Abstract

We investigate the dependence of Cherenkov radiation (CR) on pump pulse parameters and its evolution along the propagation distance. Using a Ti:sapphire laser emitting 10fs pulses as the pump source, we demonstrate highly efficient (>40%), broadband (>50nm) CR in the visible-wavelength range with a threshold energy less than 100pJ and a tuning range over 100nm.

© 2010 Optical Society of America

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