芯片级光学腔中超低密度胶态铅硫族化物量子点向单量子点近红外腔QED的低温光谱
Cryogenic spectroscopy of ultra-low density colloidal lead chalcogenide quantum dots on chip-scale optical cavities towards single quantum dot near-infrared cavity QED
摘要：
我们提出的证据腔量子电动力学从稀疏密度的强量子限制的Pb-硫族化物纳米晶体（1和10之间）接近单点水平适度高Q介观硅光学腔。在重要的近红外（1500 nm）波长下工作，从器件中观察到大的增强，并实现了QD发射的强烈修改。在77 K下观察到耦合量子点的饱和光谱，突出了量子信息处理的修改后的量子动力学。
英文摘要：
We present evidence of cavity quantum electrodynamics from a sparse density of strongly quantum-confined Pb-chalcogenide nanocrystals (between 1 and 10) approaching single-dot levels on moderately high-Q mesoscopic silicon optical cavities. Operating at important near-infrared (1500-nm) wavelengths, large enhancements are observed from devices and strong modifications of the QD emission are achieved. Saturation spectroscopy of coupled QDs is observed at 77K, highlighting the modified nanocrystal dynamics for quantum information processing.
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