论文标题
带有MEMS扫描镜的冷原子塑形
Cold-atom shaping with MEMS scanning mirrors
论文作者
论文摘要
我们证明了微机械系统（MEMS）扫描镜作为磁光陷阱中超冷原子的局部光学泵送的活动元素的整合。一对MEMS反映了一个集中的谐振光束，通过\ textit {f} = 1的\ textSuperscript {87} rb的固定在\ textit {f} = 1个地面的原子云中，用于原子云的空间选择性荧光。通过沿冷原子集合的成像轴形成几何模式来证明二维控制。用微型镜对对原子集合的这种控制可以在单个原子选择，局部光学泵送和任意云层中找到应用。这种方法具有微型化和创建用于量子光学实验的便携式控制系统的重要潜力。
We demonstrate the integration of micro-electro-mechanical-systems (MEMS) scanning mirrors as active elements for the local optical pumping of ultra-cold atoms in a magneto-optical trap. A pair of MEMS mirrors steer a focused resonant beam through a cloud of trapped atoms shelved in the \textit{F}=1 ground-state of \textsuperscript{87}Rb for spatially-selective fluorescence of the atom cloud. Two-dimensional control is demonstrated by forming geometrical patterns along the imaging axis of the cold atom ensemble. Such control of the atomic ensemble with a microfabricated mirror pair could find applications in single atom selection, local optical pumping and arbitrary cloud shaping. This approach has significant potential for miniaturisation and in creating portable control systems for quantum optic experiments.
