A Highly Sensitive Terahertz Waveguide Plasmonic Sensor for Ethanol Sensing
Source abstract
Abstract
This paper proposes and numerically investigates a spider-web-like cladding photonic crystal fiber with a hexagonal hollow core–based ethanol sensor utilizing terahertz (THz) signal. The finite element method (FEM) technique is applied to examine sensing and guiding characteristics of this sensor by using the COMSOL Multiphysics software. The sensor outperformed other ongoing studies by achieving a high relative sensitivity of 97.09% and an incredibly low confinement loss of 3.68 × 10−12 dB/m at the optimal frequency. In addition, the sensor has a large effective area of 6.458 × 10−08 m2 and spot size with a tiny effective material loss of 0.0051 cm−1. This study represents the huge hexagonal core and a set of rectangular air holes in spider-shaped cladding to simplify manufacture. Future applications for identifying ethanol may greatly benefit from its exceptional sensitivity and guiding qualities.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Terahertz technology and applications · Photonic and Optical Devices · Photonic Crystal and Fiber Optics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (32)
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