The electromagnetic scattering properties of identical parallel dielectric cylinders configured to closely match a desired response are investigated. Spatial arrangements obtained using a computationally efficient gradient-based optimizer and finite difference forward solver are aperiodic and nonintuitive. We find good agreement between calculations and experiments performed at 37.5GHz and suggest that finite-sized aperiodic configurations may provide access to functionality inaccessible by conventional periodic, photonic crystal inspired, designs.
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Seliger et al. (2006) studied this question.
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