基于玻璃丝表面引导层上的回音壁模式（WGMs）的光学传感器建模。

Modeling of an Optical Sensor Based on Whispering Gallery Modes (WGMs) on the Surface Guiding Layer of Glass Filaments.

作者信息

Tan Wei, Shi Lei, Chen Xianfeng

机构信息

Department of Physics, the State Key Laboratory on Fiber Optic Local Area Communication Networks and Advanced Optical Communication Systems, Shanghai Jiao Tong University, 800, Dong Chuan Road, Shanghai, 200240, China.

出版信息

Sensors (Basel). 2008 Oct 28;8(10):6761-6768. doi: 10.3390/s8106761.

DOI:10.3390/s8106761

PMID:27873896

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3707478/

Abstract

A ring-resonator-based refractive index sensor is proposed in this paper. Glass filaments with surface guiding layers created by ion exchange are crossed with a fiber taper to act as a ring resonator sensor. Theoretical simulation of the sensor response is proposed, and optimization of structural parameters including thickness and refractive index of the surface guiding layer and the diameter of the ring resonator for higher sensitivity is investigated. Results show that a detection limit of a variation of ~10RIU can be reached. Due to its simple fabrication and easy manipulation as well as good sensing performance, we believe such a micro-cavity sensor will find potential applications in high sensitivity optical sensing.

摘要

本文提出了一种基于环形谐振器的折射率传感器。通过离子交换形成表面引导层的玻璃细丝与光纤锥交叉，用作环形谐振器传感器。对传感器响应进行了理论模拟，并研究了结构参数的优化，包括表面引导层的厚度和折射率以及环形谐振器的直径，以实现更高的灵敏度。结果表明，可达到约10RIU变化的检测限。由于其制造简单、操作方便以及良好的传感性能，我们相信这种微腔传感器将在高灵敏度光学传感中找到潜在应用。