title: Highly efficient Cherenkov radiation in photonic crystal fibers for broadband visible wavelength generation.
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 10 fs pulses as the pump source, we demonstrate highly efficient (>40%), broadband (>50 nm) CR in the visible-wavelength range with a threshold energy less than 100 pJ and a tuning range over 100 nm.
authors.affiliation: Department of Electrical Engineering and Computer Science and Research Laboratory of Electronics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA. guoqing@mit.edu
authors.forename: Guoqing
authors.initials: G
authors.lastname: Chang
authors.forename: Li-Jin
authors.initials: LJ
authors.lastname: Chen
authors.forename: Franz X
authors.initials: FX
authors.lastname: Kärtner