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Brownian particle in an optical potential of the washboard type

Research output: Contribution to journalArticle

Author(s)

S A Tatarkova, W Sibbett, K Dholakia

School/Research organisations

Abstract

Experimental observations of the fluctuation-driven net transport of silica microspheres are presented in a two-dimensional optical potential of circular symmetry created by a Bessel light beam. The optical field is tailored to break symmetry and create a static tilted periodic (washboard) potential. As the tilt of potential exceeds a threshold, a transition between locked and running modes is observed. The running mode manifests itself by the rapid accumulation of particles at the beam center.

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Details

Original languageEnglish
Pages (from-to)038101
Number of pages4
JournalPhysical Review Letters
Volume91
Issue number3
DOIs
Publication statusPublished - 18 Jul 2003

    Research areas

  • STOCHASTIC RESONANCE, RATCHETS, CELLS, MOTOR, TRANSPORT, PROTEINS

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