Materials Interaction with Femtosecond Lasers
Theory and Ultra-Large-Scale Simulations of Thermal and Nonthermal Pheomena
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Beschreibung
This book presents a unified view of the response of materials as a result of femtosecond laser excitation, introducing a general theory that captures both ultrashort-time non-thermal and long-time thermal phenomena. It includes a novel method for performing ultra-large-scale molecular dynamics simulations extending into experimental and technological spatial dimensions with ab-initio precision. For this, it introduces a new class of interatomic potentials, constructed from ab-initio data with the help of a self-learning algorithm, and verified by direct comparison with experiments in two different materials — the semiconductor silicon and the semimetal antimony.
In addition to a detailed description of the new concepts introduced, as well as giving a timely review of ultrafast phenomena, the book provides a rigorous introduction to the field of laser–matter interaction and ab-initio description of solids, delivering a complete and self-contained examination of the topic from the very first principles. It explains, step by step from the basic physical principles, the underlying concepts in quantum mechanics, solid-state physics, thermodynamics, statistical mechanics, and electrodynamics, introducing all necessary mathematical theorems as well as their proofs. A collection of appendices provide the reader with an appropriate review of many fundamental mathematical concepts, as well as important analytical and numerical parameters used in the simulations.This book presents a unified view of the response of materials as a result of femtosecond laser excitation, introducing a general theory that captures both ultrashort-time non-thermal and long-time thermal phenomena. It includes a novel method for performing ultra-large-scale molecular dynamics simulations extending into experimental and technological spatial dimensions with ab-initio precision. For this, it introduces a new class of interatomic potentials, constructed from ab-initio data with the help of a self-learning algorithm, and verified by direct comparison with experiments in two different materials — the semiconductor silicon and the semimetal antimony.
In addition to a detailed description of the new concepts introduced, as well as giving a timely review of ultrafast phenomena, the book provides a rigorous introduction to the field of laser–matter interaction and ab-initio description of solids, delivering a complete and self-contained examination of the topic from thevery first principles. It explains, step by step from the basic physical principles, the underlying concepts in quantum mechanics, solid-state physics, thermodynamics, statistical mechanics, and electrodynamics, introducing all necessary mathematical theorems as well as their proofs. A collection of appendices provide the reader with an appropriate review of many fundamental mathematical concepts, as well as important analytical and numerical parameters used in the simulations.Presents a theory of interaction of femtosecond laser light with materials, benchmarked with experimental data Introduces ultra-large-scale molecular dynamics simulations extending into technological spatial dimensions Written in a fully self-contained style with step-by-step explanations of all underlying physical concepts
Autor*in
Bernd Bauerhenne
Themen in »Materials Interaction with Femtosecond Lasers«
Interaction of Materials with Lasers Intense Laser Fields Electronic Temperature-Dependent Density Functional Theory Interatomic Potentials Ultra-Large-Scale Molecular Dynamics Simulations Femtosecond Laser Excitation Laser-Induced Mechanical Relaxation Electron-Phonon Relaxation Potential Energy Surface Thermal Phonon Squeezing Ultrafast Phenomena in Condensed Matter Ultrafast Melting Ultrafast Phase Transitions