Coupling and single-photon purity of a quantum dot-cavity system studied using hydrostatic pressure
Coupling and single-photon purity of a quantum dot-cavity system studied using hydrostatic pressure
复制标题
使用静水压力研究量子点腔系统的耦合和单光子纯度
DOI：
10.1063/1.4905246
复制
发表时间：
2015
影响因子：
3.2
通讯作者：
Sun B. Q.
中科院分区：
文献类型：
--
作者：
Zhou P. Y.;Wu X. F.;Ding K.;Dou X. M.;Zha G. W.;Ni H. Q.;Niu Z. C.;Zhu H. J.;Jiang D. S.;Zhao C. L.;Sun B. Q.
我们提出了一种方法来调整单个半导体量子点（QD）的发射，以使用静水压力与平面腔耦合，而不会在测量过程中引起温度变化。基于这种方法，我们研究了腔模式对 InAs/GaAs 量子点单光子纯度的影响。我们的测量表明，当 QD 发射与腔模式共振时，单光子纯度会降低。平面型腔的这种负面影响主要是由型腔补料效应造成的。
We propose an approach to tune the emission of a single semiconductor quantum dot (QD) to couple with a planar cavity using hydrostatic pressure without inducing temperature variation during the process of measurement. Based on this approach, we studied the influence of cavity mode on the single-photon purity of an InAs/GaAs QD. Our measurement demonstrates that the single-photon purity degrades when the QD emission resonates with the cavity mode. This negative influence of the planar cavity is mainly caused by the cavity feeding effect.