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Quantifying the magnetic nature of light emission

Author

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  • Tim H. Taminiau

    (Brown University, School of Engineering
    ICFO - Institut de Ciencies Fotoniques, Mediterranean Technology Park
    Present address: Kavli Institute of Nanoscience, Delft University of Technology, PO Box 5046, 2600 GA Delft, The Netherlands.)

  • Sinan Karaveli

    (Brown University, School of Engineering)

  • Niek F. van Hulst

    (ICFO - Institut de Ciencies Fotoniques, Mediterranean Technology Park
    ICREA - Institució Catalana de Recerca i Estudis Avançats)

  • Rashid Zia

    (Brown University, School of Engineering)

Abstract

Tremendous advances in the study of magnetic light-matter interactions have recently been achieved using man-made nanostructures that exhibit and exploit an optical magnetic response. However, naturally occurring emitters can also exhibit magnetic resonances in the form of optical-frequency magnetic-dipole transitions. Here we quantify the magnetic nature of light emission using energy- and momentum-resolved spectroscopy, and leverage a pair of spectrally close electric- and magnetic-dipole transitions in trivalent europium to probe vacuum fluctuations in the electric and magnetic fields at the nanometre scale. These results reveal a new tool for nano-optics: an atomic-size quantum emitter that interacts with the magnetic component of light.

Suggested Citation

  • Tim H. Taminiau & Sinan Karaveli & Niek F. van Hulst & Rashid Zia, 2012. "Quantifying the magnetic nature of light emission," Nature Communications, Nature, vol. 3(1), pages 1-6, January.
    • Handle: RePEc:nat:natcom:v:3:y:2012:i:1:d:10.1038_ncomms1984
    DOI: 10.1038/ncomms1984
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