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Filtering by: Academic Affiliation Physics Creator Wangberg, Robyn

Nanowire metamaterials with extreme optical anisotropy

Creator:

Elser, Justin, Wangberg, Robyn, Podolskiy, Viktor A., and Narimanov, Evgenii E.

Abstract:

The authors study perspectives of nanowire metamaterials for negative-refraction waveguides, high-performance polarizers, and polarization-sensitive biosensors. They demonstrate that the behavior of these composites is strongly influenced by the concentration, distribution, and geometry of the nanowires, derive an analytical description of electromagnetism in anisotropic nanowire-based metamaterials, and explore the limitations of...

Resource Type:

Article
Sub-diffraction light propagation and imaging in planar negative refraction waveguides

Creator:

Wangberg, Robyn

Abstract:

In this dissertation we study the electromagnetic properties of planar waveguides with non-magnetic strongly anisotropic dielectric cores. We develop an analytical description of the mode propagation in these systems and show that the index of refraction can be either positive or negative depending on the specific material parameters. Propagating modes...

Resource Type:

Dissertation