Local excitation of strongly coupled exciton-surface plasmons polaritons by a single nanoantenna

被引：12

作者：

Eizner, E. ^{[1
]}

Ellenbogen, T. ^{[1
]}

机构：

[1] Tel Aviv Univ, Fleischman Fac Engn, Dept Phys Elect, IL-69978 Tel Aviv, Israel

来源：

APPLIED PHYSICS LETTERS | 2014年 / 104卷 / 22期

关键词：

SEMICONDUCTOR MICROCAVITY; SCATTERING; CONDENSATION; NANOWIRE; DYNAMICS; OPTICS; LIGHT;

D O I：

10.1063/1.4881717

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We demonstrate experimentally local coupling of light from free space to exciton-surface plasmon polaritons (X-SPPs). This is achieved by using a single, sub-wavelength gold nanowire on top of a thin silver film which is covered with a 30 nm thick layer of J-aggregating dyes in polyvinyl alcohol. We show that the nanowire acts as an antenna that resonantly scatters light to X-SPPs states with a Rabi splitting of 0.1 eV. The locally excited X-SPPs properties are studied by angle resolved spectroscopy of the far-field leaky photons and are compared to the large-scale response through Kretschmann reflection measurements and to theoretical calculations. The nanowire scattering properties are studied by dark-field scattering measurements and finite-difference time-domain simulations. This method to locally excite X-SPPs can potentially be useful for future applications of hybrid light matter states. (C) 2014 AIP Publishing LLC.

引用

页数：5

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