标题： 从拓扑缺陷生成光学涡旋 显示英文标题

标题： Generation of optical vorticity from topological defects

摘要： 研究了电磁波在具有螺旋位错的介质中的传播。 采用微分形式的形式主义，表明扭曲导致了量子化模式。 此外，证明了由此获得的模式具有明确的轨道角动量，这为设计基于液晶的光镊提供了可能性。 显示英文摘要

摘要： The propagation of an electromagnetic wave in a medium with a screw dislocation is studied. Adopting the formalism of differential forms, it is shown that torsion is responsible for quantized modes. Moreover, it is demonstrated that the modes thus obtained have well defined orbital angular momentum, opening the possibility to design liquid-crystal-based optical tweezers.