title: Self-referencing of the carrier-envelope slip in a 6-fs visible parametric amplifier.
abstract: We demonstrate a scheme for parametric amplification that allows us to measure the drift of the carrier-envelope phase of the output signal pulses. The method is based on the unique double phase-matching properties of a noncollinearly pumped BBO crystal, making possible the detection of the interference between the signal and the frequency-doubled idler. Additionally, the suggested device greatly simplifies the single-shot measurement of the phase evolution in Ti:sapphire laser amplifiers by dispensing with harmonic synthesis from the spectral edges of an octave-wide supercontinuum.
authors.forename: Andrius
authors.initials: A
authors.lastname: Baltuska
authors.forename: Takao
authors.initials: T
authors.lastname: Fuji
authors.forename: Takayoshi
authors.initials: T
authors.lastname: Kobayashi