Perspectives on UV and x-ray photoelectron spectroscopy

Atomic photoionization using electron spectroscopy was one of the scientific topics in which Professor David A. Shirley excelled and established a research legacy. We discuss selected highlights of atomic photoionization research done by the Shirley group beginning in the 1970s. Our main topics are electron correlation satellites, photoelectron angular distributions with tunable synchrotron radiation, and developments of theory. We also discuss examples of more recent research that extends the earlier work, including double K-shell photoionization, nondipole interactions, and the pervasive role of interchannel coupling. We conclude with examples of current experimental and theoretical research. Published under an exclusive license by the AVS.

Automated summary

This article presents the significant progress achieved by the Shirley group in the field of atomic photoionization research, including electron correlation satellites, photoelectron angular distributions with tunable synchrotron radiation, and theoretical developments. The article also discusses recent research advancements such as double K-shell photoionization, nondipole interactions, and the pervasive role of interchannel coupling, and provides examples of current experimental and theoretical research.