Novel sol-gel material for fabrication of a long period waveguide grating filter as a precise thermometer

被引：0
|
作者：
WANG Xin 1
2 College of Information Science & Engineering
3 Wuhan National Laboratory for Optoelectronics
机构：
来源：
Science China(Physics,Mechanics & Astronomy) | 2011年 / Mechanics & Astronomy)2011卷 / 11期
基金：
中国国家自然科学基金; 中央高校基本科研业务费专项资金资助;
关键词：
LPWG filter; soft-lithography; sol-gel material; temperature sensitivity;
D O I：
暂无
中图分类号：
TN713 [滤波技术、滤波器];
学科分类号：
080902 ;
摘要：
A new kind of organic-inorganic hybrid HfO 2/SiO 2 sol-gel material with a large thermo-optic coefficient and a wide linear tunable temperature range has been developed for fabrication of a long period waveguide grating (LPWG) filter,whose parameters were optimized and designed by using finite difference time domain (FDTD) simulations.The LPWG filter,a periodic rectangle-corrugated grating structure,was easily fabricated with soft-lithography technique.At a temperature range from 19°C to 70°C,the fabricated LPWG filter element demonstrated a high temperature sensitivity of about 6.5 nm/°C and a wide linear tunable temperature range of 51°C,so that it can be used as a precise thermometer.Our results are useful for the designs of LPWG filters for the implementation of a wide range of thermo-optic functions.
引用
收藏
页码：1967 / 1971
页数：5
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