Two-dimensional metamaterial device design in the discrete dipole approximation
Abstract
We extend the discrete dipole method to enable the analysis and design of two-dimensional magnetoelectric metamaterial devices based on transformation optics. Key to this method is the evaluation of the dipole moments of the metamaterial elements, which can be accomplished within the framework of a rigorous Bloch wave model based on lattice sums. Corrections to the polarizabilities for spatial dispersion and magnetoelectric coupling are included in the formulation of a generalized Clausius-Mossotti relationship. We demonstrate the utility of the extended approach by designing a cloaking structure that shows considerably improved performance over that designed by assuming the standard Clausius-Mossotti relationship between constitutive parameter and polarizability.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jul 28, 2014
- Source ID
- 10.1063/1.4891295
Entities
People
- David R. Smith
- Nathan Landy
Organizations
- Army Research Office
- Duke University