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Proceedings Article

Wavefront correction with a ferrofluid deformable mirror: experimental results and recent developments

[+] Author Affiliations
Denis Brousseau, Ermanno F. Borra, Anna M. Ritcey, Jocelyn Parent, Omar Seddiki, Jean-Philippe Déry, Luc Faucher, Julien Vassallo, Azadeh Naderian

COPL, Univ. Laval (Canada)

Simon Thibault

Immervision (Canada)

Proc. SPIE 7015, Adaptive Optics Systems, 70153J (July 14, 2008); doi:10.1117/12.787840
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From Conference Volume 7015

  • Adaptive Optics Systems
  • Norbert Hubin; Claire E. Max; Peter L. Wizinowich
  • Marseille, France | June 23, 2008

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.

© (2008) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Denis Brousseau ; Ermanno F. Borra ; Simon Thibault ; Anna M. Ritcey ; Jocelyn Parent, et al.
"Wavefront correction with a ferrofluid deformable mirror: experimental results and recent developments", Proc. SPIE 7015, Adaptive Optics Systems, 70153J (July 14, 2008); doi:10.1117/12.787840; http://dx.doi.org/10.1117/12.787840


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