Sr. Greenfield et Mr. Wasielewski, OPTICAL PARAMETRIC AMPLIFICATION OF FEMTOSECOND PULSES TUNABLE FROM THE BLUE TO THE INFRARED WITH MICROJOULE ENERGIES, Applied optics, 34(15), 1995, pp. 2688-2691
A white-light continuum is used to seed a two-stage optical parametric
amplifier pumped by the second harmonic of a regeneratively amplified
Ti:sapphire laser system operating at 824 nm. Microjoule energies are
achieved in the signal branch, which is tunable from 472 to 785 nm. N
ear-transform-limited sub-200-fs pulses are attainable over the vast m
ajority of the tuning range.