Position controlled nanowires for infrared single photon emission
Position controlled nanowires for infrared single photon emission
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DOI：
10.1063/1.3506499
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发表时间：
2010-10-25
影响因子：
4
通讯作者：
Suemune, I.
中科院分区：
文献类型：
--
作者：
Dorenbos, S. N.;Sasakura, H.;Suemune, I.
我们报告了红外中单光子和级联光子对发射的实验演示，这些发射源自嵌入直立 InP 纳米线中的单个 InAsP 量子点。通过在电子束图案化基板上外延生长来制造规则的纳米线阵列。在单个量子点上拍摄的光致发光光谱显示出窄发射线。超导单光子探测器比红外雪崩光电二极管具有更高的灵敏度，使我们能够测量自相关和互相关。观察到明显的反聚束 [g((2))(0) = 0.12]，我们展示了双激子-激子级联，可用于创建纠缠光子对。 (C) 2010 年美国物理研究所。 [doi:10.1063/1.3506499]
We report the experimental demonstration of single-photon and cascaded photon pair emission in the infrared, originating from a single InAsP quantum dot embedded in a standing InP nanowire. A regular array of nanowires is fabricated by epitaxial growth on an electron-beam patterned substrate. Photoluminescence spectra taken on single quantum dots show narrow emission lines. Superconducting single photon detectors, which have a higher sensitivity than avalanche photodiodes in the infrared, enable us to measure auto and cross correlations. Clear antibunching is observed [g((2))(0) = 0.12] and we show a biexciton-exciton cascade, which can be used to create entangled photon pairs. (C) 2010 American Institute of Physics. [doi:10.1063/1.3506499]