DSpace
 

Researchspace >
General science, engineering & technology >
General science, engineering & technology >
General science, engineering & technology >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/6324

Title: Controlling the evolution of nondiffracting speckle by complex amplitude modulation on a phase-only spatial light modulator
Authors: Dudley, A
Vasilyeu, R
Belyi, V
Khilo, N
Ropot, P
Forbes, A
Keywords: Nondiffracting
Speckle field
Bessel beams
Spatial light modulator
Complex amplitude modulation
Issue Date: Sep-2011
Publisher: Elsevier
Citation: Dudley, A, Belyi, V, Khilo, N, Ropot, P and Forbes A. Controlling the evolution of nondiffracting speckle by complex amplitude modulation on a phase-only spatial light modulator. Journal of Optics Communications, vol. 285, pp 5-12
Series/Report no.: Workflow;9623
Abstract: In this work we investigate the structure of nondiffracting speckle fields, both experimentally and theoretically. We are able to produce very good agreement between the experimentally recorded and theoretically calculated fields by using complex amplitude modulation on a phase-only spatial light modulator to implement controlled ring-slit experiments for the generation of nondiffracting speckle fields. The structure of the nondiffracting speckle due to binary and continuous phase modulations for both a uniform and a normal distribution is investigated. We find that we are able to engineer whether the nondiffracting field will appear as speckle or a structured zero-order Bessel beam by adjusting the standard deviation in the distribution. Having the ability to control where in the spectrum, from fully-developed nondiffracting speckle to a symmetric zero-order Bessel beam, the nondiffracting field will exist can prove to be a useful resource in the non-destructive testing of materials.
Description: Copyright: 2011 Elsevier. This is the post-print version of the work. The definitive version is published in the Journal of Optics Communications, vol. 258, pp 5-12
URI: http://www.sciencedirect.com/science/article/pii/S003040181100976X
http://hdl.handle.net/10204/6324
ISSN: 0030-4018
Appears in Collections:Laser physics and technology
General science, engineering & technology

Files in This Item:

File Description SizeFormat
Dudley6_2012.pdf3.83 MBAdobe PDFView/Open
View Statistics

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback