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Computer-Generated Holographic Gratings in Soft Matter
Gianluigi Zito, Antigone Marino, Bruno Piccirillo +3
Standard multiple-beam holography has been largely used to produce gratings in polymer-liquid crystal composites, like POLICRYPS, H-PDLC gratings and POLIPHEM [1]. In this work we…
Spectral characterization of two-dimensional Thue-Morse quasicrystals realized with high resolution lithography
V Matarazzo, S De Nicola, G Zito +5
One-dimensional Thue-Morse (ThMo) lattices are examples of self-similar structures that exhibit bandgap phenomena. ThMo multilayers may also possess fractal photonic bandgaps that…
FDTD analysis of photonic quasicrystals with different tiling geometries and fabrication by single beam computer-generated holography
G Zito, B Piccirillo, E Santamato +3
Multiple-beam holography has been widely used for the realization of photonic quasicrystals with high rotational symmetries not achievable by the conventional periodic crystals. Ac…
Isotropic properties of the photonic band gap in quasicrystals with low-index contrast
Priya Rose, E. Di Gennaro, G. Abbate +1
We report on the formation and development of the photonic band gap in two-dimensional 8-, 10- and 12-fold symmetry quasicrystalline lattices of low index contrast. Finite size str…
Bandgap properties of low index contrast aperiodically ordered photonic quasicrystals
Gianluigi Zito, T. Priya Rose, Emiliano Di Gennaro +3
We numerically analyze, using Finite Difference Time Domain simulations, the bandgap properties of photonic quasicrystals with a low index contrast. We compared 8-, 10- and 12-fold…