Equivalence of RABBITT and Streaking Delays in Attosecond-Time-Resolved Photoemission Spectroscopy at Solid Surfaces
| Autor: | Gebauer, Andreas, Neb, Sergej, Enns, Walter, Stadtmüller, Benjamin, Aeschlimann, Martin, Pfeiffer, Walter |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
attosecond
lcsh:T photoelectron spectroscopy time-resolved photoemission RABBITT photoemission delay lcsh:Technology lcsh:QC1-999 chronoscopy lcsh:Chemistry photoeffect lcsh:Biology (General) lcsh:QD1-999 lcsh:TA1-2040 Physics::Atomic and Molecular Clusters streaking Physics::Atomic Physics lcsh:Engineering (General). Civil engineering (General) lcsh:QH301-705.5 photoemission lcsh:Physics photoelectron |
| Zdroj: | Applied Sciences, Vol 9, Iss 3, p 592 (2019) Applied Sciences Volume 9 Issue 3 |
| ISSN: | 2076-3417 |
| Popis: | The dynamics of the photoelectric effect in solid-state systems can be investigated via attosecond-time-resolved photoelectron spectroscopy. This article provides a comparison of delay information accessible by the two most important techniques, attosecond streaking spectroscopy and reconstruction of attosecond beating by interference of two-photon transitions (RABBITT) at solid surfaces, respectively. The analysis is based on simulated time-resolved photoemission spectra obtained by solving the time-dependent Schrö dinger equation in a single-active-electron approximation. We show a continuous transition from the few-cycle RABBITT regime to the streaking regime as two special cases of laser-assisted photoemission. The absolute delay times obtained by both methods agree with each other, within the uncertainty limits for kinetic energies > 10 eV. Moreover, for kinetic energies > 10 eV, both streaking delay time and RABBITT delay time coincide with the classical time of flight for an electron propagating from the emitter atom to the bulk-vacuum interface, with only small deviations of less than 4 as due to quantum mechanical interference effects. |
| Databáze: | OpenAIRE |
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