title: Multiphoton laser direct writing of two-dimensional silver structures.
abstract: We report a novel and efficient method for the laser direct writing of two-dimensional silver structures. Multiphoton absorption of a small fraction of the output of a Ti:sapphire oscillator is sufficient to photoreduce silver nitrate in a thin film of polyvinylpyrrolidone that has been spin-coated on a substrate. The polymer can then be washed away, leaving a pattern consisting of highly interconnected silver nanoparticles. We report the characterization of the silver patterns using scanning electron and atomic force microscopies, and demonstrate the application of this technique in the creation of diffraction gratings.
authors.forename: Tommaso
authors.initials: T
authors.lastname: Baldacchini
authors.forename: Anne-Cécile
authors.initials: AC
authors.lastname: Pons
authors.forename: Josefina
authors.initials: J
authors.lastname: Pons
authors.forename: Christopher
authors.initials: C
authors.lastname: Lafratta
authors.forename: John
authors.initials: J
authors.lastname: Fourkas
authors.forename: Yong
authors.initials: Y
authors.lastname: Sun
authors.forename: Michael
authors.initials: M
authors.lastname: Naughton