Coupling dielectric waveguide modes to surface plasmon polaritons

被引：55

作者：

Ditlbacher, H. ^{[1
]}

Galler, N. ^{[1
]}

Koller, D. M. ^{[1
]}

Hohenau, A. ^{[1
]}

Leitner, A. ^{[1
]}

Aussenegg, F. R. ^{[1
]}

Krenn, J. R. ^{[1
]}

机构：

[1] Karl Franzens Univ & Erwin Schrodinger, Inst Nanoscale Res, A-8010 Graz, Austria

来源：

OPTICS EXPRESS | 2008年 / 16卷 / 14期

关键词：

D O I：

10.1364/OE.16.010455

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study dielectric/metal thin film multilayers designed for the coupling of dielectric waveguide modes and surface plasmons. The coupling as identified in calculated dispersion relations for extended multilayers is confirmed by measured angle-resolved reflectance data. By lateral structuring of the multilayers the mutual coupling of dielectric and plasmonic modes is directly observed by fluorescence based microscopy. For a light wavelength of 514nm we find a coupling length of 15 mu m. Our results highlight the potential of hybrid dielectric/metal waveguides for integrating surface plasmon based photonic circuitry or sensing elements into conventional optical devices. (c) 2008 Optical Society of America.

引用

页码：10455 / 10464

页数：10

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