Terahertz waveguide: the fundamental component for sustainable world connectivity

Shaghik Atakaramians; Haisu Li; Muhammad T. A. Khan; Qigejian Wang; Syed Daniyal A. Shah; Rajour T. Ako; Madhu Bhaskaran; Sharath Sriram; Withawat Withayachumnankul; Andrea Blanco-Redondo; Boris T. Kuhlmey

doi:10.1117/12.2625233

31 May 2022 Terahertz waveguide: the fundamental component for sustainable world connectivity

Shaghik Atakaramians, Haisu Li, Muhammad T. A. Khan, Qigejian Wang, Syed Daniyal A. Shah, Rajour T. Ako, Madhu Bhaskaran, Sharath Sriram, Withawat Withayachumnankul, Andrea Blanco-Redondo, Boris T. Kuhlmey

Author Affiliations +

Proceedings Volume 12134, Terahertz Photonics II; 1213409 (2022) https://doi.org/10.1117/12.2625233
Event: SPIE Photonics Europe, 2022, Strasbourg, France

Abstract

Recent advances in the field of photonics and topological physics can be combined to offer a solution to planar 6G, above 100 GHz, communication devices. As specific examples, we demonstrate that a hybrid photonic crystal waveguide can support a single-mode transmission covering 0.367–0.411 THz (over twice as wide as that of all-silicon photonic crystal waveguides). By breaking the photonic crystal symmetry, topologically protected modes can be introduced with a single mode linear-dispersion transmission window (over 0.143–0.162 THz) and robust transmission around sharp corners without any deterioration in the bandwidth. Such topologically protected waveguides, here produced using simple 3D printing techniques, offer a unique simplification in design. The absence of coupling to back-propagating modes removes the requirement to carefully design away spurious resonances, offering a pathway to a truly versatile planar platform for integrated 6G devices with low loss and wide bandwidth.

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Shaghik Atakaramians, Haisu Li, Muhammad T. A. Khan, Qigejian Wang, Syed Daniyal A. Shah, Rajour T. Ako, Madhu Bhaskaran, Sharath Sriram, Withawat Withayachumnankul, Andrea Blanco-Redondo, and Boris T. Kuhlmey "Terahertz waveguide: the fundamental component for sustainable world connectivity", Proc. SPIE 12134, Terahertz Photonics II, 1213409 (31 May 2022); https://doi.org/10.1117/12.2625233

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