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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/3755

Title: Superpositions of higher-order bessel beams and nondiffracting speckle fields
Authors: Dudley, A
Vasilyeu, R
Forbes, A
Khilo, N
Ropot, P
Belyi, V
Kazak, N
Keywords: Bessel beams
Higher-order bessel beams
Nondiffracting speckle fields
Spatial light modulator
Ring slit aperture
Computer generated holograms
Laser beam
Optics
Issue Date: Aug-2009
Publisher: Society of Photo-Optical Instrumentation Engineers (SPIE)
Citation: Dudley, A, Vasilyeu, R, Forbes, A et al. 2009. Superpositions of higher-order bessel beams and nondiffracting speckle fields. Laser Beam Shaping X Conference, San Diego, USA, 3-4 August 2009, pp 74300A-1-74300A-7
Abstract: This paper presents a mechanism for the generation of the superposition of higher-order Bessel beams, which implements a ring slit aperture and spatial light modulator (SLM). The experimental technique is also adapted to generate nondiffracting speckle fields. The paper reports 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.
Description: Copyright: 2009. Society of Photo-Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
URI: http://hdl.handle.net/10204/3755
ISBN: 978-1-55752-878-0
Appears in Collections:Laser physics and technology
Laser materials processing
General science, engineering & technology

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