Title

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

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.

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Link to publisher version (DOI)

http://dx.doi.org/10.1002/adom.201600171