Theoretical investigation of detection accuracy of surface plasmon resonance sensor with dielectric layer

Chengyou Lin; Shujing Chen

doi:10.1117/1.JNP.11.046014

28 November 2017 Theoretical investigation of detection accuracy of surface plasmon resonance sensor with dielectric layer

Chengyou Lin, Shujing Chen

Author Affiliations +

Journal of Nanophotonics, Vol. 11, Issue 4, 046014 (November 2017). https://doi.org/10.1117/1.JNP.11.046014

Abstract

We theoretically investigated detection accuracy (DA) of a surface plasmon resonance (SPR) sensor with a top dielectric layer. The effects of the variation of thickness and the material of the dielectric layer on the DA of the SPR sensor were investigated. The result indicated that adding a top dielectric layer with a small refractive index (less than the refractive index of the analyte) can improve the DA of a traditional SPR sensor. In addition, by comparing the variation law of the DA and the electric field intensity at the analyte–dielectric interface of the SPR sensor, we studied the physical mechanism of DA variation. This study can be helpful for high-performance SPR sensor development.

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Chengyou Lin and Shujing Chen "Theoretical investigation of detection accuracy of surface plasmon resonance sensor with dielectric layer," Journal of Nanophotonics 11(4), 046014 (28 November 2017). https://doi.org/10.1117/1.JNP.11.046014

Received: 9 September 2017; Accepted: 13 November 2017; Published: 28 November 2017

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