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Opt Express. 2009 Oct 12;17(21):18820-5. doi: 10.1364/OE.17.018820.

Laser-induced backward transfer of gold nanodroplets.

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Laser Zentrum Hannover eV, Hollerithalle 8, 30419 Hannover, Germany.


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.

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