Resolving Strong Field Dynamics in Cation States of CO_2 via Optimised Molecular Alignment

Beschreibung

This thesis presents an experimental study of the ultrafast molecular dynamics of CO_2^+ that are induced by a strong, near-infrared, femtosecond laser pulse. In particular, typical strong field phenomena such as tunneling ionisation, nonsequential double ionisation and photo-induced dissociation are investigated and controlled by employing an experimental technique called impulsive molecular alignment. Here, a first laser pulse fixes the molecule in space, such that the molecular dynamics can be studied as a function of the molecular geometry with a second laser pulse.The experiments are placed within the context of the study and control of ultrafast molecular dynamics, where sub-femtosecond (10^-15 seconds) resolution in ever larger molecular systems represents the current frontier of research. The thesis presents the required background in strong field and molecular physics, femtosecond laser architecture and experimental techniques in a clear and accessible language that does not require any previous knowledge in these fields.
This thesis presents an experimental study of the ultrafast molecular dynamics of CO_2^+ that are induced by a strong, near-infrared, femtosecond laser pulse. In particular, typical strong field phenomena such as tunneling ionisation, nonsequential double ionisation and photo-induced dissociation are investigated and controlled by employing an experimental technique called impulsive molecular alignment. Here, a first laser pulse fixes the molecule in space, such that the molecular dynamics can be studied as a function of the molecular geometry with a second laser pulse. The experiments are placed within the context of the study and control of ultrafast molecular dynamics, where sub-femtosecond (10^-15 seconds) resolution in ever larger molecular systems represents the current frontier of research. The thesis presents the required background in strong field and molecular physics, femtosecond laser architecture and experimental techniques in a clear and accessible language that does not require any previous knowledge in these fields.
Nominated a prize winning thesis by Imperial College, London Provides and accessible and extensive introduction to strong field molecular physics Presents a simple but powerful technique for studying the angular dependence of strong field processes, especially those resulting in zero kinetic energy release fragments Discusses for the first time multi-cation channel contributions to non-sequential double ionization Includes supplementary material: sn.pub/extras

Autor*in

Malte Oppermann

Themen in »Resolving Strong Field Dynamics in Cation States of CO_2 via Optimised Molecular Alignment«

Electron Recollision Femtosecond Laser Architecture Molecular Dissociation Nonsequential Double Ionisation Strong Field Physics Tunelling Ionisation Ultrafast Molecular Dynamics Ultrafast Optics Ultrafast dynamics of CO_2 and CO_2^+

Stimmen zu »Resolving Strong Field Dynamics in Cation States of CO_2 via Optimised Molecular Alignment«

Details

Link teilen