Colloidal transport through optical tweezer arrays

Yael Roichman, Victor Wong, David G. Grier

    Research output: Contribution to journalArticlepeer-review


    Viscously damped particles driven past an evenly spaced array of potential energy wells or barriers may become kinetically locked in to the array, or else may escape from the array. The transition between locked-in and free-running states has been predicted to depend sensitively on the ratio between the particles' size and the separation between wells. This prediction is confirmed by measurements on monodisperse colloidal spheres driven through arrays of holographic optical traps.

    Original languageEnglish (US)
    Article number011407
    JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
    Issue number1
    StatePublished - 2007

    ASJC Scopus subject areas

    • Statistical and Nonlinear Physics
    • Statistics and Probability
    • Condensed Matter Physics


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