Single quantum dot coupled to a scanning optical antenna: A tunable superemitter

被引：543

作者：

Farahani, JN ^{[1
]}

Pohl, DW ^{[1
]}

Eisler, HJ ^{[1
]}

Hecht, B ^{[1
]}

机构：

[1] Univ Basel, Inst Phys, Natl Ctr Competence Res Nanoscale Sci, Nanoopt Grp, CH-4056 Basel, Switzerland

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.95.017402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The interaction of a single quantum dot with a bowtie antenna is demonstrated for visible light. The antenna is generated at the apex of a Si3N4 atomic force microscopy tip by focused ion beam milling. When scanned over the quantum dot, its photoluminescence is enhanced while its excited-state lifetime is decreased. Our observations demonstrate that the relaxation channels of a single quantum emitter can be controlled by coupling to an efficiently radiating metallic nanoantenna.

引用

页数：4

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