Liquid crystal hyperbolic metamaterial for wide-angle negative-positive refraction and reflection

Abstract

We show that nanosphere dispersed liquid crystal (NDLC) metamaterial can be characterized in near IR spectral region as an indefinite medium whose real parts of effective ordinary and extraordinary permittivities are opposite in signs. Based on this fact we design a novel electrooptic effect: external electric field driven switch between normal refraction, negative refraction and reflection of TM incident electromagnetic wave from the boundary vacuum/NDLC. A detailed analysis of its functionality is given based on effective medium theory combined with a study of negative refraction in anisotropic metamaterials, and Finite Elements simulations.

References in corpus (1)

• Optical Hyperlens: Far-field imaging beyond the diffraction limit

Cited by in corpus (7)

• Hamiltonian optics of hyperbolic polaritons in nanogranules
• Broad Angle Negative Refraction in Lossless all Dielectric Multilayer Asymmetric Anisotropic Metamaterial
• Optics near an hyperbolic defect
• Oriented Asymmetric Wave Propagation and Refraction Bending in Hyperbolic Media
• Geometric theory of topological defects: methodological developments and new trends
• Implications of Kleinian relativity
• Resonant absorption of electromagnetic waves in transition anisotropic media