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Free keywords:
PLASMONIC-PHOTONIC CRYSTALS; OPTICAL-PROPERTIES; HETEROSTRUCTURES;
TRANSMISSION; ENHANCEMENT; SUBSTRATE; SURFACE; SPHERES; BANDS; FIELDPhysics;
Abstract:
Two-dimensional slab hybrid metal-dielectric photonic crystals, which are prepared by assembling polymer colloidal spheres into closely packed monolayers of hexagonal symmetry on a gold-coated glass substrate, show an improved confinement of light compared with a colloidal monolayer on a glass substrate. We demonstrated that the optical response of such hybrid crystals consists of diffractively coupled waveguiding modes, Fabry-Perot resonances, and Mie resonances. Correspondingly, two major mechanisms, namely, band transport and hopping of localized excitations, participate in the in-plane light transport in such hybrid crystals.
