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Ordered systems of site-controlled pyramidal quantum dots incorporated in photonic crystal cavities

机译:纳入光子晶体腔中的有序控制的金字塔形量子点的有序系统

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摘要

The coupling of a prescribed number of site-controlled pyramidal quantum dots (QDs) with photonic crystal (PhC) cavities was studied by polarization and power-dependent photoluminescence measurements. The energy of the cavity mode could be readily tuned, making use of the high spectral uniformity of the QDs and designing PhC cavities with different hole radii. Efficient coupling of the PhC cavity modes both to the ground state and to the excited state transitions of the QDs was observed, whereas no evidence for far off-resonant coupling was found.
机译:通过偏振和与功率有关的光致发光测量研究了规定数量的定点控制的锥体量子点(QD)与光子晶体(PhC)腔的耦合。利用量子点的高光谱均匀性并设计具有不同孔半径的PhC腔,可以很容易地调整腔模的能量。可以观察到PhC腔模与QD的基态和激发态跃迁的有效耦合,而没有发现远共振共振耦合的证据。

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