Ultrasensitive sensing in air based on graphene-coated hollow core fibers

被引：22

作者：

Huang, Meng ^{[1
,2
]}

Yang, Conghao ^{[3
]}

Sun, Bing ^{[1
,2
]}

Zhang, Zuxing ^{[1
,2
]}

Zhang, Lin ^{[3
]}

机构：

[1] Nanjing Univ Posts & Telecommun, Adv Photon Technol Lab, Coll Elect & Opt Engn, Nanjing 210023, Jiangsu, Peoples R China

[2] Nanjing Univ Posts & Telecommun, Coll Microelect, Nanjing 210023, Jiangsu, Peoples R China

[3] Aston Univ, Aston Inst Photon Technol, Birmingham B4 7ET, W Midlands, England

来源：

OPTICS EXPRESS | 2018年 / 26卷 / 03期

基金：

中国国家自然科学基金;

关键词：

REFRACTIVE-INDEX SENSOR; PHOTONIC CRYSTAL FIBER; MACH-ZEHNDER INTERFEROMETER; TEMPERATURE; REFRACTOMETER; SENSITIVITY; OXIDE;

D O I：

10.1364/OE.26.003098

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The mismatching between permittivities of guided mode and air limits the operation of accurately monitoring the change in the refractive index of the surrounding air. To solve it, we propose a platform using a hollow core fiber with the integration of graphene coating. Experimental results demonstrate that the anti-resonant reflecting guidance has been enhanced while it induces sharply and periodically lossy dips in the transmission spectrum. We conclude a sensitivity of -365.9 dB/RIU and a high detection limit of 2.73 x 10(-6) RIU by means of interrogating the intensity of the lossy dips. We believe that this configuration opens a direction for highly sensitive sensing in researches of chemistry, medicine, and biology. (c) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：3098 / 3107

页数：10

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