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Laser speckle field as a multiple particle trap

Shvedov, Vladlen; Rode, Andrei V; Izdebskaya, Yana; Leykam, Daniel; Desyatnikov, Anton S; Krolikowski, Wieslaw; Kivshar, Yuri


We demonstrate that a speckle pattern in the spatially coherent laser field transmitted by a diffuser forms a multitude of three-dimensional intensity micro-pockets acting as particle traps for air-borne light absorbing particles. Confinement of up to a few thousand particles in air with a unidirectional single beam has been achieved. Theoretical analysis of the speckle defined trapping volume is in a good agreement with experimental results on capturing of aggregates of carbon nanoparticles in...[Show more]

CollectionsANU Research Publications
Date published: 2010
Type: Journal article
Source: Journal of Optics A: Pure and Applied Optics
DOI: 10.1088/2040-8978/12/12/124003


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