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arXiv · 0807.2397

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

Denis Brousseau·Ermanno F. Borra·Simon Thibaul·Anna M. Ritcey·Jocelyn Parent·Omar Seddiki·Jean-Philippe Dery·Luc Faucher·Julien Vassallo·Azadeh Naderian
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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 microns low order aberrated wavefront to a residual RMS wavefront error 0.05 microns. 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.

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Denis Brousseau, Ermanno F. Borra, Simon Thibaul, Anna M. Ritcey, Jocelyn Parent, Omar Seddiki, Jean-Philippe Dery, Luc Faucher, Julien Vassallo, Azadeh Naderian. 2008-07-15. Wavefront correction with a ferrofluid deformable mirror: experimental results and recent developments. https://doi.org/10.1117/12.787840

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