The holographic optical micro-manipulation system based on counter-propagating beams

T. Cizmar, O. Brzobohaty, K. Dholakia, P. Zemanek

    Research output: Contribution to journalArticle

    80 Citations (Scopus)

    Abstract

    We present a system employing a dynamic diffractive optical element to control properties of two counter-propagating beams overlapping within a sample chamber. This system allows us to eliminate optical aberrations along both beam pathways and arbitrarily switch between various numbers of laser beams and their spatial profiles (i.e. Gaussian, Laguerre-Gaussian, Bessel beams, etc.). We successfully tested various counter-propagating dual-beam configurations including optical manipulation of both high and low index particles in water or air, particle delivery in an optical conveyor belt and the formation of colloidal solitons by optical binding. Furthermore, we realized a novel optical mixer created by particles spiraling in counter-propagating interfering optical vortices and a new tool for optical tomography or localized spectroscopy enabling sterile contactless rotation and reorientation of a trapped living cell.

    Original languageEnglish
    Pages (from-to)50-56
    Number of pages7
    JournalLaser Physics Letters
    Volume8
    Issue number1
    DOIs
    Publication statusPublished - Jan 2011

    Keywords

    • FORCES
    • optical rotator
    • LIGHT
    • TWEEZERS
    • dual beam trap
    • COHERENCE TOMOGRAPHY
    • STAPHYLOCOCCUS-EPIDERMIDIS
    • PARTICLES
    • RAMAN-SPECTROSCOPY
    • GAUSSIAN STANDING-WAVE
    • spatial light modulator
    • BESSEL BEAMS
    • holographic optical trapping
    • TRAP

    Cite this