Optically interfacing a single atom tweezer array for quantum photonics

在FY2022，我们已经建立了在单个光镊中捕获单个原子的实验装置。我们开发了软件控制的多音射频信号生成，用于创建一系列镊子。我们已经建立了300纳米直径的可重复制造纳米纤维，其透射率为>98%。建立了飞秒激光烧蚀制备纳米纤维腔的实验装置。在不同的方法中，我们还研究并证明了纳米纤维上自发发射的强等离子体增强导致明亮和偏振的单光子发射到光纤引导模式。

In FY2022, we have built the experimental apparatus for trapping single atoms in a single optical tweezer. We have developed software controlled multitone RF-signal generation for creating an array of tweezers.We have established reproducible fabrication of 300 nm diameter nanofibers with >98% transmission. We have built the experimental apparatus for fabrication of nanofiber cavities using femtosecond laser ablation.In a different approach, we have also investigated and demonstrated strong plasmonic enhancement of spontaneous emission on nanofiber leading to bright and polarized single photon emission into fiber guided modes.