Laser system for high-resolution spectroscopy of quantum gases of ultracold atoms

应用激光系统对超冷原子量子气体进行拉曼光谱分析。科学目标是探测光学晶格中超冷原子的复杂量子态，例如，具有远程磁序的态或具有特殊拓扑性质的态。光谱学应该在能量和动量两方面都有很高的分辨率，并具有额外的高空间分辨率，以便对激发进行精确的表征。为此，我们打算使用满足所有要求的双光子拉曼跃迁，并且我们申请了一个激光系统，两个锁相激光器进行拟议的实验。

We apply for a laser system for conducting Raman spectrocopy of quantum gases of ultracold atoms. The scientific goal is the detection of complex quantum states of ultracold atoms in optical lattices, for example, of states with long-range magnetic order or states with special topological properties. The spectroscopy should be highly resolved in both energy and momentum with additional high spatial resolution in order to allow for a precise characterization of the excitations. To this end, we intend to use two-photon Raman transitions, which fulfil all requirements, and we apply for a laser system to two phase-locked lasers to conduct the proposed Experiments.