Imaging Light with Photoelectrons on the Nano-Femto Scale

1. Auflage 2020
ISBN: 978-3-030-52838-6
Verlag: Springer International Publishing

Buch, Englisch, 115 Seiten, Format (B × H): 155 mm x 235 mm, Gewicht: 213 g

Reihe: Springer Theses

This thesis presents significant advances in the imaging and theory of the ultrafast dynamics of surface plasmon polariton fields. The author details construction of a sub-10 femtosecond and sub-10 nanometer spatiotemporal resolution ultrafast photoemission microscope which is subsequently used for the discovery of topological meron and skyrmion-like plasmonic quasiparticles. In particular, this enabled the creation of movies of the surface plasmon polariton fields evolving on sub-optical wavelength scales at around 0.1 femtosecond per image frame undergoing vortex phase evolution. The key insight that the transverse spin of surface plasmon polaritons undergoes a texturing into meron or skyrmion-like topological quasiparticles (defined by the geometric charge of the preparation) follows. In addition, this thesis develops an analytical theory of these new topological quasiparticles, opening new avenues of research, while the ultrafast microscopy techniques established within will also be broadly applicable to studies of nanoscale optical excitations in electronic materials.

Zielgruppe

Research

Autoren/Hrsg.

Dai, Yanan

Fachgebiete

• Naturwissenschaften Physik Elektromagnetismus Mikroskopie, Spektroskopie
• Technische Wissenschaften Maschinenbau | Werkstoffkunde Technische Mechanik | Werkstoffkunde Materialwissenschaft: Elektronik, Optik
• Technische Wissenschaften Technik Allgemein Technische Optik, Lasertechnologie
• Naturwissenschaften Chemie Physikalische Chemie Quantenchemie, Theoretische Chemie
• Naturwissenschaften Chemie Analytische Chemie Magnetresonanz
• Naturwissenschaften Physik Elektromagnetismus Quantenoptik, Nichtlineare Optik, Laserphysik

Inhaltsverzeichnis

Chapter1: Introduction.- Chapter2: Experimental Methods.- Chapter3: Simulation Framework.- Chapter4: Propagating Surface Plasmon Polaritons (SPPs).- Chapter5: Spin Angular Momenta and Chirality of SPPs.- Chapter6: Plasmon Orbital Angular Momentum Generation.- Chapter7: Summary and Perspectives.

Über Autor(innen)

Yanan Dai is a postdoctoral researcher at Columbia University. He received his PhD from the University of Pittsburgh in 2019.