论文标题
高度照相稳定的钙钛矿纳米管：基于锥形纳米纤维的集成单光子源
Highly photo-stable Perovskite nanocubes: towards integrated single photon sources based on tapered nanofibers
论文作者
论文摘要
对于量子应用的钙钛矿纳米晶体（NC）（例如CSPBBR $ _3 $）的兴趣正在迅速增加，因为已经证明它们可以表现为非常有效的单个光子发射器。在这种情况下要解决的主要问题是它们在光学激发下的光稳定性。在本文中，我们介绍了用已建立的方法合成的高效钙钛矿纳米容器的光学和量子性能的完整分析，该方法首次使用该方法生产量子发射器，并显示出可提高的光稳定性。这些发射器与强烈的光子抗发射一起表现出减少的眨眼。值得注意的是，这些特征几乎不受激发强度的增加远高于发射饱和水平。最后，我们首次实现了单个钙钛矿纳米管与锥形光学纳米纤维的耦合，以便为将来的应用提供紧凑的集成单光子源。
The interest in perovskite nanocrystals (NCs) such as CsPbBr$_3$ for quantum applications is rapidly raising, as it has been demonstrated that they can behave as very efficient single photon emitters. The main problem to tackle in this context is their photo-stability under optical excitation. In this article, we present a full analysis of the optical and quantum properties of highly efficient perovskite nanocubes synthesized with an established method, which is used for the first time to produce quantum emitters, and is shown to ensure an increased photostability. These emitters exhibit reduced blinking together with a strong photon antibunching. Remarkably these features are hardly affected by the increase of the excitation intensity well above the emission saturation levels. Finally, we achieve for the first time the coupling of a single perovskite nanocube with a tapered optical nanofiber in order to aim for a compact integrated single photon source for future applications.
