Optical Near-field Electron Microscopy

Experiments on low work function photocathodes

02.12.2021

We are happy to announce that we have started a collaboration with John Smedley, Randall Headrick, Mengjia Gaowei and others at Brook Haven National Laboratories (USA), which will lead to new insights in optimization of low work function photocathodes.

In parallel we have successfully established a pulsed laser deposition system within our LEEM set-up at the University of Leiden. First experiments have been aimed at benchmarking, starting with depositing Si on Si. Next up will be Sb, a basis material for the K-Cs-Sb low work function materials we intend to grow within the ONEM project.