论文标题
观察非极化和部分极化光场的几何相
Observation of geometric phase for unpolarized and partially polarized light fields
论文作者
论文摘要
由于其拓扑性质和容错的特性，几何阶段在设计现实世界中的经典和量子域中的应用中起着重要作用。对于经典系统，到目前为止，已经观察到并研究了几何相，仅用于完全极化的光。我们使用干涉测量实验，首次证明了覆盖庞加拉塔氏浆液相的存在，用于覆盖庞加莱球体内所有空空间的状态，即脱糖和部分极化的光场。发现观察到的几何阶段与其完全极化的对应物相同，与理论预测非常吻合。
Geometric phase, owing to its topological nature and properties of fault tolerance, plays an important role in devising real world applications in both classical and quantum domain. For classical systems, geometric phase has been observed and studied so far for fully polarized light only. Using an interferometric experiment we demonstrate, for the first time, the existence of Pancharatnam-Berry phase for states covering all empty space inside the Poincaré sphere namely the unpolarized and partially polarized light fields. The observed geometric phase is found identical to its fully polarized counterpart in excellent agreement with the theoretical predictions.
