title: Ultrafast time-to-space conversion of phase by the method of spectral nonlinear optics.
abstract: We propose a method for direct conversion of an ultrashort pulse into a monochromatic beam whose wave front either repeats or is related to the phase structure of the pulse or its spectrum. This can be done by sum-frequency generation of the spectrally resolved pulses. Experimentally, we projected two spectra of the same chirped pulse onto the nonlinear crystal so that the dispersions were opposite. After sum-frequency generation, a converging or diverging monochromatic beam was formed that was the analog of the pulse spectrum. We could determine the chirp value by the measurement of the wave-front radius.
authors.forename: Y T
authors.initials: YT
authors.lastname: Mazurenko
authors.forename: S E
authors.initials: SE
authors.lastname: Putilin
authors.forename: A G
authors.initials: AG
authors.lastname: Spiro
authors.forename: A G
authors.initials: AG
authors.lastname: Beliaev
authors.forename: V E
authors.initials: VE
authors.lastname: Yashin
authors.forename: S A
authors.initials: SA
authors.lastname: Chizhov