论文标题
基于微腔的全庞加莱梁具有任意天空数量
Microcavity-based Generation of Full Poincaré Beams with Arbitrary Skyrmion Numbers
论文作者
论文摘要
全庞加莱（FP）梁在其横截面中具有所有可能的光旋状状态，这构成了天空的光学类似物。到目前为止，FP梁已仅使用散装光学元件生成。在这里，我们提出了基于光学微孔腔的FP梁的生成方案。我们将两个不同的角光栅以及手性线在微孔腔上放置，并生成FP梁作为具有控制旋转和轨道角动量的两个光束的叠加。我们从数值上表明，可以从该设备生成带有量身定制的天空数量的FP梁，为开发具有独特的光学旋转场的紧凑光源开辟了路线。
A full Poincaré (FP) beam possesses all possible optical spin states in its cross-section, which constitutes an optical analogue of a skyrmion. Until now, FP beams have been exclusively generated using bulk optics. Here, we propose a generation scheme of an FP beam based on an optical microring cavity. We position two different angular gratings along with chiral lines on a microring cavity and generate an FP beam as a superposition of two light beams with controlled spin and orbital angular momenta. We numerically show that FP beams with tailored skyrmion numbers can be generated from this device, opening a route for developing compact light sources with unique optical spin fields.
