Dissertation/Thesis Abstract

Simulating Nonlinear X-ray Spectroscopy: Electron dynamics on ultrashort time and length-scales
by Healion, Daniel M., Ph.D., University of California, Irvine, 2012, 224; 3494322
Abstract (Summary)

Recent ultrabright sources of x-ray radiation will enable nonlinear excitation at x-ray frequencies, allowing molecular valence electron dynamics to be directly observed. Pump-probe, stimulated Raman, and photon echo experiments developed to probe vibrational and optical excitonic systems are adapted to describe the valence reponse to multiple core-excitations. New expressions including rotational averaging and effective core-valence interactions with reduced computational cost are proposed. The time-resolved photoemission spectra provides another measurement channel for observing electronic dynamics. Translating these new high energy time- and frequency-domain techniques to nonlinear experiments represents a substantial theoretical challenge.

Indexing (document details)
Advisor: Mukamel, Shaul
Commitee: Mandelshtam, Vladimir A., Martens, Craig
School: University of California, Irvine
Department: Chemistry - Ph.D.
School Location: United States -- California
Source: DAI-B 73/05, Dissertation Abstracts International
Subjects: Physical chemistry, Molecular physics, Theoretical physics
Keywords: Electron dynamics, Nonlinear spectroscopy, Nonlinear x-ray spectroscopy, Resonant inelastic x-ray spectroscopy, Time-resolved photoemission, Ultrashort time, X-ray absorption near-edge structure
Publication Number: 3494322
ISBN: 978-1-267-15812-3
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