Negative refraction of complex lattices of dielectric cylinders

Abstract Some photonic crystals (PCs) consisting of complex lattices of dielectric cylinders can have an effective refraction index ( n eff ) of −1. Subwavelength imaging by a slab of a honeycomb PC of dielectric cylinders with n eff = − 1 is investigated and an open resonator with a quality factor higher than 3000 is designed with the same PC. Air–PC interfaces with low reflection are also used for the slab lens and open resonator.

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