title: Synthesis of picosecond pulses by spectral compression and shaping of femtosecond pulses in engineered quadratic nonlinear media.
abstract: Narrow-bandwidth picosecond pulses of predetermined spectral and temporal shapes are generated with high efficiency by frequency conversion of femtosecond pulses in lithium tantalate crystals with engineered quasi-phase-matching structures. We give examples of the synthesis of Gaussian and super-Gaussian picosecond pulses and also of a pair of synchronized phase-coherent picosecond pulses with a predetermined carrier-frequency difference.
authors.affiliation: Dipartimento di Fisica-Politecnico di Milano, ULTRAS Istituto Nazionale per la Fisica delle Materia-Consiglio Nazionale delle Ricerche, Milano, Italy. marco.marangoni@polimi.it
authors.forename: M
authors.initials: M
authors.lastname: Marangoni
authors.forename: D
authors.initials: D
authors.lastname: Brida
authors.forename: M
authors.initials: M
authors.lastname: Conforti
authors.forename: A D
authors.initials: AD
authors.lastname: Capobianco
authors.forename: C
authors.initials: C
authors.lastname: Manzoni
authors.forename: F
authors.initials: F
authors.lastname: Baronio
authors.forename: G F
authors.initials: GF
authors.lastname: Nalesso
authors.forename: C
authors.initials: C
authors.lastname: De Angelis
authors.forename: R
authors.initials: R
authors.lastname: Ramponi
authors.forename: G
authors.initials: G
authors.lastname: Cerullo