Design of plasmonic nanoantennae for enhancing spontaneous emission

被引：234

作者：

Rogobete, Lavinia ^{[1
]}

Kaminski, Franziska ^{[1
]}

Agio, Mario ^{[1
]}

Sandoghdar, Vahid ^{[1
]}

机构：

[1] ETH, Phys Chem Lab, CH-8093 Zurich, Switzerland

来源：

OPTICS LETTERS | 2007年 / 32卷 / 12期

关键词：

D O I：

10.1364/OL.32.001623

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We apply two- and three-dimensional numerical calculations to study optical nanoantennae made of two coupled gold nanostructures, enclosing a single emitter in their gap. We show that, using structures manufacturable with today's nanotechnology, it is possible to increase the radiative decay rate by three orders of magnitude while keeping a quantum efficiency larger than 80% in the near-infrared regime. We examine the competition between the radiative and nonradiative processes in the presence of the antennae as a function of wavelength and antenna geometry. Our results hold great promise for improving the quantum efficiency of poor emitters such as silicon nanocrystals or carbon nanotubes. (c) 2007 Optical Society of America.

引用

页码：1623 / 1625

页数：3

共 24 条

[1] THE INTERACTION BETWEEN ELECTROMAGNETIC RESONANCES AND ITS ROLE IN SPECTROSCOPIC STUDIES OF MOLECULES ADSORBED ON COLLOIDAL PARTICLES OR METAL SPHERES [J].