Optical forces arising from phase gradients

Yohai Roichman, Bo Sun, Yael Roichman, Jesse Amato-Grill, David G. Grier

    Research output: Contribution to journalArticlepeer-review

    Abstract

    We demonstrate both theoretically and experimentally that phase gradients in a light field can be used to create a new category of optical traps complementary to the more familiar intensity-gradient traps known as optical tweezers. We further show that the work done by phase-gradient forces is path dependent and briefly discuss some ramifications of this nonconservativity.

    Original languageEnglish (US)
    Article number013602
    JournalPhysical Review Letters
    Volume100
    Issue number1
    DOIs
    StatePublished - Jan 8 2008

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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