探测来自天体的电磁波中光学涡旋轨道角动量的方法。

Method for probing the orbital angular momentum of optical vortices in electromagnetic waves from astronomical objects.

作者信息

Berkhout Gregorius C G, Beijersbergen Marco W

机构信息

Huygens Laboratory, Leiden University, P.O. Box 9504, 2300 RA Leiden, The Netherlands.

出版信息

Phys Rev Lett. 2008 Sep 5;101(10):100801. doi: 10.1103/PhysRevLett.101.100801.

DOI:10.1103/PhysRevLett.101.100801

PMID:18851201

Abstract

We present an efficient method for probing the orbital angular momentum of optical vortices of arbitrary sizes. This method, based on a multipoint interferometer, has its most important application in measuring the orbital angular momentum of light from astronomical sources, opening the way to interesting new astrophysics. We demonstrate its viability by measuring the orbital angular momentum of Laguerre-Gaussian laser beams.

摘要

我们提出了一种用于探测任意尺寸光学涡旋轨道角动量的有效方法。这种基于多点干涉仪的方法在测量来自天体源的光的轨道角动量方面具有最重要的应用，为有趣的新天体物理学开辟了道路。我们通过测量拉盖尔 - 高斯激光束的轨道角动量来证明其可行性。