• D.A. Reis
  Michigan University, Ann Arbor, Michigan

We present recent results from the Sub-picosecond Pulse Source (SPPS) which produces hard x-ray pulses as short as 80fs in duration from the compressed ultrarelativistic electron beam at SLAC. Using these pulses, we have performed single-shot experiments on the dynamics of laser-induced ultrafast disordering in semiconductors with unprecedented temporal resolution. However, for repetitive pump-probe experiments, timing jitter between the laser pump and the x-ray probe can lead to severely reduced temporal resolution. To overcome this problem, we measure the relative timing on a shot-by-shot base using spatially resolved electro-optic sampling of the electron beam.