An intense continuously tunable 20-fs source is demonstrated for the region between 370 and 430nm with pulse energies of as much as 20 μJ. By use of high-power frequency-doubled pulses from a 32-fs 1-kHz Ti:sapphire laser system a blue continuum is produced in an Ar-filled hollow fiber. After compression with dispersive delay lines the resulting pulses are analyzed by use of the self-diffraction frequency-resolved optical gating technique.
© 1997 Optical Society of America
E. T. J. Nibbering, O. Dühr, and G. Korn, "Generation of intense tunable 20-fs pulses near 400nm by use of a gas-filled hollow waveguide," Opt. Lett. 22, 1335-1337 (1997)