论文标题
轨道角动量由于模式干扰
Orbital angular momentum due to modes interference
论文作者
论文摘要
我们提出了使用标量电势计算不变光束的轨道角动量的广义表达式。可以将溶液分为横向电气TE,横向磁TM和横向电磁TE/TM极化模式。我们表明,非顺式矢量梁与轴向对称性的叠加可以提供良好的轨道角动量,并且模式叠加会影响角动量通量密度。结果进行了说明并分析了贝塞尔束。
We present generalized expressions to calculate the orbital angular momentum for invariant beams using scalars potentials. The solutions can be separated into transversal electric TE, transversal magnetic TM and transversal electromagnetic TE/TM polarization modes. We show that the superposition of non-paraxial vectorial beams with axial symmetry can provide a well defined orbital angular momentum and that the modes superposition affects the angular momentum flux density. The results are illustrated and analyzed for Bessel beams.