Directive Emission from Defect-Free Dodecagonal Photonic Quasicrystals: A Leaky-Wave Characterization

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dc.creatorMicco, Alessandro
dc.creatorGaldi, Vincenzo
dc.creatorCapolino, Filippo
dc.creatorDella Villa, Alessandro
dc.creatorPierro, Vincenzo
dc.creatorEnoch, Stefan
dc.creatorTayeb, Gerard
dc.date2007-11-20
dc.date2009-01-20
dc.date.accessioned2026-07-07T12:31:20Z
dc.date.available2026-07-07T12:31:20Z
dc.descriptionIn this paper, we study the radiation from embedded sources in two-dimensional finite-size "photonic-quasicrystal" (PQC) slabs made of dielectric rods arranged according to a 12-fold symmetric aperiodic tiling. The results from our investigation, based on rigorous full-wave simulations, show the possibility of achieving broadside radiation at multiple frequencies, with high-directivity (e.g., 15 dB) and low-sidelobes (e.g., -12 dB). We also show that leaky waves are supported by a PQC slab, and that the beamwidth is directly proportional to the leaky-wave attenuation constant, which provides a physically-incisive interpretation of the observed radiation characteristics.
dc.description7 pages, 7 figures; slight change in the title, major revision in the text and figures. Accepted for publication in Phys. Rev. B
dc.identifierhttps://arxiv.org/abs/0711.3097
dc.identifierhttp://arxiv.org/abs/0711.3097
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/216413
dc.subjectOptics
dc.titleDirective Emission from Defect-Free Dodecagonal Photonic Quasicrystals: A Leaky-Wave Characterization
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