Optical orbital angular momentum: twisted light and chirality
Optical orbital angular momentum: twisted light and chirality
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DOI：
10.1364/ol.43.000435
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发表时间：
2018-02-01
期刊：
影响因子：
3.6
通讯作者：
Andrews, David L.
中科院分区：
文献类型：
--
作者：
Forbes, Kayn A.;Andrews, David L.
结构光的轨道角动量如何与手征物质结合的问题是一个重新引起人们兴趣的话题。通过考虑电四极跃迁矩，它表明，光束的手性确实可以表现在当地的手征效应，被依赖于拓扑电荷的符号。在吸收的特定情况下，波前结构和偏振的显著相互作用被解决，并且对于具有一定程度的取向顺序的系统和随机取向的系统，确定了行为的明显差异。(C)2018美国光学学会
The question of how the orbital angular momentum of structured light might engage with chiral matter is a topic of resurgent interest. By taking account of electric quadrupole transition moments, it is shown that the handedness of the beam can indeed be exhibited in local chiral effects, being dependent on the sign of the topological charge. In the specific case of absorption, a significant interplay of wavefront structure and polarization is resolved, and clear differences in behavior are identified for systems possessing a degree of orientational order and for those that are randomly oriented. (C) 2018 Optical Society of America