Relaxation time mapping of single quantum dots and substrate background fluorescence

被引：0
|
作者：
E. Pshenay-Severin
I. Mukhin
S. Fasold
R. Geiss
A. Steinbrück
R. Grange
A. Chipouline
T. Pertsch
机构：
[1] Friedrich-Schiller-Universität Jena,Institute of Applied Physics, Abbe Center of Photonics
[2] Australian National University,Nonlinear Physics Center, Research School of Physics and Engineering
[3] St. Petersburg Academic University,undefined
[4] St. Petersburg National Research University of Information Technologies,undefined
[5] Mechanics and Optics,undefined
来源：
JETP Letters | 2015年 / 102卷
关键词：
JETP Letter; Gold Layer; Strong Coupling Regime; Thin Gold Film; Instrument Response Function;
D O I：
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学科分类号：
摘要：
We experimentally investigated the role of background signal in time resolved photoluminescence experiments with single quantum dots on substrates. We show that the background fluorescence signal from thin gold films fabricated by electron-beam evaporation and from Al2O3 layers fabricated by atomic layer deposition have to be taken into consideration in experiments on the single photon level. Though all investigated components can be distinguished by their photoluminescence decay rates, the presence of the background signal prevents the observation of photon antibunching from single quantum dots. Moreover, a single quantum dot acts as a hot spot enabling the plasmon supported fluorescence enhancement of gold.
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页码：161 / 166
页数：5
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