title: Light-induced second-harmonic generation in azo-dye polymers.
abstract: The permanent all-optical poling of an azo-aromatic acrylic copolymer is experimentally demonstrated by seeding preparation in a backward phase-conjugation geometry. The microscopic mechanism involves an orientational hole burning followed by orientational redistribution caused by trans-to-cis isomerization of the azo-dye chromophores. The characteristic kinetics of monitored by second-harmonic generation.
authors.forename: F
authors.initials: F
authors.lastname: Charra
authors.forename: F
authors.initials: F
authors.lastname: Kajzar
authors.forename: J M
authors.initials: JM
authors.lastname: Nunzi
authors.forename: P
authors.initials: P
authors.lastname: Raimond
authors.forename: E
authors.initials: E
authors.lastname: Idiart