Coupling of quantum-dot light emission with a three-dimensional photonic-crystal nanocavity
Coupling of quantum-dot light emission with a three-dimensional photonic-crystal nanocavity
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DOI：
10.1038/nphoton.2008.202
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发表时间：
2008-11-01
期刊：
影响因子：
35
通讯作者：
Arakawa, Yasuhiko
中科院分区：
文献类型：
--
作者：
Aoki, Kanna;Guimard, Denis;Arakawa, Yasuhiko
我们报道了首次使用三维光子晶体纳米腔和量子点的组合来演示完全受限的电子和光子的耦合。三维光子晶体是通过使用复杂的微操作技术堆叠平面元件来组装的。含有嵌入量子点的点缺陷被引入到光子晶体中作为活性中心。通过测量组件的光致发光光谱，首次展示了从量子点发射的光与三维光子晶体缺陷模的耦合过程。尖锐发射峰的特征与数值模拟结果吻合较好，偏振测量证实了它们是共振模式。获得了三维光子晶体的最高品质因数(Q因子)(2,300)。
We report on the first demonstration of the coupling of fully confined electrons and photons using a combination of three-dimensional photonic crystal nanocavities and quantum dots. The three dimensional photonic crystals were assembled by stacking planar components using a sophisticated micromanipulation technique. Point defects, containing embedded quantum dots, were introduced into the photonic crystals as active sites. By measuring the photoluminescence spectra of the assembly, the process by which light emitted from the quantum dots is coupled to the defect modes of a three dimensional photonic crystal was demonstrated for the first time. The characteristics of the sharp emission peaks agreed well with numerical simulations, and these were confirmed to be resonant modes by polarization measurements. The highest quality factor (Q-factor) for three dimensional photonic crystals (2,300) was achieved.