Two-Level Ultrabright Single Photon Emission from Diamond Nanocrystals

被引：110
作者：
Aharonovich, Igor [1 ]
Castelletto, Stefania [1 ]
Simpson, David A. [2 ]
Stacey, Alastair [1 ]
McCallum, Jeff [1 ]
Greentree, Andrew D. [1 ]
Prawer, Steven [1 ,2 ]
机构：
[1] Univ Melbourne, Sch Phys, Parkville, Vic 3010, Australia
[2] Quantum Commun Victoria, Parkville, Vic 3010, Australia
来源：
NANO LETTERS | 2009年 / 9卷 / 09期
基金：
澳大利亚研究理事会;
关键词：
ROOM-TEMPERATURE; DEFECT CENTER; MOLECULE; CENTERS;
D O I：
10.1021/nl9014167
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The fabrication of stable ultrabright single photon sources operating at room temperature Is reported. The emitter is based on a color center within a diamond nanocrystal grown on a sapphire substrate by chemical vapor deposition method and exhibits a two-level electronic behavior with a maximum measured count rate of 3.2 x 10(6) counts/s at saturation. The emission is centered at similar to 756 nm with a full width at half-maximum similar to 11 nm and an excited state lifetime of 3.7 ns. These unique properties make it a leading candidate for quantum photonics and communication applications as well as for cellular biomarking.
引用
收藏
页码：3191 / 3195
页数：5
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