Broadband Single-Mode Hybrid Photonic Crystal Waveguides for Terahertz Integration on a Chip

TL;DR

This paper presents a novel hybrid terahertz waveguide chip that combines silicon photonic crystals with gold plates, achieving wide single-mode transmission with low dispersion and loss for integrated terahertz systems.

Contribution

It introduces a new hybrid waveguide design for terahertz frequencies, combining simulation and experimental validation for broadband, low-loss, single-mode operation.

Findings

Wide single-mode transmission window achieved

Low group velocity dispersion demonstrated

Experimental results confirm low loss performance

Abstract

A novel terahertz hybrid waveguide chip consisting of silicon photonic crystals sandwiched in parallel gold plates is developed. Both simulation and experimental results demonstrate that the hybrid waveguide offers a wide single-mode transmission window with low group velocity dispersion and low loss. This compact, substrate-free terahertz chip would play a significant role in broadband, dense-integrated, multi-functional terahertz systems.