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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
Generating superpositions of higher-order Bessel beams
Optics Express, Volume 17, No. 26, Year 2009
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Description
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. ©2009 Optical Society of America.
Authors & Co-Authors
Vasilyeu, Ruslan
Belarus, Minsk
B. I. Stepanov Institute of Physics
Dudley, Angela
South Africa, Durban
University of Kwazulu-natal
South Africa, Pretoria
The Council for Scientific and Industrial Research
Khilo, Nikolai A.
Belarus, Minsk
B. I. Stepanov Institute of Physics
Forbes, Andrew D.
South Africa, Durban
University of Kwazulu-natal
South Africa, Pretoria
The Council for Scientific and Industrial Research
Statistics
Citations: 154
Authors: 4
Affiliations: 3
Identifiers
Doi:
10.1364/OE.17.023389
e-ISSN:
10944087