title: Attosecond dynamics of dipole-coupled doubly excited states in helium
creator: Hu, Shuyuan
description: Within this work, electron dynamics in atoms are experimentally and numerically investigated on their natural attosecond time scales. To access these dynamics, ultrashort and moderately intense few-cycle laser pulses are superposed with attosecond pulsed radiation in the extreme-ultraviolet spectral region In particular, a bound two-electron wave packet in helium on attosecond time scales was experimentally observed. A novel experiment is presented to simultaneously measure resonant photoabsorption spectra of laser-coupled doubly excited states in helium and the streaked photoelectron spectra. It provides the advantage of obtaining an absolute calibration of the time-delay zero for absorption spectra, where delay-dependent phase information is extracted.
date: 2024
type: Dissertation
type: info:eu-repo/semantics/doctoralThesis
type: NonPeerReviewed
format: application/pdf
identifier: https://archiv.ub.uni-heidelberg.de/volltextserverhttps://archiv.ub.uni-heidelberg.de/volltextserver/34448/1/PhDThesis_archive.pdf
identifier: DOI:10.11588/heidok.00034448
identifier: urn:nbn:de:bsz:16-heidok-344489
identifier:   Hu, Shuyuan  (2024) Attosecond dynamics of dipole-coupled doubly excited states in helium.  [Dissertation]     
relation: https://archiv.ub.uni-heidelberg.de/volltextserver/34448/
rights: info:eu-repo/semantics/openAccess
rights: Please see front page of the work (Sorry, Dublin Core plugin does not recognise license id)
language: eng