title: Self-pumped phase conjugation with femtosecond pulses by use of BaTiO(3).
abstract: Self-pumped phase conjugation is generally believed to be attributed to degenerate four-wave mixing. Accordingly, the phenomenon requires the existence of three waves at certain interaction regions for the excitation of the fourth one. Although this condition is not satisfied by a train of femtosecond pulses with a repetition rate of 110 MHz, we have observed self-pumped conjugate pulses retroref lected by a BaTiO(3) crystal. The conjugate character of the pulses is demonstrated with the distorter method.
authors.forename: H F
authors.initials: HF
authors.lastname: Yau
authors.forename: P J
authors.initials: PJ
authors.lastname: Wang
authors.forename: E Y
authors.initials: EY
authors.lastname: Pan
authors.forename: J
authors.initials: J
authors.lastname: Chen