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Research Highlights

Nature Physics 5, 85 (1 February 2009) | doi:10.1038/nphys1201

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High-Q times two Nature 457, 455–458 (2009) The emerging field of plasmonics seeks to control light at scales far below the diffraction limit by exploiting its interaction with surface plasmon polaritons (SPPs). SPPs are quasiparticles that consist of both optical and electronic components, and emerge at the interface between a conductor and an insulator.