Generation of free-space Laguerre-Gaussian modes at millimetre-wave frequencies by use of a spiral phaseplate

被引：388

作者：

Turnbull, GA

Robertson, DA

Smith, GM

Allen, L

Padgett, MJ

机构：

[1] School of Physics and Astronomy, University of St. Andrews, St. Andrews, Fife, KY16 9SS, North Haugh

来源：

OPTICS COMMUNICATIONS | 1996年 / 127卷 / 4-6期

关键词：

D O I：

10.1016/0030-4018(96)00070-3

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A spiral phaseplate is used at millimetre-wave frequencies to transform a free-space, fundamental Hermite-Gaussian mode into a Laguerre-Gaussian mode with an azimuthal phase component. A ray optics analysis confirms that the Laguerre-Gaussian beam produced has a total angular momentum equivalent to lHBAR per photon.

引用

收藏

页码：183 / 188

页数：6

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