OSA's Digital Library

Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 53, Iss. 22 — Aug. 1, 2014
  • pp: 4903–4909

Modal dynamics of magnetic-liquid deformable mirrors

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

Applied Optics, Vol. 53, Issue 22, pp. 4903-4909 (2014)

View Full Text Article

Enhanced HTML    Acrobat PDF (1005 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



Magnetic-liquid deformable mirrors (MLDMs) were introduced by our group in 2004 and numerous developments have been made since then. The usefulness of this type of mirror in various applications has already been shown, but experimental data on their dynamics are still lacking. A complete theoretical modeling of MLDM dynamics is a complex task because it requires an approach based on magnetohydrodynamics. A purpose of this paper is to present and analyze new experimental data of the dynamics of these mirrors from open-loop step response measurements and show that a basic transfer function modeling is adequate to achieve closed-loop control. Also, experimental data on the eigenmodes dynamic is presented and a modal-based control approach is suggested.

© 2014 Optical Society of America

OCIS Codes
(230.4040) Optical devices : Mirrors
(220.1080) Optical design and fabrication : Active or adaptive optics

ToC Category:
Optical Devices

Original Manuscript: April 3, 2014
Revised Manuscript: June 20, 2014
Manuscript Accepted: June 20, 2014
Published: July 23, 2014

Denis Brousseau, Simon Thibault, Ermanno F. Borra, and Simon F. Boivin, "Modal dynamics of magnetic-liquid deformable mirrors," Appl. Opt. 53, 4903-4909 (2014)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. E. S. ten Have and G. Vdovin, “Characterization and closed-loop performance of a liquid mirror adaptive optical system,” Appl. Opt. 51, 2155–2163 (2012). [CrossRef]
  2. D. Brousseau, E. F. Borra, and S. Thibault, “Wavefront correction with a 37-actuator ferrofluid deformable mirror,” Opt. Express 15, 18190–18199 (2007). [CrossRef]
  3. A. Iqbal and F. B. Amara, “Modeling of a magnetic-fluid deformable mirror for retinal imaging adaptive optics systems,” Int. J. Optomechatron. 1, 180–208 (2007). [CrossRef]
  4. D. Brousseau, E. F. Borra, M. Rochette, and D. Bouffard-Landry, “Linearization of the response of a 91-actuator magnetic liquid deformable mirror,” Opt. Express 18, 8239–8250 (2010). [CrossRef]
  5. D. Brousseau, J. Drapeau, M. Piché, and E. F. Borra, “Generation of Bessel beams using a magnetic liquid deformable mirror,” Appl. Opt. 50, 4005–4010 (2011). [CrossRef]
  6. S. Thibault, D. Brousseau, and E. F. Borra, “Liquid deformable mirror for advanced sub-optical system testing,” Proc. SPIE 7739, 773910 (2010). [CrossRef]
  7. J. Parent, E. F. Borra, D. Brousseau, A. M. Ritcey, J.-P. Déry, and S. Thibault, “Dynamic response of ferrofluidic deformable mirrors,” Appl. Opt. 48, 1–6 (2009). [CrossRef]
  8. J. Clerk-Maxwell, Treatise on Electricity and Magnetism (Clarendon, 1873).
  9. F. Boyer and E. Falcon, “Wave turbulence on the surface of a ferrofluid in a magnetic field,” Phys. Rev. Lett. 101, 244502 (2008). [CrossRef]
  10. A. Visioli, Practical PID Control (Springer, 2006).
  11. T. Ruppel, “Model-based feed forward control of large deformable mirrors,” Eur. J. Control 3, 261–272 (2011).

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited