Emission characteristics of quantum dots in planar microcavities
Emission characteristics of quantum dots in planar microcavities
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DOI：
10.1103/physrevb.73.205330
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发表时间：
2006-05-01
影响因子：
3.7
通讯作者：
Petroff, P. M.
中科院分区：
文献类型：
--
作者：
Ramon, G.;Mizrahi, U.;Petroff, P. M.
对平面微腔中单量子点的发光特性进行了实验和理论研究。五倍增强的自发辐射外的微腔被发现与腔模式的谐振点，相对于失谐点。利用高功率激发，我们得到了面内腔色散。发射的近场图像显示共振点的几微米的空间分布，其尺寸随着共振的失谐而减小。这些实验结果解释了一个简单而直观的模型。
The emission properties of single quantum dots in planar microcavities are studied experimentally and theoretically. Fivefold enhanced spontaneous emission outside the microcavity is found for dots in resonance with the cavity mode, relative to detuned dots. Using high-power excitation we obtain the in-plane cavity dispersion. Near-field images of the emission show spatial distributions of several micrometers for resonant dots, which decrease in size with the detuning from resonance. These experimental findings are explained using a simple and intuitive model.