Flexible XUV source at high repetition rate with multiple output mode selection: photon energy, temporal resolution, spectral resolution

Abstract

Yb-based laser amplifiers opened the way to use high average power with high repetition rate laser systems to drive XUV sources by HHG process. The applications often require switching between photon energy region, or to change the spectral resolution, and the temporal resolution. We report the development of a flexible XUV source, with two photon energy regions outputs, low photon energy (20 – 36 eV) and high photon energy (30 – 200 eV). The low photon energy output can be used in high temporal resolution (< 30fs) or high spectral resolution mode (< 50 meV). The high photon energy output can be switch between two spectral regions, 30-70 eV or 70-200 eV.