Single-shot measurement of fringe visibility of 13-nm high-order harmonic

Abstract

We demonstrate single-shot measurement of spatial coherence of 13-nm high-order harmonic beam in a Young's double-slit experiment. The visibility of 0.96 was obtained with optimal phase-matching condition for the 13-nm harmonics. To our knowledge, this is the first demonstration of the fringe visibility measurement of the 13-nm harmonic beam with a single shot. This result shows that the 13-nm harmonic beam is useful for applications in imaging and microscopy. © 2007 Springer-Verlag New York.