Time-resolving and energy-dispersive photoelectron detector for combined laser and synchrotron radiation experiments

A time-resolving and energy-dispersive photoelectron detector for time-resolved experiments has been set up for pump-multiple-probe experiments with combined laser and synchrotron radiation. The time resolution of the detector of about 1 ns allows an assignment of the photoelectron signal to a specific synchrotron radiation pulse for any filling pattern of third-generation synchrotron storage rings. This leads to an overall temporal resolution given by the synchrotron radiation pulse width, which is 30 ps at the synchrotron radiation facility BESSY, Berlin. Application of the pump-multiple-probe technique is demonstrated for time-resolved photoemission experiments with combined laser and synchrotron radiation