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Proceedings Paper

Simple implementation of phase screens for repeatable seeing generation
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Paper Abstract

The paper reports about some laboratory test aimed to investigate the behavior of CD-ROM cover as phase screens to introduce repeatable turbulence in laboratory optical set-up. Several kinds of devices have been studied to this purposes, however the approach described in this paper requires a very simple and low cost implementation. Briefly the characteristic of some CD-ROM covers as phase screens have been measured in lab. First the overall phase disturbance is quantified and the turbulence power as a function of the pupil size in the screen is evaluated. Then we report the statistical distribution of Zernike polynomials variance as a function of pupil dimension. Finally the temporal power spectral density for several Zernike polynomials is computed considering that the phase screens are rotated to achieve temporal evolution.

Paper Details

Date Published: 25 October 2004
PDF: 7 pages
Proc. SPIE 5490, Advancements in Adaptive Optics, (25 October 2004); doi: 10.1117/12.551964
Show Author Affiliations
Enrico Pinna, INAF, Osservatorio Astrofisico di Arcetri (Italy)
Alfio T. Puglisi, INAF, Osservatorio Astrofisico di Arcetri (Italy)
Simone Esposito, INAF, Osservatorio Astrofisico di Arcetri (Italy)
Andrea Tozzi, INAF, Osservatorio Astrofisico di Arcetri (Italy)
Alexander V. Goncharov, National Univ. of Ireland/Galway (Ireland)

Published in SPIE Proceedings Vol. 5490:
Advancements in Adaptive Optics
Domenico Bonaccini Calia; Brent L. Ellerbroek; Roberto Ragazzoni, Editor(s)

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