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 journalArticlepeer-review

27 Citations (Scopus)


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 languageEnglish
Article number124003
JournalJournal of Optics
Issue number12
Publication statusPublished - Dec 2010


  • Optical trapping in air
  • Speckle field

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

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