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ISBN 9783843947008

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978-3-8439-4700-8, Reihe Physik

Sergej Krylow
Theoretical study of solid-state materials after ultrafast laser-excitations

166 Seiten, Dissertation Universität Kassel (2020), Hardcover, A5

Zusammenfassung / Abstract

An ultrafast laser pulse can induce dynamics, which would be otherwise not possible in the ground state. The detailed dynamics are generally a complex interplay between different effects. Such effects are, for example, the generation of coherent phonons, phonon squeezing, non-thermal melting or phase transitions. The timescales of these effects are strongly dependent on the properties of the material and can range from a few fs to several ps. Although experiments can yield valuable information on the ultrafast dynamics of materials, a detailed analysis is often only possible theoretically. In this work ab initio simulations are used to analyze the response of materials to an ultrafast laser pulse.