光的扭曲。

Light's twist.

作者信息

Padgett Miles

机构信息

School of Physics and Astronomy , University of Glasgow , Glasgow G12 8QQ, UK.

出版信息

Proc Math Phys Eng Sci. 2014 Dec 8;470(2172):20140633. doi: 10.1098/rspa.2014.0633.

DOI:10.1098/rspa.2014.0633

PMID:25484612

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4241017/

Abstract

That light travels in straight lines is a statement of the obvious. However, the energy and momentum flow within light beams can twist to form vortices such as eddies in a stream. These twists carry angular momentum, which can make microscopic objects spin, be used to encode extra information in communication systems, enable the design of novel imaging systems and allow new tests of quantum mechanics.

摘要

光沿直线传播是显而易见的事实。然而，光束中的能量和动量流可以发生扭曲，形成诸如溪流中的漩涡那样的涡旋。这些扭曲携带角动量，角动量能使微观物体旋转，可用于在通信系统中编码额外信息，有助于设计新型成像系统，并能进行量子力学的新测试。