Three-dimensional holographic ring traps

Yohai Roichman, David G. Grier

    Research output: Chapter in Book/Report/Conference proceedingConference contribution


    We describe a class of diffractive optical elements that intended for use in holographic optical trapping systems to project ring-like optical traps. The ring traps' hologram is design by shape-phase algorithm, that incodes amplitude information in Fourier space into shape. The flexibility of the shape-phase algorithm leeds to several advantages over commonly used optical vorteces. While, optical vorteces carry orbital angular momentum which determines the vortex diameter, ring trap dimensions do not depend on the angular momentum. In particular, we formed a ring trap without angular momentum, or tangetial-force. Also unlike most optical vortices or ring-like Bessel beams, these ring traps have strong enough axial intensity gradients to trap objects in three dimensions. We investigated the three dimensional vortex-like trapping experimentaly and by volumetric imaging.

    Original languageEnglish (US)
    Title of host publicationComplex Light and Optical Forces
    StatePublished - 2007
    EventComplex Light and Optical Forces - San Jose, CA, United States
    Duration: Jan 24 2007Jan 25 2007

    Publication series

    NameProceedings of SPIE - The International Society for Optical Engineering
    ISSN (Print)0277-786X


    OtherComplex Light and Optical Forces
    Country/TerritoryUnited States
    CitySan Jose, CA


    • Computer holography
    • Optical fabrication
    • Trapping
    • Vortex

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics
    • Computer Science Applications
    • Applied Mathematics
    • Electrical and Electronic Engineering


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