Enhanced localized fluorescence in plasmonic nanoantennae

被引：165

作者：

Bakker, Reuben M. ^{[1
]}

Yuan, Hsiao-Kuan ^{[1
]}

Liu, Zhengtong ^{[1
]}

Drachev, Vladimir P. ^{[1
]}

Kildishev, Alexander V. ^{[1
]}

Shalaev, Vladimir M. ^{[1
]}

Pedersen, Rasmus H. ^{[2
]}

Gresillon, Samuel ^{[3
]}

Boltasseva, Alexandra ^{[4
]}

机构：

[1] Purdue Univ, Birck Nanotechnol Ctr, Sch ECE, W Lafayette, IN 47907 USA

[2] Tech Univ Denmark, MIC, Dept Micro & Nanotechnol, DK-2800 Lyngby, Denmark

[3] Univ Paris 06, CNRS, LPEM, UPRA5, F-75005 Paris, France

[4] Tech Univ Denmark, COM DTU, DK-2800 Lyngby, Denmark

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 04期

关键词：

D O I：

10.1063/1.2836271

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Pairs of gold elliptical nanoparticles form antennae, resonant in the visible. A dye, embedded in a dielectric host, coats the antennae; its emission excites plasmon resonances in the antennae and is enhanced. Far-field excitation of the dye-nanoantenna system shows a wavelength-dependent increase in fluorescence that reaches 100 times enhancement. Near-field excitation shows enhanced fluorescence from a single nanoantenna localized in a subwavelength area of similar to 0.15 mu m(2). The polarization of enhanced emission is along the main antenna axis. These observed experimental results are important for increasing light extraction from emitters localized around antennae and for potential development of a subwavelength sized laser. (C) 2008 American Institute of Physics.

引用

页数：3

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