Single-Photon Emission from a Highly Excited CdTe Quantum Dot

被引:0
作者
Nowak, S. [1 ]
Goryca, M. [1 ]
Kazimierczuk, T. [1 ]
Gaj, J. A. [1 ]
Golnik, A. [1 ]
Kossacki, P. [1 ]
Wojnar, P. [2 ]
Karczewski, G. [2 ]
机构
[1] Univ Warsaw, Inst Expt Phys, PL-00681 Warsaw, Poland
[2] Polish Acad Sci, Inst Phys, PL-02668 Warsaw, Poland
关键词
D O I
10.12693/APhysPolA.114.1273
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Time-resolved correlation measurements were performed to examine the statistics of photon emission from a single quantum dot at high excitation levels. The range of strong powers was determined by the saturation of intensity of excitonic lines. The significant contribution of pulsed background luminescence forced us to sophisticated analysis of the photoluminescence spectra. For quantum dots grown in the Stranski-Krastanov mode, one-photon emission was found to a good approximation. Fluctuation type quantum dots exhibit a significant level of multiphoton emission.
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收藏
页码:1273 / 1278
页数:6
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