Enhancing the Optical Excitation Efficiency of a Single Self-Assembled Quantum Dot with a Plasmonic Nanoantenna
Enhancing the Optical Excitation Efficiency of a Single Self-Assembled Quantum Dot with a Plasmonic Nanoantenna
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DOI：
10.1021/nl102548t
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发表时间：
2010-11-01
期刊：
影响因子：
10.8
通讯作者：
Lippitz, Markus
中科院分区：
文献类型：
--
作者：
Pfeiffer, Markus;Lindfors, Klas;Lippitz, Markus
我们演示了等离子体纳米颗粒的受控定位如何改变单个外延 GaAs 量子点的光致发光。天线粒子导致发光强度增加约 8 倍。光谱和时间分辨光致发光测量证明量子点的激发速率增加。
We demonstrate how the controlled positioning of a plasmonic nanoparticle modifies the photoluminescence of a single epitaxial GaAs quantum dot. The antenna particle leads to an increase of the luminescence intensity by about a factor of 8. Spectrally and temporally resolved photoluminescence measurements prove an increase of the quantum dot's excitation rate.