Polymer microfiber bridging Bi-tapered refractive index sensor based on evanescent field

OPTICS COMMUNICATIONS

卷:414

Article

Lv, Ri-Qing¹  Wang, Qi^1,2  Wang, Bo-Tao¹  Liu, Yu¹  Kong, Lingxin¹ 

[1] Northeastern Univ, Coll Informat Sci & Engn, Shenyang 110819, Liaoning, Peoples R China

[2] Northeastern Univ, State Key Lab Synthet Automat Proc Ind, Shenyang 110819, Liaoning, Peoples R China

关键词: Refractive index sensor;    Micro optical waveguide;    Tapered fiber;    PMMA;    PDMS;    High sensitivity;   

DOI  :  10.1016/j.optcom.2017.12.063

来源: Elsevier

【 摘 要 】

A PDMS/graphene enhanced PMMA micro optical waveguide sensor is reported in terms of fabrication method and optical characteristics. The micro optical waveguide with a diameter of 6 mu m and a length of 800 mu m is used as the sensing probe to realize refractive index (RI) measurement suspended in NaCl solutions with different concentrations. Experimental results show that the refractive index sensing sensitivity can reach 2027.97 nm/RIU within the refractive index ranging from 1.3333-1.3426. Research results show that PMMA/graphene micro optical waveguide doped with PDMS is an excellent high sensitive sensing technology in refractive index detection field. (C) 2018 Elsevier B.V. All rights reserved.

【 授权许可】

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