Field-effect induced tunability in planar hyperbolic metamaterials
arXiv:1507.06645 · doi:10.1103/PhysRevB.92.184101
Abstract
We demonstrate that use of the field effect to tune the effective optical parameters of a layered hyperbolic metamaterial leads to topological transitions in its dispersion characteristics in the optical regime. Field effect gating electrically modulates the permittivity in transparent conductive oxides via changes in the carrier density. These permittivity changes lead to active extreme modulation of ~200% of the effective electromagnetic parameters along with active control of the anisotropic dispersion surface of hyperbolic metamaterials and enable the opening and closing of photonic band gaps.
References in corpus (6)
- Photonic Analogue of Two-dimensional Topological Insulators and Helical One-Way Edge Transport in Bi-Anisotropic Metamaterials
- Novel hyperbolic metamaterials based on multilayer graphene structures
- Topological Photonic Phase in Chiral Hyperbolic Metamaterials
- Applications of hyperbolic metamaterial substrates
- Photonic Hyper-Crystals
- Retrieval of material parameters for uniaxial metamaterials