3D printed hollow-core terahertz optical waveguides with hyperuniform disordered dielectric reflectors

Authors

Tian Ma, Ecole Polytechnique de Montreal
Hichem Guerboukha, Ecole Polytechnique de Montreal
Martin Girard, Northwest University
Andrew Squires, University of WollongongFollow
R A. Lewis, University of WollongongFollow
Maksim Skorobogatiy, Ecole Polytechnique de Montreal

RIS ID

109655

Publication Details

Ma, T., Guerboukha, H., Girard, M., Squires, A. D., Lewis, R. A. & Skorobogatiy, M. (2016). 3D printed hollow-core terahertz optical waveguides with hyperuniform disordered dielectric reflectors. Advanced Optical Materials, 4 (12), 2085-2094.

Abstract

Novel hollow-core THz waveguides featuring hyperuniform disordered reflectors are proposed, fabricated, and characterized. The reflector comprises aperiodically positioned dielectric cylinders connected with dielectric bridges. The proposed waveguides are fabricated using a 3D MultiJet printer. Optical properties of the fabricated waveguides are investigated numerically using finite element method, as well as experimentally using terahertz time-domain spectroscopy. The results confirm that proposed waveguides exhibit sizable photonic bandgaps (21%) even with relatively low refractive index contrast (resin/air). Position of the bandgaps can be easily tuned by varying reflector geometrical parameters.