Subwavelength and microstructured planar THz waveguides, theory and experiment

TL;DR

This paper introduces planar dielectric subwavelength THz waveguides with porous designs that maximize air-guided power, offering potential for sensing applications due to easy mode access and reduced material absorption.

Contribution

It presents a novel design and experimental validation of subwavelength planar THz waveguides with porous structures for improved performance and sensing capabilities.

Findings

Maximized air-guided power in THz waveguides

Enhanced access to the mode region for sensing

Experimental demonstration of waveguide performance

Abstract

Planar dielectric subwavelength waveguides are proposed as waveguides for THz radiation. The waveguide porous design maximizes the fraction of power guided in the air to avoid the complexity that all the materials are highly absorbent in the THz region. Convenient access to the mode region makes them also useful for sensing of biological and chemical specimens in the THz region.