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Proceedings Paper

Superpositions of higher-order Bessel beams and nondiffracting speckle fields
Author(s): Angela Dudley; Ruslan Vasilyeu; Andrew Forbes; Nikolai Khilo; Petr Ropot; Vladimir Belyi; Nikolai Kazak
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Paper Abstract

In this paper we present a mechanism for the generation of the superposition of higher-order Bessel beams, which implements a ring slit aperture and spatial light modulator (SLM). Our experimental technique is also adapted to generate nondiffracting speckle fields. We report on illuminating a ring slit aperture with light which has an azimuthal phase dependence, such that the field produced is a superposition of two higher-order Bessel beams. In the case that the phase dependence of the light illuminating the ring slit aperture is random, a nondiffracting speckle field is produced. The experimentally produced fields are in good agreement with those calculated theoretically.

Paper Details

Date Published: 24 August 2009
PDF: 7 pages
Proc. SPIE 7430, Laser Beam Shaping X, 74300A (24 August 2009); doi: 10.1117/12.826884
Show Author Affiliations
Angela Dudley, CSIR National Laser Ctr. (South Africa)
Univ. of KwaZulu-Natal (South Africa)
Ruslan Vasilyeu, B.I. Stepanov Institute of Physics (Belarus)
Andrew Forbes, CSIR National Laser Ctr. (South Africa)
Univ. of KwaZulu-Natal (South Africa)
Nikolai Khilo, B.I. Stepanov Institute of Physics (Belarus)
Petr Ropot, B.I. Stepanov Institute of Physics (Belarus)
Vladimir Belyi, B.I. Stepanov Institute of Physics (Belarus)
Nikolai Kazak, B.I. Stepanov Institute of Physics (Belarus)


Published in SPIE Proceedings Vol. 7430:
Laser Beam Shaping X
Andrew Forbes; Todd E. Lizotte, Editor(s)

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