of the method, we use it to compute the reconstruction of attosecond beating by interference of two-photon transitions (RABBITT) experiments of gas-phase Argon. The computed RABBITT photoionization delay is in very good agreement with recent experimental results from [Klünder et al., Phys. Rev. Lett. 106, 143002 (2011)] and [Guénot et al., Phys. Rev. A 85, 053424 (2012)]. This indicates the significance of a fully-consistent theoretical treatment of the whole measurement process to properly describe experimental observables in attosecond photoelectron spectroscopy. The present framework opens the path to unravel the microscopic processes underlying RABBITT spectra in more complex materials and nanostructures.

Sato S.A., Hubener H., Rubio A., De Giovannini U. (2018). First-principles simulations for attosecond photoelectron spectroscopy based on time-dependent density functional theory. THE EUROPEAN PHYSICAL JOURNAL. B, CONDENSED MATTER PHYSICS, 91(6) [10.1140/epjb/e2018-90108-7].

First-principles simulations for attosecond photoelectron spectroscopy based on time-dependent density functional theory

De Giovannini U.
2018-01-01

Abstract

We develop a first-principles simulation method for attosecond time-resolved photoelectron spectroscopy. This method enables us to directly simulate the whole experimental processes, including excitation, emission and detection on equal footing. To examine the performance of the method, we use it to compute the reconstruction of attosecond beating by interference of two-photon transitions (RABBITT) experiments of gas-phase Argon. The computed RABBITT photoionization delay is in very good agreement with recent experimental results from [Klünder et al., Phys. Rev. Lett. 106, 143002 (2011)] and [Guénot et al., Phys. Rev. A 85, 053424 (2012)]. This indicates the significance of a fully-consistent theoretical treatment of the whole measurement process to properly describe experimental observables in attosecond photoelectron spectroscopy. The present framework opens the path to unravel the microscopic processes underlying RABBITT spectra in more complex materials and nanostructures.
2018
Sato S.A., Hubener H., Rubio A., De Giovannini U. (2018). First-principles simulations for attosecond photoelectron spectroscopy based on time-dependent density functional theory. THE EUROPEAN PHYSICAL JOURNAL. B, CONDENSED MATTER PHYSICS, 91(6) [10.1140/epjb/e2018-90108-7].
File in questo prodotto:
File Dimensione Formato  
Sato-The European Physical Journal B-2018.pdf

accesso aperto

Descrizione: articolo
Tipologia: Versione Editoriale
Dimensione 838.01 kB
Formato Adobe PDF
838.01 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/543063
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 15
  • ???jsp.display-item.citation.isi??? 15
social impact