eprintid: 25116 rev_number: 17 eprint_status: archive userid: 1634 dir: disk0/00/02/51/16 datestamp: 2018-07-26 13:13:22 lastmod: 2018-08-31 09:42:21 status_changed: 2018-07-26 13:13:22 type: doctoralThesis metadata_visibility: show creators_name: Stooß, Veit Walter title: Strong-Field Spectroscopy: From Absorption to Time-Resolved Dynamics in Strong Fields subjects: ddc-530 divisions: i-130001 divisions: i-851340 adv_faculty: af-13 abstract: The goal of this work is to study and understand dynamics of atomic systems interacting with strong fields. To this end, a method referred to as strong-field spectroscopy is used, which measures the absorption spectrum of atoms interacting with such fields. In the scope of this work, a technique which allows the simultaneous measurement of absorption spectra of attosecond pulses and their reference signal is developed, which significantly increases the sensitivity to absorption changes. Additionally, a reconstruction method is introduced which retrieves the time-dependent evolution of the dipole response of an atomic system directly from a single absorption spectrum. Strong-field spectroscopy combines these techniques to examine the nonlinear strong-field dynamics in atomic and molecular systems and is applied to study the strongly correlated doubly excited states in helium. Furthermore, a measurement approach is introduced which uses the interaction with a high-intensity laser pulse to impose a time gate on the evolution of the coherent response of a system, which has previously been excited by an ultrashort laser pulse. With this approach the buildup of resonance phenomena in a wide range of physical systems can be studied. As a first application, the time-dependent buildup of a Fano resonance as well as the buildup of a whole Rydberg series are investigated. date: 2018 id_scheme: DOI id_number: 10.11588/heidok.00025116 ppn_swb: 1655391488 own_urn: urn:nbn:de:bsz:16-heidok-251168 date_accepted: 2018-07-11 advisor: HASH(0x55e0f7deb868) language: eng bibsort: STOOSSVEITSTRONGFIEL2018 full_text_status: public citation: Stooß, Veit Walter (2018) Strong-Field Spectroscopy: From Absorption to Time-Resolved Dynamics in Strong Fields. [Dissertation] document_url: https://archiv.ub.uni-heidelberg.de/volltextserver/25116/1/Dissertation_VeitStooss_PrintVersion.pdf