论文标题
将光与近一集光腔的高阶横向模式耦合
Coupling Light to Higher Order Transverse Modes of a Near-Concentric Optical Cavity
论文作者
论文摘要
近乎浓度状态的光腔具有接近脱位的横向模式；在这种制度中，紧密的聚焦横向模式使原子与原子相结合。这些功能提供了一个有趣的平台，可以探索原子和光之间的多模式相互作用。在这里，我们使用空间照明调制器（SLM）来塑造传入光束的相位，以匹配接近浓缩光腔的几种Laguerre-Gaussian（LG）模式。我们证明了耦合效率接近单个LG模式的理论预测和它们明确的组合，这主要受腔对齐中的缺陷限制。
Optical cavities in the near-concentric regime have near-degenerate transverse modes; the tight focusing transverse modes in this regime enable strong coupling with atoms. These features provide an interesting platform to explore multi-mode interaction between atoms and light. Here, we use a spatial light modulator (SLM) to shape the phase of an incoming light beam to match several Laguerre-Gaussian (LG) modes of a near-concentric optical cavity. We demonstrate coupling efficiency close to the theoretical prediction for single LG modes and well-defined combinations of them, limited mainly by imperfections in the cavity alignment.
