Laser-modulated ordering of gold nanoparticles at the air/water interface

Abstract

Beam me up, Scotty! Laser irradiation of Langmuir monolayers of gold nanoparticles (NPs) and elaidic acid led to dramatic reorganization that was dependent on the laser power (see picture, scale bar=100 μm). Variabletemperature experiments indicate that localized surface heating in an extremely small temperature range, induced by the laser beam, causes ordering of the NPs. © 2009 Wiley-VCH Verlag GmbH & Co. KGaA.