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Experimental evidence of guided-resonances in photonic crystals with aperiodically ordered supercells
Authors:Ricciardi Armando  Pisco Marco  Gallina Ilaria  Campopiano Stefania  Galdi Vincenzo  O' Faolain Liam  Krauss Thomas F  Cusano Andrea
Institution:Department for Technologies, University of Naples Parthenope, I-80143, Naples, Italy.
Abstract:We report on the first experimental evidence of guided resonances (GRs) in photonic crystal slabs based on aperiodically ordered supercells. Using Ammann-Beenker (quasiperiodic, eightfold symmetric) tiling geometry, we present our study on the fabrication, experimental characterization, and full-wave numerical simulation of two representative structures (with different filling parameters) operating at near-IR wavelengths (1300-1600 nm). Our results show a fairly good agreement between measurements and numerical predictions and pave the way for the development of new strategies (based on, e.g., the lattice symmetry breaking) for GR engineering.
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