Evanescent Field Absorption Based Fiber Optic Sensor Using Chalcogenide Glasses for Biological Tissues Detection

Sensor Letters Pub Date : 2020-02-01 DOI:10.1166/sl.2020.4196

A. Mishra, P. Singh, P. Lohia, D. K. Dwivedi

引用次数: 0

Abstract

An evanescent field based fiber optic sensor is proposed using ternary chalcogenide glasses under diffuse source illumination for straight fiber for detection of biological tissues. The field distribution within the core region and evanescent field beyond it has been shown pictorially. The simulation is performed in near infrared region for three liver tissues, normal liver tissue (N), Non-cancerous metastatic tissue (NMET) and non-cancerous hepatocellular carcinoma tissue (NHCC). Interrogation of absorption coefficient and transmitted power has been performed. The effect of variation in core diameter and wavelength on sensitivity of the samples have been studied to have high sensitivity.

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基于倏逝场吸收的硫化物玻璃光纤传感器用于生物组织检测

提出了一种利用三元硫系玻璃在漫射光源照射下用于直光纤检测生物组织的倏逝场光纤传感器。对核心区内的场分布和核心区外的消失场进行了图示。在近红外波段对正常肝组织(N)、非癌性转移组织(NMET)和非癌性肝细胞癌组织(NHCC)三种肝组织进行模拟。对吸收系数和发射功率进行了测试。研究了芯径和波长变化对样品灵敏度的影响，使样品具有较高的灵敏度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Sensor Letters 工程技术-电化学

自引率

0.00%

发文量

审稿时长

6 months

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