Refractive Index Sensor Based on a Silica Microsphere Whispering Gallery Mode Resonator

被引：0
|
作者：
Mallik, Arun Kumar [1 ]
Wu, Qiang [1 ]
Farrell, Gerald [1 ]
Semenova, Yuliya [1 ]
机构：
[1] Dublin Inst Technol, Photon Res Ctr, Dublin 8, Ireland
来源：
2015 WORKSHOP ON RECENT ADVANCES IN PHOTONICS (WRAP) | 2015年
关键词：
Whispering Gallery Mode; Optical resonator; Optical fiber sensors; Refractive index;
D O I：
暂无
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We investigated the excitation of whispering gallery modes (WGMs) in a silica microsphere by evanescent field coupling method using a similar to 2 micrometer diameter fiber taper. Based on this configuration we have developed a sensitive refractometric sensor and observed a red-shift of the WGM resonances with the increase of the surrounding medium refractive index. A sensitivity of similar to 114 nanometer per RIU has been achieved in the range of refractive indices from 1.3963 to 1.4004
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页数：4
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