This talk will investigate stories and science behind x-ray free electron lasers (FELs), the world’s brightest x-ray sources. The pioneering example is SLAC National Laboratory's LCLS, with which the Photocathode Group at the University of Maryland have an ongoing collaboration. In focus will be the surfaces where the beams are born: photocathodes. Such laser-driven electron sources for FELs have advanced since Einstein’s 1921 Nobel for the photoelectric effect, but significant challenges remain due to the harsh vacuum environment of an accelerator and the demanding beam quality requirements of an x-ray FEL. Efforts underway at the University of Maryland are developing self-healing photocathodes and optical methods of probing their properties.
This seminar is sponsored by Stanford OSA
Dr. Eric Montgomery (Ph.D. Physics, University of Maryland College Park, 2010) leads the Laboratory for Photocathode Research at the University of Maryland’s Institute for Research in Electronics and Applied Physics (IREAP), where he directs a team that designs, fabricates, and tests novel photoelectric sources for accelerators and free electron lasers. He has a decade of scientific research experience in the optical drive and surface physics of photocathodes and has published over 20 peer reviewed papers and proceedings. Dr. Montgomery also serves an active role as a scientific consultant for several businesses and holds a U.S. patent on self-healing photoemitters.