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In-Situ Observation of the Formation of Laser-Induced Periodic Surface Structures with Extreme Spatial and Temporal Resolution

Authors :
Klaus Sokolowski-Tinten
Jörn Bonse
Anton Barty
Henry N. Chapman
Saša Bajt
Mike J. Bogan
Sebastien Boutet
Andrea Cavalleri
Stefan Düsterer
Matthias Frank
Janos Hajdu
Stefan Hau-Riege
Stefano Marchesini
Nikola Stojanovic
Rolf Treusch
Source :
Ultrafast Laser Nanostructuring (Springer Series in Optical Sciences 239), Springer Series in Optical Sciences ISBN: 9783031147517
Publication Year :
2023

Abstract

Irradiation of solid surfaces with intense ultrashort laser pulses represents a unique way of depositing energy into materials. It allows to realize states of extreme electronic excitation and/or very high temperature and pressure and to drive materials close to and beyond fundamental stability limits. As a consequence, structural changes and phase transitions often occur along unusual pathways and under strongly nonequilibrium conditions. Due to the inherent multiscale nature—both temporally and spatially—of these irreversible processes, their direct experimental observation requires techniques that combine high temporal resolution with the appropriate spatial resolution and the capability to obtain good quality data on a single pulse/event basis. In this respect, fourth-generation light sources, namely, short wavelength and short pulse free electron lasers (FELs), are offering new and fascinating possibilities. As an example, this chapter will discuss the results of scattering experiments carried out at the FLASH free electron laser at DESY (Hamburg, Germany), which allowed us to resolve laser-induced structure formation at surfaces on the nanometer to submicron length scale and in temporal regimes ranging from picoseconds to several nanoseconds with sub-picosecond resolution.

Subjects

Subjects :
Physik (inkl. Astronomie)

Details

Language :
English
ISBN :
978-3-031-14751-7
ISBNs :
9783031147517
Database :
OpenAIRE
Journal :
Ultrafast Laser Nanostructuring (Springer Series in Optical Sciences 239), Springer Series in Optical Sciences ISBN: 9783031147517
Accession number :
edsair.doi.dedup.....42c0884dc93a01079c063cd022501e3e