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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/5254

Title: Transverse correlation vanishing due to phase aberrations
Authors: Godin, T
Forbes, A
Naidoo, D
Fromager, M
Cagniot, E
Aït-Ameur, K
Keywords: Diffraction
Phase aberration
Lensing effect
Beam divergence
Transverse correlation
Issue Date: Jun-2011
Publisher: Elsevier
Citation: Godin, T, Forbes, A, Naidoo, D et al. 2011. Transverse correlation vanishing due to phase aberrations. Optics Communications, Vol 284, pp 4601-4606
Series/Report no.: Workflow request;7345
Abstract: The concept of transverse correlation vanishing, between the fraction of power contained in the centre and wings of a probe beam, recently introduced [Opt. Commun. 282 (2009) 3854–3858] is important to be considered when measuring the effective focal length of any refractive index profile. When the latter is not parabolic it is shown that the transverse correlation could vanish, and this represents a potential source of error when measuring any lensing effect. The authors propose a low cost set-up (two photodiodes, a pinhole and a stop) able to reveal if the probe beam has monitored a pure or an aberrated lensing effect especially when it is time-dependent.
Description: This is the author’s version of a work that was accepted for publication in Optics Communications. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Optics Communications, Vol 284(23), pp 4601-4606
URI: http://www.sciencedirect.com/science/article/pii/S0030401811006286
ISSN: 0030-4018
Appears in Collections:Laser physics and technology
General science, engineering & technology

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