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10 September 2010 Singularity and Dirac dynamics in periodic plasmonic nanostructures
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Abstract
We present the formation of a singularity in k-space from a periodic metal-dielectric nanostructure. The singularity originates from the balance between alternating normal and anomalous coupling. By employing the formalism of Dirac dynamics for relativistic quantum particles, we theoretically describe propagation dynamics of surface plasmon polaritons and demonstrate a strong diffraction anomaly (conical-like diffraction) near the singular point.
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Sung Hyun Nam, Antoinette J. Taylor, and Anatoly Efimov "Singularity and Dirac dynamics in periodic plasmonic nanostructures", Proc. SPIE 7757, Plasmonics: Metallic Nanostructures and Their Optical Properties VIII, 77572H (10 September 2010); https://doi.org/10.1117/12.861102
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