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A Shack-Hartmann wavefront sensor projected on to the sky with reduced focal anisoplanatism.

Butterley, T. and Love, G. D. and Wilson, R. W. and Myers, R. M. and Morris, T. J. (2006) 'A Shack-Hartmann wavefront sensor projected on to the sky with reduced focal anisoplanatism.', Monthly notices of the Royal Astronomical Society., 368 (2). pp. 837-843.


A method for producing a laser guide star wavefront sensor for adaptive optics with reduced focal anisoplanatism is presented. A theoretical analysis and numerical simulations have been carried out and the results are presented. The technique, named Sky-Projected Laser Array Shack–Hartmann (SPLASH), is shown to suffer considerably less from focal anisoplanatism than a conventional laser guide star system. The method is potentially suitable for large telescope apertures (8 m), and possibly for extremely large telescopes.

Item Type:Article
Keywords:Instrumentation, Adaptive optics, Telescopes.
Full text:PDF - Other (393Kb)
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Publisher statement:The definitive version is available at
Record Created:02 May 2008
Last Modified:16 Aug 2011 09:26

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