共 2 条
Au Microdisk-Size Dependence of Quantum Dot Emission from the Hybrid Metal-Distributed Bragg Reflector Structures Employed for Single Photon Sources
被引:0
|作者:
王海艳
[1
]
苏丹
[1
]
杨爽
[1
]
窦秀明
[1
]
朱海军
[1
]
江德生
[1
]
倪海桥
[1
]
牛智川
[1
]
赵翠兰
[2
]
孙宝权
[1
]
机构:
[1] State Key Laboratory for Superlattices and Microstructure,Institute of Semiconductors,Chinese Academy of Sciences
[2] College of Physics and Electronic Information,Inner Mongolia University for Nationalities
基金:
中国国家自然科学基金;
关键词:
Au Microdisk-Size Dependence of Quantum Dot Emission from the Hybrid Metal-Distributed Bragg Reflector Structures Employed for Single Photon Sources;
DBR;
QDs;
D O I:
暂无
中图分类号:
O471.1 [半导体量子理论];
学科分类号:
070205 ;
080501 ;
0809 ;
080903 ;
摘要:
We investigate metallic microdisk-size dependence of quantum dot(QD) spontaneous emission rate and microantenna directional emission effect for the hybrid metal-distributed Bragg reflector structures based on a particular single QD emission.It is found that the measured photoluminescence(PL) intensity is very sensitive to the size of metallic disk,showing an enhancement factor of 11 when the optimal disk diameter is 2μm and the numerical aperture of microscope objective NA=0.5.It is found that for large metal disks,the Purcell effect is dominant for enhanced PL intensity,whereas for small size disks the main contribution comes from plasmon scattering at the disk edge within the light cone collected by the microscope objective.
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页码:138 / 141
页数:4
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