Ultrafast Photoexcitation of Semiconducting Photocathode Materials

Hilde Bellersen, Michele Guerrini, Caterina Cocchi

Cs-based semiconductors like $\mathrm{C}{\mathrm{s}}_3\mathrm{Sb}$ and $\mathrm{C}{\mathrm{s}}_2\mathrm{Te}$ are currently used as photocathodes in particle accelerators. Their performance as electron sources critically…