Related Experiment Video
Updated: Aug 21, 2026

Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures
Published on: October 9, 2012
Excited states mapped by secondary photoemission
M Bovet1, V N Strocov, F Clerc
1Institut de Physique, Université de Neuchâtel, CH-2000 Neuchâtel, Switzerland.
Abstract:
We report on angle-resolved photoemission (ARPES) experiments on Cu(110) using Mg K(alpha) radiation. The secondary emission (SE) fine structure of electrons below 50 eV is found to map the empty band structure relevant for absolute band mapping in ARPES. The finding is based on a direct comparison of our experiments with very low-energy electron diffraction data [Phys. Rev. Lett. 81, 4943 (1998)]] recently shown to map the unoccupied states representing the photoemission final-state. This suggests a new theoretical approach to the SE process treating the outgoing electron state as the time-reversed diffraction state.
Related Concept Videos
Molecular Spectroscopy: Absorption and Emission
Deactivation Processes: Jablonski Diagram
Atomic Nuclei: Nuclear Relaxation Processes
UV–Vis Spectroscopy: Molecular Electronic Transitions
Scanning Electron Microscopy
Fundamental Principles
Accelerated...
Atomic Nuclei: Nuclear Spin State Overview

