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Proceedings Paper

Wavefront correction with a ferrofluid deformable mirror: experimental results and recent developments
Author(s): Denis Brousseau; Ermanno F. Borra; Simon Thibault; Anna M. Ritcey; Jocelyn Parent; Omar Seddiki; Jean-Philippe Déry; Luc Faucher; Julien Vassallo; Azadeh Naderian
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Paper Abstract

We present the research status of a deformable mirror made of a magnetic liquid whose surface is actuated by a triangular array of small current carrying coils. We demonstrate that the mirror can correct a 11 μm low order aberrated wavefront to a residual RMS wavefront error 0.05 μm. Recent developments show that these deformable mirrors can reach a frequency response of several hundred hertz. A new method for linearizing the response of these mirrors is also presented.

Paper Details

Date Published: 14 July 2008
PDF: 6 pages
Proc. SPIE 7015, Adaptive Optics Systems, 70153J (14 July 2008); doi: 10.1117/12.787840
Show Author Affiliations
Denis Brousseau, COPL, Univ. Laval (Canada)
Ermanno F. Borra, COPL, Univ. Laval (Canada)
Simon Thibault, Immervision (Canada)
Anna M. Ritcey, COPL, Univ. Laval (Canada)
Jocelyn Parent, COPL, Univ. Laval (Canada)
Omar Seddiki, COPL, Univ. Laval (Canada)
Jean-Philippe Déry, COPL, Univ. Laval (Canada)
Luc Faucher, COPL, Univ. Laval (Canada)
Julien Vassallo, COPL, Univ. Laval (Canada)
Azadeh Naderian, COPL, Univ. Laval (Canada)

Published in SPIE Proceedings Vol. 7015:
Adaptive Optics Systems
Norbert Hubin; Claire E. Max; Peter L. Wizinowich, Editor(s)

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