Generating superpositions of higher-order Bessel beams

被引：171
|
作者：
Vasilyeu, Ruslan [1 ]
Dudley, Angela [2 ,3 ]
Khilo, Nikolai [1 ]
Forbes, Andrew [2 ,3 ]
机构：
[1] NAS Belarus, BI Stepanov Phys Inst, Minsk 220072, BELARUS
[2] Univ KwaZulu Natal, Sch Phys, ZA-4000 Durban, South Africa
[3] CSIR, Natl Laser Ctr, ZA-0001 Pretoria, South Africa
来源：
OPTICS EXPRESS | 2009年 / 17卷 / 26期
基金：
新加坡国家研究基金会;
关键词：
NONDIFFRACTING BEAMS;
D O I：
10.1364/OE.17.023389
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report the first experimental generation of the superposition of higher-order Bessel beams, by means of a spatial light modulator (SLM) and a ring slit aperture. We present illuminating a ring slit aperture with light which has an azimuthal phase dependence, such that the field produced is a superposition of two or more higher-order Bessel beams. The experimentally produced fields are in good agreement with those calculated theoretically. The significance of these fields is that even though one is able to generate fields which carry zero orbital angular momentum, a rotation in the field's intensity profile as it propagates is observed. (C) 2009 Optical Society of America
引用
收藏
页码：23389 / 23395
页数：7
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