Laser speckle field as a multiple particle trap

V. G. Shvedov; A. V. Rode; Ya V. Izdebskaya; D. Leykam; A. S. Desyatnikov; W. Krolikowski; Yu S. Kivshar

doi:10.1088/2040-8978/12/12/124003

Laser speckle field as a multiple particle trap

V. G. Shvedov, A. V. Rode, Ya V. Izdebskaya, D. Leykam, A. S. Desyatnikov, W. Krolikowski, Yu S. Kivshar

Research output: Contribution to journal › Article › peer-review

31 Citations (Scopus)

Abstract

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 air.

Original language	English
Article number	124003
Journal	Journal of Optics
Volume	12
Issue number	12
DOIs	https://doi.org/10.1088/2040-8978/12/12/124003
Publication status	Published - Dec 2010

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AU - Shvedov, V. G.

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AU - Izdebskaya, Ya V.

AU - Leykam, D.

AU - Desyatnikov, A. S.

AU - Krolikowski, W.

AU - Kivshar, Yu S.

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N2 - 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 air.

AB - 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 air.

KW - Optical trapping in air

KW - Speckle field

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Laser speckle field as a multiple particle trap

Abstract

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