Growth scheme for quantum dots with low fine structure splitting at telecom wavelengths
Growth scheme for quantum dots with low fine structure splitting at telecom wavelengths
复制标题
电信波长下具有低精细结构分裂的量子点生长方案
DOI：
10.1109/cleoe-eqec.2017.8087427
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Muller T
中科院分区：
文献类型：
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作者：
Muller T
基于InAs/InP的量子点有望提供波长适合于1550 nm左右的传统电信窗口的纠缠光子[1]。这使得它们注定要在基于现有光纤基础设施的未来量子网络应用中使用。有效产生这种纠缠光子的先决条件是量子点激子本征态中的小精细结构分裂（FSS）[2]，以及将点集成到光子结构中以增强和引导其发射的能力。使用光学光谱，我们表明，基于液滴外延的生长策略可以同时解决这两个问题。
Quantum dots based on InAs/InP hold the promise to deliver entangled photons with wavelength suitable for the conventional telecom window around 1550 nm [1]. This makes them predestined to be used in future quantum networks applications based on existing fiber optics infrastructure. A prerequisite for the efficient generation of such entangled photons is a small fine structure splitting (FSS) in the quantum dot excitonic eigenstates [2], as well as the ability to integrate the dot into photonic structures to enhance and direct its emission. Using optical spectroscopy, we show that a growth strategy based on droplet epitaxy can simultaneously address both issues.