eprintid: 34448
rev_number: 15
eprint_status: archive
userid: 7938
dir: disk0/00/03/44/48
datestamp: 2024-02-14 13:57:50
lastmod: 2024-02-14 14:58:35
status_changed: 2024-02-14 13:57:50
type: doctoralThesis
metadata_visibility: show
creators_name: Hu, Shuyuan
title: Attosecond dynamics of dipole-coupled doubly excited states in helium
divisions: i-130001
adv_faculty: af-13
cterms_swd: attosecond physics
cterms_swd: attosecond streaking
cterms_swd: time-resolved spectroscopy
abstract: 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
id_scheme: DOI
id_number: 10.11588/heidok.00034448
ppn_swb: 1880764660
own_urn: urn:nbn:de:bsz:16-heidok-344489
date_accepted: 2023-12-13
advisor: HASH(0x561a5d59c568)
language: eng
bibsort: HUSHUYUANATTOSECOND
full_text_status: public
place_of_pub: Heidelberg
citation:   Hu, Shuyuan  (2024) Attosecond dynamics of dipole-coupled doubly excited states in helium.  [Dissertation]     
document_url: https://archiv.ub.uni-heidelberg.de/volltextserver/34448/1/PhDThesis_archive.pdf