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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 26 — Dec. 24, 2007
  • pp: 18190–18199

Wavefront correction with a 37-actuator ferrofluid deformable mirror

Denis Brousseau, Ermanno F. Borra, and Simon Thibault  »View Author Affiliations


Optics Express, Vol. 15, Issue 26, pp. 18190-18199 (2007)
http://dx.doi.org/10.1364/OE.15.018190


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Abstract

This paper discusses an innovative low-cost deformable mirror made of a magnetic liquid (ferrofluid) whose surface is actuated by an hexagonal array of small current carrying coils. Predicted and experimental performances of a 37-actuator ferrofluid deformable mirror are presented along with wavefront correction examples. We show the validity of the model used to compute the actuators currents to obtain a desired wavefront shape. We demonstrate that the ferrofluid deformable mirror can correct a 11 µm low order aberrated wavefront to a residual RMS error of 0.05 µm corresponding to a Strehl ratio of 0.82.

© 2007 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(220.1000) Optical design and fabrication : Aberration compensation
(220.4840) Optical design and fabrication : Testing

ToC Category:
Adaptive Optics

History
Original Manuscript: November 7, 2007
Revised Manuscript: December 14, 2007
Manuscript Accepted: December 15, 2007
Published: December 19, 2007

Citation
Denis Brousseau, Ermanno F. Borra, and Simon Thibault, "Wavefront correction with a 37-actuator ferrofluid deformable mirror," Opt. Express 15, 18190-18199 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-26-18190


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