Hybrid plasmonic terahertz fibers for sensing applications

TL;DR

This paper introduces a new hybrid plasmonic terahertz fiber with metallic wires in a porous dielectric, enabling sensitive detection of analytes through changes in modal losses for sensing applications.

Contribution

The study presents a novel fiber design that leverages modal loss variations for resonant sensing, advancing terahertz fiber sensor technology.

Findings

Significant modal loss changes with analyte introduction

Potential for high-sensitivity terahertz sensing

Novel fiber structure for resonant sensing applications

Abstract

A novel plasmonic THz fiber featuring two metallic wires in a porous dielectric cladding is studied for resonant sensing applications. In our design, introduction of even lossless analytes into the fiber core leads to significant changes in the modal losses, which is used as a transduction mechanism.