Refractive index sensing property of metallic rectangular slit arrays with two transmission peaks

Qingchen Wei; Gongli Xiao; Hongyan Yang; Junlin Xu; Xiuhua Yang; Wanying Dou

doi:10.1117/12.2315127

20 February 2018 Refractive index sensing property of metallic rectangular slit arrays with two transmission peaks

Qingchen Wei, Gongli Xiao, Hongyan Yang, Junlin Xu, Xiuhua Yang, Wanying Dou

Proceedings Volume 10697, Fourth Seminar on Novel Optoelectronic Detection Technology and Application; 106974V (2018) https://doi.org/10.1117/12.2315127
Event: Fourth Seminar on Novel Optoelectronic Detection Technology and Application, 2017, Nanjing, China

Abstract

A surface plasmon resonance (SPR) sensor on an optical fiber endface with metallic rectangular slit array structure is presented. The finite-difference time-domain (FDTD) method was utilized to study the influence of structural parameters on the transmission spectrum and the refractive index (RI) sensing characteristic based on the two transmission peaks. The proposed sensor is compact and has the potential to be used in biomedical applications, having two transmission peaks with a sensitivity of 1209 and 500 nm per refractive index unit (RIU) respectively.

Citation Download Citation

Qingchen Wei, Gongli Xiao, Hongyan Yang, Junlin Xu, Xiuhua Yang, and Wanying Dou "Refractive index sensing property of metallic rectangular slit arrays with two transmission peaks", Proc. SPIE 10697, Fourth Seminar on Novel Optoelectronic Detection Technology and Application, 106974V (20 February 2018); https://doi.org/10.1117/12.2315127

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