Controlling Spontaneous Emission with Plasmonic Optical Patch Antennas

被引：219

作者：

Belacel, C. ^{[1
,2
,3
]}

Habert, B. ^{[4
]}

Bigourdan, F. ^{[4
]}

Marquier, F. ^{[4
]}

Hugonin, J. -P. ^{[4
]}

de Vasconcellos, S. Michaelis ^{[1
]}

Lafosse, X. ^{[1
]}

Coolen, L. ^{[2
,3
]}

Schwob, C. ^{[2
,3
]}

Javaux, C. ^{[5
]}

Dubertret, B. ^{[5
]}

Greffet, J. -J. ^{[4
]}

Senellart, P. ^{[1
]}

Maitre, A. ^{[2
,3
]}

机构：

[1] CNRS, Lab Photon & Nanostruct, UPR20, F-91460 Marcoussis, France

[2] Univ Paris 06, INSP, UMR 7588, F-75015 Paris, France

[3] INSP, CNRS, UMR7588, F-75015 Paris, France

[4] Univ Paris 11, CNRS, Inst Opt, Lab Charles Fabry, F-91127 Palaiseau, France

[5] ESPCI, CNRS, UMR8213, Lab Phys & Etud Mat, F-75231 Paris, France

来源：

NANO LETTERS | 2013年 / 13卷 / 04期

关键词：

Plasmonic antenna; quantum dot; Purcell effect; deterministic positioning; SINGLE-PHOTON EMISSION; QUANTUM-DOT; ROOM-TEMPERATURE; FLUORESCENCE; NANOANTENNA; LIGHT;

D O I：

10.1021/nl3046602

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We experimentally demonstrate the control of the spontaneous emission rate and the radiation pattern of colloidal quantum dots deterministically positioned in a plasmonic patch antenna. The antenna consists of a thin gold microdisk separated from a planar gold layer by a few tens of nanometers thick dielectric layer. The emitters are shown to radiate through the entire patch antenna in a highly directional and vertical radiation pattern. Strong acceleration of spontaneous emission is observed, depending on the antenna geometry. Considering the double dipole structure of the emitters, this corresponds to a Purcell factor up to 80 for dipoles perpendicular to the disk.

引用

页码：1516 / 1521

页数：6

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