Tailoring light emission properties of fluorophores by coupling to resonance-tuned metallic nanostructures

被引：75

作者：

Gerber, Sebastian ^{[1
]}

Reil, Frank ^{[1
]}

Hohenester, Ulrich ^{[1
]}

Schlagenhaufen, Thomas ^{[1
]}

Krenn, Joachim R. ^{[1
]}

Leitner, Alfred ^{[1
]}

机构：

[1] Karl Franzens Univ Graz, Inst Phys, A-8010 Graz, Austria

来源：

PHYSICAL REVIEW B | 2007年 / 75卷 / 07期

关键词：

D O I：

10.1103/PhysRevB.75.073404

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report the enhancement of the radiative decay rate of Eu3+ fluorophores by coupling them to nanoscopic gold disks located on a substrate. When the plasmon resonance frequency of the disks coincides with the fluorophore emission frequency, each disk acts as a supplemental antenna for the fluorophore by converting its nonradiative near field into radiating far field, thereby increasing its radiative decay rate dramatically. The radiative rate is measured by time-correlated single-photon counting for resonant and nonresonant metallic nanodisks. Supplementary theoretical model calculations are found to be in remarkably good agreement with the experiment.

引用

页数：4

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