Dual-mode surface-plasmon sensor based on bimetallic film

被引：25

作者：

Dyankov, G. ^{[1
]}

Zekriti, M. ^{[1
,3
]}

Bousmina, M. ^{[1
,2
]}

机构：

[1] MAScIR, Inst Nanomaterials & Nanotechnol, Rabat 10100, Morocco

[2] Hassan II Acad Sci & Technol, Rabat, Morocco

[3] Fac Sci Rabat, Lab UFB Phys Sci Hautes Energies, Rabat, Morocco

来源：

APPLIED OPTICS | 2012年 / 51卷 / 13期

关键词：

RESONANCE BIOSENSOR; WAVE-GUIDE; LONG-RANGE; ENHANCEMENT; EXCITATION;

D O I：

10.1364/AO.51.002451

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a plasmonic structure, based on a silver-gold two-layered metallic film, where two surface plasmons (SPs) with equal propagation constants are excited simultaneously at different wavelengths. We show theoretically that the bimetallic film provides unique opportunities for manipulation of plasmons and optimization of the accuracy and cross-sensitivity. The structure can be used as an effective self-reference SP sensor in wavelength-interrogated design. (C) 2012 Optical Society of America

引用

页码：2451 / 2456

页数：6

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