title: Nonlinear optics with phase-controlled pulses in the sub-two-cycle regime.
abstract: Nonlinear optical effects due to the phase between carrier and envelope are observed with 5 fs pulses from a Kerr-lens mode-locked Ti:sapphire laser. These sub-two-cycle pulses with octave spanning spectra are the shortest pulses ever generated directly from a laser oscillator. Detection of the carrier-envelope phase slip is made possible by simply focusing the short pulses directly from the oscillator into a BBO crystal. As a further example of nonlinear optics with such short pulses, the interference between second- and third-harmonic components is also demonstrated.
authors: High Frequency and Quantum Electronics Laboratory, University of Karlsruhe, Engesserstrasse 5, D-76128 Karlsruhe, Germany.
authors: U
authors: U
authors: Morgner
authors: R
authors: R
authors: Ell
authors: G
authors: G
authors: Metzler
authors: T R
authors: TR
authors: Schibli
authors: F X
authors: FX
authors: Kärtner
authors: J G
authors: JG
authors: Fujimoto
authors: H A
authors: HA
authors: Haus
authors: E P
authors: EP
authors: Ippen