Spatial mode-selective waveguide with hyperbolic cladding

Journal article (2016)

Authors

Y. Tang ImPhys/Optics - AS
Z. Xi ImPhys/Optics - AS
M Xu TNO, ImPhys/Optics - AS
A.J.L. Adam ImPhys/Optics - AS
Paul Urbach ImPhys/Optics - AS
Research Group
ImPhys/Optics (AS) (TU Delft)
More Info
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Published Date

2016

Language

English

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Faculty

Applied Sciences

Department

ImPhys/Imaging Physics

Research Group

ImPhys/Optics

Abstract

Hyperbolic metamaterials (HMMs) are anisotropic materials with a permittivity tensor that has both positive and negative eigenvalues. Here we report that by using a type II HMM as a cladding material, a waveguide that only supports higher-order modes can be achieved, while the lower-order modes become leaky and are absorbed in the HMM cladding. This counter-intuitive property can lead to novel application in optical communications and photonic integrated circuits. The loss in our HMM insulator-HMM (HIH) waveguide is smaller than that of similar guided modes in a metal-insulator-metal (MIM) waveguide.