title: Strong-Field Spectroscopy: From Absorption to Time-Resolved Dynamics in Strong Fields
creator: Stooß, Veit Walter
subject: ddc-530
subject: 530 Physics
description: 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
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/25116/1/Dissertation_VeitStooss_PrintVersion.pdf
identifier: DOI:10.11588/heidok.00025116
identifier: urn:nbn:de:bsz:16-heidok-251168
identifier:   Stooß, Veit Walter  (2018) Strong-Field Spectroscopy: From Absorption to Time-Resolved Dynamics in Strong Fields.  [Dissertation]     
relation: https://archiv.ub.uni-heidelberg.de/volltextserver/25116/
rights: info:eu-repo/semantics/openAccess
rights: http://archiv.ub.uni-heidelberg.de/volltextserver/help/license_urhg.html
language: eng