Purcell factor for a point-like dipolar emitter coupled to a two-dimensional plasmonic waveguide

被引：44

作者：

Barthes, J. ^{[1
]}

Francs, G. Colas des ^{[1
]}

Bouhelier, A. ^{[1
]}

Weeber, J. -C. ^{[1
]}

Dereux, A. ^{[1
]}

机构：

[1] Univ Bourgogne, CNRS, UMR 5209, Lab Interdisciplinaire Carnot Bourgogne, F-21078 Dijon, France

来源：

PHYSICAL REVIEW B | 2011年 / 84卷 / 07期

关键词：

SPONTANEOUS EMISSION; SINGLE-MOLECULE; FLUORESCENCE; MODES; GAIN;

D O I：

10.1103/PhysRevB.84.073403

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We theoretically investigate the spontaneous emission of a point-like dipolar emitter located near a two-dimensional plasmonic waveguide of arbitrary form. We invoke an explicit link with the density of modes of the waveguide describing the electromagnetic channels into which the emitter can couple. We obtain a closed form expression for the coupling to propagative plasmon, extending thus the Purcell factor to plasmonic configurations. Radiative and nonradiative contributions to the spontaneous emission are also discussed in detail.

引用

页数：4

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