The pump-probe workstation consists of a 15 cm computer-controlled delay line, with a minimum step of 0.1 μm, and a 303 mm spectrograph with a CCD imaging camera, and a lock-in amplifier. The pump beam can be selected to be either the fundamental output of a Ti:Sapphire laser amplifier at 785 nm, or te frequency doubled second harmonic, or the output of a home-built noncollinear Optical Parametric Amplifier (NOPA) at 420 nm - 750 nm.