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Optimization of aperiodic dielectric structures

Journal of Applied PhysicsPublished 1 August 2006
Philip Seliger, Mohammad Mahvash, C. M. Wang, A. F. J. Levi
Citations54
SJR quartileQ2
SJR score0.58
SNIP0.98

Abstract

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.

Keywords

Materials ScienceEngineeringPhysics and Astronomy