Guiding, bending, and splitting of coupled defect surface modes in a surface-wave photonic crystal

Abstract

We experimentally demonstrate a type of waveguiding mechanism for coupled surface-wave defect modes in a surface-wave photonic crystal. Unlike conventional spoof surface plasmon waveguides, waveguiding of coupled surface-wave defect modes is achieved through weak coupling between tightly localized defect cavities in an otherwise gapped surface-wave photonic crystal, as a classical wave analogue of tight-binding electronic wavefunctions in solid state lattices.

References in corpus (3)

• Topological Photonics
• Photonic Analogue of Two-dimensional Topological Insulators and Helical One-Way Edge Transport in Bi-Anisotropic Metamaterials
• Scheme to Achieve Silicon Topological Photonics

Cited by in corpus (3)

• Bandgap widening by disorder in rainbow metamaterials
• Flat-band localization and self-collimation of light in photonic crystals
• Tunable band-notched line-defect waveguide in a surface-wave photonic crystal