New developments in laser-based photoemission spectroscopy and its scientific applications: a key issues review

• Published in: Reports on progress in physics Vol. 81; no. 6; pp. 62101 - 62128
• Main Authors: Zhou, Xingjiang, He, Shaolong, Liu, Guodong, Zhao, Lin, Yu, Li, Zhang, Wentao
• Format: Journal Article
• Language: English
• Published: England IOP Publishing 01.06.2018
• Subjects: laser; photoemisison; superconductivity; topological insulator
• ISSN: 0034-4885; 1361-6633; 1361-6633
• DOI: 10.1088/1361-6633/aab0cc

The significant progress in angle-resolved photoemission spectroscopy (ARPES) in last three decades has elevated it from a traditional band mapping tool to a precise probe of many-body interactions and dynamics of quasiparticles in complex quantum systems. The recent developments of deep ultraviolet (DUV, including ultraviolet and vacuum ultraviolet) laser-based ARPES have further pushed this technique to a new level. In this paper, we review some latest developments in DUV laser-based photoemission systems, including the super-high energy and momentum resolution ARPES, the spin-resolved ARPES, the time-of-flight ARPES, and the time-resolved ARPES. We also highlight some scientific applications in the study of electronic structure in unconventional superconductors and topological materials using these state-of-the-art DUV laser-based ARPES. Finally we provide our perspectives on the future directions in the development of laser-based photoemission systems.