Ultra-fast spectroscopy is an ideal tool for investigating fast dynamical processes with high spatial resolution. We work on several aspects of this highly useful diagnostic technique. To increase the spectral resolution at EUV and XUV wavelengths, we are developing Borrmann filters using multilayer optics. We are also developing a high-harmonic light source to generate a tunable spectrum in the EUV that can be used for studying fast dynamical processes with high spatial resolution as well as for seeding free-electron lasers. Finally we apply spectroscopic techniques to study the evolution of the plasma produced in pulsed laser deposition with high spatial and temporal resolution and chemical selectivity.