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arXiv · 1702.05521

Hollow-Core Terahertz Optical Waveguides With Hyperuniform Disordered Reflectors

Tian Ma·Martin Girard·Andrew Squires·Roger Lewis·Roorda Sjoerd·Maksim Skorobogatiy
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Abstract

Novel hollow-core THz waveguides featuring hyperuniform disordered reflectors are proposed, fabricated, and characterized. The reflector comprise aperiodically positioned dielectric cylinders connected with dielectric bridges. The proposed waveguides are fabricated using a 3D stereolithography printer. Optical properties of the fabricated waveguide are investigated numerically using finite element method, as well as experimentally using THz-TDS spectroscopy. The results confirm that proposed waveguides exhibit sizable photonic band gaps (20%) even when relatively low refractive index contrast used (resin/air). Position of the band gaps can be easily tuned by varying reflector geometrical parameters.

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Tian Ma, Martin Girard, Andrew Squires, Roger Lewis, Roorda Sjoerd, Maksim Skorobogatiy. 2017-02-17. Hollow-Core Terahertz Optical Waveguides With Hyperuniform Disordered Reflectors. https://arxiv.org/abs/1702.05521

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