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Nano Lett. 2009 Mar;9(3):1255-9. doi: 10.1021/nl900208z.

Light-bending nanoparticles.

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  • 1Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, USA.


Metallic nanostructures with their geometry-dependent optical resonances are a topic of intense current interest due to their ability to manipulate light in ways not possible with conventional optical materials. A particularly fascinating aspect of these systems is the recently realized possibility of creating optical frequency "magnetic plasmon" responses of comparable magnitude to the "electric plasmon" response. Here we show that Au nanocups at their magnetoinductive resonance have the unique ability to redirect scattered light in a direction dependent on cup orientation, as a true three-dimensional nanoantenna.

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