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Plasmon-mediated magneto-optical transparency
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2013 (English)In: Nature Communications, ISSN 2041-1723, E-ISSN 2041-1723, Vol. 4, 2128- p.Article in journal (Refereed) Published
Abstract [en]

Magnetic field control of light is among the most intriguing methods for modulation of light intensity and polarization on sub-nanosecond timescales. The implementation in nanostructured hybrid materials provides a remarkable increase of magneto-optical effects. However, so far only the enhancement of already known effects has been demonstrated in such materials. Here we postulate a novel magneto-optical phenomenon that originates solely from suitably designed nanostructured metal-dielectric material, the so-called magneto-plasmonic crystal. In this material, an incident light excites coupled plasmonic oscillations and a waveguide mode. An in-plane magnetic field allows excitation of an orthogonally polarized waveguide mode that modifies optical spectrum of the magneto-plasmonic crystal and increases its transparency. The experimentally achieved light intensity modulation reaches 24%. As the effect can potentially exceed 100%, it may have great importance for applied nanophotonics. Further, the effect allows manipulating and exciting waveguide modes by a magnetic field and light of proper polarization.

Place, publisher, year, edition, pages
2013. Vol. 4, 2128- p.
Keyword [en]
Magnetic-Field, Ferromagnetic-Films, Transmission, Enhancement, Resonance, Permittivity, Crystals, Gratings
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-129132DOI: 10.1038/ncomms3128ISI: 000323715900008Scopus ID: 2-s2.0-84880319627OAI: oai:DiVA.org:kth-129132DiVA: diva2:652294
Note

QC 20130930

Available from: 2013-09-30 Created: 2013-09-19 Last updated: 2017-12-06Bibliographically approved

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Khartsev, Sergiy I.

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Grishin, Alexander M.Khartsev, Sergiy I.
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