Temperature sensor based on surface plasmon resonance within selectively coated photonic crystal fiber

被引：137

作者：

Peng, Yang ^{[1
]}

Hou, Jing ^{[1
]}

Huang, Zhihe ^{[1
]}

Lu, Qisheng ^{[1
]}

机构：

[1] Natl Univ Def Technol, Coll Optoelect Sci & Engn, Changsha 410073, Hunan, Peoples R China

来源：

APPLIED OPTICS | 2012年 / 51卷 / 26期

基金：

中国国家自然科学基金;

关键词：

MICROSTRUCTURED OPTICAL-FIBER; ELECTRON-ELECTRON SCATTERING; NOBLE-METALS;

D O I：

10.1364/AO.51.006361

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate a temperature sensor based on surface plasmon resonances supported by photonic crystal fibers (PCFs). Within the PCF, to enhance the sensitivity of the sensor, the air holes of the second layer are filled with a large thermo-optic coefficient liquid and some of those air holes are selectively coated with metal. Temperature variations will induce changes of coupling efficiencies between the fundamental core mode and the plasmonic mode, thus leading to different loss spectra that will be recorded. In this paper, variations of the dielectric constants of all components, including the metal, the filled liquid, and the fused silica, are considered. We conduct numerical calculations to analyze the mode profile and evaluate the power loss, demonstrating a temperature sensitivity as high as 720 pm/degrees C. (C) 2012 Optical Society of America

引用

页码：6361 / 6367

页数：7

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