Laser speckle field as a multiple particle trap
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]
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|Source:||Journal of Optics A: Pure and Applied Optics|
|01_Shvedov_Laser_speckle_field_as_a_2010.pdf||1.03 MB||Adobe PDF||Request a copy|
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