Long-Range Surface Plasmon Supported by Asymmetric Bimetallic Structure

被引：7

作者：

Dyankov, Georgi ^{[1
,2
]}

Zekriti, Mohssin ^{[1
,2
,4
]}

Saidi, E. H. ^{[1
,2
,3
,4
]}

Bousmina, Mosto ^{[1
,2
,3
]}

机构：

[1] NANOTECH Inst Nanomat & Nanotechnol, Rabat, Morocco

[2] MAScIR Moroccan Assoc Sci Innovat & Res, Rabat, Morocco

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

[4] Lab UFR Phys Hautes Energies, Fac Sci, Rabat, Morocco

来源：

PLASMONICS | 2012年 / 7卷 / 03期

关键词：

Surface plasmon; Long-range surface plasmon; Bimetallic film; Biochip; METAL-FILMS; THIN; SENSORS; WAVES;

D O I：

10.1007/s11468-012-9332-x

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

With this study, we prove that an asymmetric bimetallic structure can support long-range surface plasmon (LRSP) and propose a procedure for its optimization. By applying different criteria we prove that the plasmon which is supported by the structure is indeed LRSP. Unlike all known asymmetric structures supporting LRSP, our structure provides prism excitation and can be used as a biochip for biosensing. Moreover, we show that the structure supports a plasmon with the same propagation constant as LRSP and which is excited at the interface of metal and buffer. This plasmon can be used as a reference channel providing information for the temperature of the structure.

引用

页码：479 / 485

页数：7

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