Optically interfacing a single atom tweezer array for quantum photonics

在2022财政年度，我们已经建立了在单个光镊中捕获单个原子的实验装置。我们已经开发了软件控制的多频射频信号产生，用于创建镊子阵列。我们已经建立了具有>98%透射率的300 nm直径纳米纤维的可重复制造。我们建立了利用飞秒激光烧蚀制备双折射腔的实验装置，并采用不同的方法研究了等离子体激元对双折射腔自发辐射的增强作用，从而产生明亮的偏振单光子发射，并进入光纤导模。

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.