Light beams with fractional orbital angular momentum and their vortex structure

被引：203

作者：

Goette, Joerg B. ^{[1
]}

O'Holleran, Kevin ^{[1
]}

Preece, Daryl ^{[1
]}

Flossmann, Florian ^{[1
]}

Franke-Arnold, Sonja ^{[1
]}

Barnett, Stephen M. ^{[2
]}

Padgett, Miles J. ^{[1
]}

机构：

[1] Univ Glasgow, Dept Phys & Astron, SUPA, Glasgow G12 8QQ, Lanark, Scotland

[2] Univ Strathclyde, Dept Phys, SUPA, Glasgow G4 0NG, Lanark, Scotland

来源：

OPTICS EXPRESS | 2008年 / 16卷 / 02期

关键词：

D O I：

10.1364/OE.16.000993

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Light emerging from a spiral phase plate with a non-integer phase step has a complicated vortex structure and is unstable on propagation. We generate light carrying fractional orbital angular momentum (OAM) not with a phase step but by a synthesis of Laguerre-Gaussian modes. By limiting the number of different Gouy phases in the superposition we produce a light beam which is well characterised in terms of its propagation. We believe that their structural stability makes these beams ideal for quantum information processes utilising fractional OAM states. (c) 2008 Optical Society of America.

引用

页码：993 / 1006

页数：14

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