Time-Resolved Soft X-Ray Absorption Spectroscopy of Molecules in the Gas and Liquid Phases

by Cïdric Schmidt

Overview

This work studies the relaxation dynamics of molecules in both the gas and liquid phases after strong field ionization, using transient absorption in the soft X-rays. In particular, the thesis presents the first realization of time-resolved X-ray absorption spectroscopy in the spectral water window with a laser-based HHG source. These remarkable experiments were not only performed for isolated molecules, but also in liquids, for which the spectral coverage of the K-edges of C, N, and O are of primary importance for investigating biological molecules. The technique relies on the generation of high-order harmonics to further probe the electronic structure of molecules. Using the atomic selectivity of high energies and the temporal coherence of laser technology, we demonstrate the observation of the first stages of chemical transformation of matter in the gas and liquid phases.

Product Details

ISBN-13:	9783030678371
Publisher:	Springer International Publishing
Publication date:	02/15/2021
Series:	Springer Theses
Edition description:	1st ed. 2021
Pages:	119
Product dimensions:	6.10(w) x 9.25(h) x (d)

Table of Contents

Introduction.- Theoretical Background.- Method and Setup Description.- Time-resolved XAS of Gas Dissociations.- Pulse Peak Power Optimiza@on With Filamentation.