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New Method Combines ODT and Holography, Enhances Optical Tweezer Capabilities

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A new optical diffraction tomography (ODT) technique can measure the positions of optically trapped particles in three dimensions at high speed. The method provides a more streamlined and precise way to locate and move microscopic particles than traditional optical tweezer approaches. Developed at the Korea Advanced Institute of Science and Technology (KAIST), it also enables holographic analysis of the particles’ inner structures. Optical tweezers have been used to exert microscale force on microscopic particles and for manipulating the positions of particles. Employing a...Read full article

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    BioPhotonics
    Aug 2015
    GLOSSARY
    holography
    The optical recording of the object wave formed by the resulting interference pattern of two mutually coherent component light beams. In the holographic process, a coherent beam first is split into two component beams, one of which irradiates the object, the second of which irradiates a recording medium. The diffraction or scattering of the first wave by the object forms the object wave that proceeds to and interferes with the second coherent beam, or reference wave at the medium. The resulting...
    Research & TechnologyAsia-PacificSouth KoreaKorea Advanced Institute of Science and TechnologyKAISTYongKeun ParkKyoohyun Kimlasersoptical tweezersholographyimagingBiophotonicsoptical diffraction tomographyODTTech PulseBioScan

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