title: Ultrabroad supercontinuum generation by femtosecond dual-wavelength pumping in sapphire.
abstract: We study supercontinuum (SC) generation in sapphire pumped by two femtosecond lasers with dual wavelengths of 800 nm and 1054 nm. In comparison with the case pumped by single-wavelength pulses, the conversion efficiencies in the visible and infrared regions are enhanced by almost an order of magnitude, and the SC spectrum can be much flatter with dual-wavelength pulses pumping. The ultrabroad SC spanning from 350 nm to 1600 nm is obtained experimentally, which covers an octave of the pumping wavelengths.
authors.forename: Ke
authors.initials: K
authors.lastname: Wang
authors.forename: Liejia
authors.initials: L
authors.lastname: Qian
authors.forename: Hang
authors.initials: H
authors.lastname: Luo
authors.forename: Peng
authors.initials: P
authors.lastname: Yuan
authors.forename: Heyuan
authors.initials: H
authors.lastname: Zhu