Simultaneous measurement of refractive index and temperature for prism-based surface plasmon resonance sensors | Zendy

Wei Luo | Zendy; Rujing Wang | Zendy; Hairong Li | Zendy; Jieting Kou | Zendy; Xinhua Zeng | Zendy; He Huang | Zendy; Xiaobo Hu | Zendy; Wei Huang | Zendy

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Simultaneous measurement of refractive index and temperature for prism-based surface plasmon resonance sensors

Author(s) -

Wei Luo,

Rujing Wang,

Hairong Li,

Jieting Kou,

Xinhua Zeng,

He Huang,

Xiaobo Hu,

Wei Huang

Publication year - 2019

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.27.000576

Subject(s) - prism , optics , refractive index , materials science , surface plasmon resonance , wavelength , surface plasmon , triangular prism , resonance (particle physics) , ray , plasmon , physics , particle physics , nanoparticle , nanotechnology

A detailed theoretical model is provided to analyze the effects of temperature on prism-based surface plasmon resonance (SPR) sensors, including temperature dependence of the metal and prism. A complete sensitivity matrix simultaneously measures variations in refractive index (RI) and temperatures using measurements at two wavelengths for the angular-interrogation mode, or at two angles of incidence for the wavelength-interrogation mode. Correction of matrix coefficients improves accuracy of the two modes. Validation is performed using a self-designed wavelength SPR system with an adjustable incident angle perform. This method provides a new way to detect the RI and may lead to the better design and fabrication of prism-based SPR sensors.

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