Researchers observe femtosecond decay of xenon inner-shell hole using light-pulse pairs

Researchers at the UVSOR Synchrotron Facility in Japan and collaborators have directly observed the femtosecond decay of a xenon 4d core hole using pairs of phase-coherent extreme ultraviolet pulses. The interference pattern of photoelectron wave packets revealed a rapid decay consistent with a core-hole lifetime of about 6 femtoseconds. This study provides direct time-domain insight into inner-shell vacancy dynamics and is published in Physical Review A.

Originally published by gnews