Nanophotonic control of the Förster resonance energy transfer efficiency

Christian Blum, Niels Zijlstra, Ad Lagendijk, Martijn Wubs, Allard P Mosk, Vinod Subramaniam, Willem L Vos

    Research output: Contribution to JournalArticleAcademicpeer-review

    Abstract

    We have studied the influence of the local density of optical states (LDOS) on the rate and efficiency of Förster resonance energy transfer (FRET) from a donor to an acceptor. The donors and acceptors are dye molecules that are separated by a short strand of double-stranded DNA. The LDOS is controlled by carefully positioning the FRET pairs near a mirror. We find that the energy transfer efficiency changes with LDOS, and that, in agreement with theory, the energy transfer rate is independent of the LDOS, which allows one to quantitatively control FRET systems in a new way. Our results imply a change in the characteristic Förster distance, in contrast to common lore that this distance is fixed for a given FRET pair.

    Original languageEnglish
    Pages (from-to)203601
    JournalPhysical Review Letters
    Volume109
    Issue number20
    DOIs
    Publication statusPublished - 16 Nov 2012

    Keywords

    • DNA
    • Fluorescence Resonance Energy Transfer
    • Fluorescent Dyes
    • Optics and Photonics
    • Polymethyl Methacrylate
    • Polyvinyl Alcohol
    • Thermodynamics
    • Journal Article
    • Research Support, Non-U.S. Gov't

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