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Time-resolved Spectroscopy at Surfaces and Adsorbate Dynamics: Insights from a Model-system Approach by Boström, Emil; Mikkelsen, Anders; Verdozzi, Claudio is a scholarly article available to read on EtoBox.

What is Time-resolved Spectroscopy at Surfaces and Adsorbate Dynamics: Insights from a Model-system Approach about?

We introduce a model description of femtosecond laser induced desorption at surfaces. The substrate part of the system is taken into account as a (possibly semi-infinite) linear chain. Here, being especially interested in the early stages of dissociation, we consider a finite-size implementation of the model (i.e., a finite substrate), for which an exact numerical solution is possible. By time-evolving the many-body wave function, and also using results from a time-dependent density functional theory description for electron-nuclear systems, we analyze the competition between several surface-response mechanisms and electronic correlations in the transient and longer time dynamics under the influence of dipole-coupled fields. Our model allows us to explore how coherent multiple-pulse protocols can impact desorption in a variety of prototypical experiments.

Author

Boström, Emil; Mikkelsen, Anders; Verdozzi, Claudio

Published

2015

Language

EN