National Research Council of Canada, Ottawa, Ontario, K1A 0R6, Canada.
Nanotechnology. 2019 Jun 7;30(23):232001. doi: 10.1088/1361-6528/ab0393. Epub 2019 Jan 31.
Sources of quantum light that utilize photonic nanowire designs have emerged as potential candidates for high efficiency non-classical light generation in quantum information processing. In this review we cover the different platforms used to produce nanowire-based sources, highlighting the importance of waveguide design and material properties in achieving optimal performance. The limitations of the sources are identified and routes to optimization are proposed. State-of-the-art nanowire sources are compared to other solid-state quantum emitter platforms with regard to the key metrics of single photon purity, indistinguishability and entangled-pair fidelity to maximally entangled Bell states. We also discuss the unique ability of the nanowire platform to incorporate multiple emitters in the same optical mode and consider potential applications. Finally, routes to on-chip integration are discussed and the challenges facing the development of a nanowire-based scalable architecture are presented.
利用光子纳米线设计的量子光源已经成为量子信息处理中高效率非经典光产生的潜在候选者。在这篇综述中，我们介绍了用于产生基于纳米线光源的不同平台，强调了在实现最佳性能时波导设计和材料特性的重要性。确定了光源的局限性，并提出了优化的途径。将基于纳米线的光源与其他固态量子发射器平台进行了比较，比较的关键指标是单光子纯度、不可分辨性和纠缠对保真度到最大纠缠贝尔态。我们还讨论了纳米线平台将多个发射器集成到同一光学模式中的独特能力，并考虑了潜在的应用。最后，讨论了片上集成的途径，并提出了基于纳米线的可扩展架构发展所面临的挑战。
