Fiber-coupled pillar array as a highly pure and stable single-photon source
Fiber-coupled pillar array as a highly pure and stable single-photon source
复制标题
DOI：
10.1063/1.4995225
复制
发表时间：
2017-07
期刊：
影响因子：
--
通讯作者：
S. Odashima;H. Sasakura;H. Nakajima;H. Kumano
中科院分区：
文献类型：
--
作者：
S. Odashima;H. Sasakura;H. Nakajima;H. Kumano
制备了一种高纯度、高稳定的单光子源，它包括一个精心设计的柱子阵列，其中每个柱子只包含几个InAs量子点。该阵列中的纳米柱与光纤端面直接接触，并在液氦浴中冷却。自相关测量表明，该源在测量的激励功率范围内提供的平均$g^{(2)}(0)$值为0.0174。这种光子源和光纤耦合对冷热循环和振动等外部干扰具有很强的抵抗力，具有长期稳定性。
A highly pure and stable single-photon source is prepared that comprises a well-designed pillar array in which each pillar contains only a few InAs quantum dots. A nano-pillar in this array is in direct contact with a fiber end surface and cooled in a liquid-He bath. Auto-correlation measurement shows that this source provides an average $g^{(2)}(0)$ value of 0.0174 in the measured excitation-power range. This photon source and fiber coupling are quite rigid against external disturbances such as cooling-heating cycles and vibration, with long-term stability.