Chinese Optics Letters, 2012, 10 (s1): S12401, Published Online: Apr. 17, 2012  

SPR sensor by method of electro-optic phase modulation and polarization interferometry Download: 623次

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Abstract
We propose a surface plasmon resonance (SPR) sensor based on phase modulation and polarization interferometry, both of which provide a refractive index (RI) resolution of the same order as that of SPR sensors of the phase type. And it has a wide dynamic range and insensitivity of RI resolution to the thickness of metal films as that of the intensity type SPR sensors. In this letter, we choose electro-optic (EO) phase modulation instead of the angle modulation. We demonstrate theoretically that with the EO phase modulation, our sensor could provide a better RI resolution.

Xiangliang Chen, Le Liu, Zhiyi Liu, Heng Shi, Suihua Ma, Yonghong He, Jihua Guo. SPR sensor by method of electro-optic phase modulation and polarization interferometry[J]. Chinese Optics Letters, 2012, 10(s1): S12401.

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