title: Phase conjugation of pico-second pulses by four wave mixing in a Nd:YVO4 slab amplifier.
abstract: We demonstrate 80 times phase conjugation by four-wave mixing of pico-second pulses in a diode-pumped Nd:YVO4 amplifier. Slight pulse broadening as a result of four wave mixing processes was observed.
authors.forename: Yasukuni
authors.initials: Y
authors.lastname: Ojima
authors.forename: Takashige
authors.initials: T
authors.lastname: Omatsu