Methane and hydrogen sensor based on photonic crystal waveguide

被引：1

作者：

Zhang, Wen ^{[1
]}

Wang, Haoran ^{[1
]}

Chen, Cancan ^{[1
]}

Tang, Shoufeng ^{[1
]}

Liu, Hai ^{[1
,2
]}

机构：

[1] China Univ Min & Technol, Sch Informat & Control Engn, Xuzhou 221116, Jiangsu, Peoples R China

[2] Xuzhou Key Lab Artificial Intelligence & Big Date, Xuzhou 221116, Jiangsu, Peoples R China

来源：

NINTH INTERNATIONAL SYMPOSIUM ON PRECISION MECHANICAL MEASUREMENTS | 2019年 / 11343卷

基金：

中国国家自然科学基金;

关键词：

Gas sensor; Photonic crystal waveguide; Concentration; Mixed gas; CAVITY;

D O I：

10.1117/12.2548682

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A gas sensor is designed based on a triangular lattice air-hole photonic crystal waveguide (PCW), and the concentration of the mixed gas is measured by selectively coating a sensitive film whose refractive index changes with the gas concentration in the PCW. The transmission characteristics of light in the waveguide are studied by time domain finite element method (FDTD). The results show that the appropriate structural parameters can be selected, and the mixed gas of methane and hydrogen can be accurately measured by using two channels without interference. The sensor has compact structure and good optical properties, which provides a new idea for the detection of various gases.

引用

页数：5

共 14 条

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