From N2 (337 nm) to high-order harmonic generation: 40years of coherent source development in the UV and VUV

摘要

An abbreviated history of the development of several selectedncoherent sources (primary and nonlinear) in the 100-100-nm spectralnregion over the past four decades is presented. In this comparativelynbrief span of time, peak output powers in the UV have risen by more thanneight orders of magnitude, and photons from the near-UV to the thresholdnof the soft X-ray region are now generated routinely at kilohertznrepetition frequencies. A few of the milestones and individuals whoncontributed to this period of enormous progress are discussed