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14 July 2008 Wavefront correction with a ferrofluid deformable mirror: experimental results and recent developments
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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 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 Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Denis Brousseau, Ermanno F. Borra, Simon Thibault, Anna M. Ritcey, Jocelyn Parent, Omar Seddiki, Jean-Philippe Déry, Luc Faucher, Julien Vassallo, and Azadeh Naderian "Wavefront correction with a ferrofluid deformable mirror: experimental results and recent developments", Proc. SPIE 7015, Adaptive Optics Systems, 70153J (14 July 2008); https://doi.org/10.1117/12.787840
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