6533b827fe1ef96bd1287240
RESEARCH PRODUCT
First-principles simulations for attosecond photoelectron spectroscopy based on time-dependent density functional theory
Angel RubioAngel RubioShunsuke A. SatoHannes HübenerUmberto De Giovanninisubject
PhysicsSolid-state physicsAtomic Physics (physics.atom-ph)AttosecondFOS: Physical sciencesObservable02 engineering and technologyPhotoionizationTime-dependent density functional theory021001 nanoscience & nanotechnologyCondensed Matter Physics01 natural sciencesSettore FIS/03 - Fisica Della MateriaSpectral linePhysics - Atomic PhysicsElectronic Optical and Magnetic MaterialsX-ray photoelectron spectroscopyRABBIT0103 physical sciencesPhysics::Atomic and Molecular ClustersAtomic physics010306 general physics0210 nano-technologyExcitationdescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-02-23 | The European Physical Journal B |