title: Laser-induced backward transfer of gold nanodroplets.
abstract: It is demonstrated that femtosecond laser-induced processes can be applied for controllable transfer of spherical gold nanodroplets from a thin gold film towards a glass substrate. The size of the transferred droplets depends on the volume of laser-molten gold and can be varied by changing the laser beam focus on the sample surface and the film thickness. Single- and multi-pulse fabrication of microstructures consisting of spherical gold nanodroplets is demonstrated. Mechanisms of these laser-induced backward transfer processes are discussed.
authors.affiliation: Laser Zentrum Hannover eV, Hollerithalle 8, 30419 Hannover, Germany. a.kuznetsov@lzh.de
authors.forename: A I
authors.initials: AI
authors.lastname: Kuznetsov
authors.forename: J
authors.initials: J
authors.lastname: Koch
authors.forename: B N
authors.initials: BN
authors.lastname: Chichkov