Optical traps with geometric aberrations

Yael Roichman, Alex Waldron, Emily Gardel, David G. Grier

    Research output: Contribution to journal › Article

    Abstract

    We assess the influence of geometric aberrations on the in-plane performance of optical traps by studying the dynamics of trapped colloidal spheres in deliberately distorted holographic optical tweezers. The lateral stiffness of the traps turns out to be insensitive to moderate amounts of coma, astigmatism, and spherical aberration. Moreover holographic aberration correction enables us to compensate inherent shortcomings in the optical train, thereby adaptively improving its performance. We also demonstrate the effects of geometric aberrations on the intensity profiles of optical vortices, whose readily measured deformations suggest a method for rapidly estimating and correcting geometric aberrations in holographic trapping systems.

    Original languageEnglish (US)
    Pages (from-to)3425-3429
    Number of pages5
    JournalApplied Optics
    Volume45
    Issue number15
    DOIs
    StatePublished - May 20 2006

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    Aberrations
    aberration
    traps
    Optical tweezers
    astigmatism
    coma
    stiffness
    Vortex flow
    estimating
    trapping
    Stiffness
    vortices
    profiles

    ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics

    Cite this

    Roichman, Y., Waldron, A., Gardel, E., & Grier, D. G. (2006). Optical traps with geometric aberrations. Applied Optics, 45(15), 3425-3429. https://doi.org/10.1364/AO.45.003425

    Optical traps with geometric aberrations. / Roichman, Yael; Waldron, Alex; Gardel, Emily; Grier, David G.

    In: Applied Optics, Vol. 45, No. 15, 20.05.2006, p. 3425-3429.

    Research output: Contribution to journal › Article

    Roichman, Y, Waldron, A, Gardel, E & Grier, DG 2006, 'Optical traps with geometric aberrations', Applied Optics, vol. 45, no. 15, pp. 3425-3429. https://doi.org/10.1364/AO.45.003425
    Roichman Y, Waldron A, Gardel E, Grier DG. Optical traps with geometric aberrations. Applied Optics. 2006 May 20;45(15):3425-3429. https://doi.org/10.1364/AO.45.003425
    Roichman, Yael ; Waldron, Alex ; Gardel, Emily ; Grier, David G. / Optical traps with geometric aberrations. In: Applied Optics. 2006 ; Vol. 45, No. 15. pp. 3425-3429.
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