title: High-efficiency single-crystal third-harmonic generation in BiB₃O₆.
abstract: Third-harmonic generation of high-intensity, sub-100-fs idler pulses from a Ti:sapphire-laser-pumped optical parametric amplifier is demonstrated by using a single nonlinear crystal of BiB₃O₆ (BIBO). Maximum internal energy conversion as high as 11% from the fundamental to the third harmonic is achieved by phase- and group-velocity matching for the direct cubic nonlinear process together with the velocity-mismatched cascading quadratic processes.
authors.affiliation: Max-Born-Institute for Nonlinear Optics and Ultrafast Spectroscopy, Berlin, Germany. nlocrystal@gmail.com
authors.forename: Kentaro
authors.initials: K
authors.lastname: Miyata
authors.forename: Valentin
authors.initials: V
authors.lastname: Petrov
authors.forename: Frank
authors.initials: F
authors.lastname: Noack