基于强度的使用纳米孔矩形阵列的表面等离子体共振传感器。

Intensity based surface plasmon resonance sensor using a nanohole rectangular array.

作者信息

Blanchard-Dionne A-P, Guyot L, Patskovsky S, Gordon R, Meunier M

机构信息

Department Engineering Physics, Laser Processing and Plasmonics Laboratory, École Polytechnique de Montréal, CP 6079, succ Centre-Ville, Montréal, Québec H3C 3A7, Canada.

出版信息

Opt Express. 2011 Aug 1;19(16):15041-6. doi: 10.1364/OE.19.015041.

DOI:10.1364/OE.19.015041

PMID:21934865

Abstract

We show high resolution measurements of a surface plasmon resonance (SPR) sensor based on a rectangular nanohole array in a metal film. This SPR setup uses balanced intensity detection between two orthogonal polarizations of a He-Ne laser beam, which allows for sensitivity improvement, noise reduction and rejection of any uncorrelated variation in the intensity signal. A bulk sensitivity resolution of 6.4 x 10(-6) RIU is demonstrated. The proposed methodology is promising for applications in portable nanoplasmonic multisensing and imaging.

摘要

我们展示了基于金属薄膜中矩形纳米孔阵列的表面等离子体共振（SPR）传感器的高分辨率测量结果。这种SPR装置采用了He-Ne激光束两个正交偏振之间的平衡强度检测，这有助于提高灵敏度、降低噪声并抑制强度信号中任何不相关的变化。展示了6.4×10^(-6) RIU的体灵敏度分辨率。所提出的方法在便携式纳米等离子体多传感和成像应用中具有广阔前景。