Ultrafast Angle-Resolved Photoemission Spectroscopy of Quantum Materials

TL;DR

This paper reviews recent advances in ultrafast angle-resolved photoemission spectroscopy, highlighting its role in studying nonequilibrium electron dynamics, electron-collective interactions, dressed states, and unoccupied band structures in quantum materials.

Contribution

It provides a comprehensive overview of recent methodological developments and applications of ultrafast ARPES in quantum materials research.

Findings

Enhanced understanding of electron dynamics in quantum materials

Insights into electron-collective excitation interactions

Identification of unoccupied band structures

Abstract

Techniques in time- and angle-resolved photoemission spectroscopy have facilitated a number of recent advances in the study of quantum materials. We review developments in this field related to the study of incoherent nonequilibrium electron dynamics, the analysis of interactions between electrons and collective excitations, the exploration of dressed-state physics, and the illumination of unoccupied band structure. Future prospects are also discussed.