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Imaging Light with Photoelectrons on the Nano-Femto Scale

  • Book
  • © 2020

Overview

Authors:
  1. Yanan Dai

    1. Graduate School of Arts and Sciences, Columbia University, New York, USA

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  • Nominated as an outstanding PhD thesis by the University of Pittsburgh
  • Includes an accessible introduction to fundamental plasmon models and techniques for imaging plasmon-related phenomena
  • Reports development of new ultrafast microscopy methods and analytical theory of topological quasiparticles

Part of the book series: Springer Theses (Springer Theses)

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Table of contents (7 chapters)

  1. Front Matter

    Pages i-xv
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  2. Introduction

    • Yanan Dai
    Pages 1-16

  3. Experimental Methods

    • Yanan Dai
    Pages 17-28

  4. Simulation Framework

    • Yanan Dai
    Pages 29-38

  5. Propagating Surface Plasmon Polaritons (SPPs)

    • Yanan Dai
    Pages 39-49

  6. Spin Angular Momenta and Chirality of SPPs

    • Yanan Dai
    Pages 51-77

  7. Plasmon Orbital Angular Momentum Generation

    • Yanan Dai
    Pages 79-95

  8. Summary and Perspectives

    • Yanan Dai
    Pages 97-97

  9. Back Matter

    Pages 99-115
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Keywords

About this book

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.

Authors and Affiliations

  • Graduate School of Arts and Sciences, Columbia University, New York, USA

    Yanan Dai

About the author

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

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