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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 1, Iss. 12 — Dec. 18, 2006

A magnetic liquid deformable mirror for high stroke and low order axially symmetrical aberrations.

Denis Brousseau, Ermanno F. Borra, Hubert Jean-Ruel, Jocelyn Parent, and Anna Ritcey  »View Author Affiliations


Optics Express, Vol. 14, Issue 24, pp. 11486-11493 (2006)
http://dx.doi.org/10.1364/OE.14.011486


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Abstract

We present a new class of magnetically shaped deformable liquid mirrors made of a magnetic liquid (ferrofluid). Deformable liquid mirrors offer advantages with respect to deformable solid mirrors: large deformations, low costs and the possibility of very large mirrors with added aberration control. They have some disadvantages (e.g. slower response time). We made and tested a deformable mirror, producing axially symmetrical wavefront aberrations by applying electric currents to 5 concentric coils made of copper wire wound on aluminum cylinders. Each of these coils generates a magnetic field which combines to deform the surface of a ferrofluid to the desired shape. We have carried out laboratory tests on a 5 cm diameter prototype mirror and demonstrated defocus as well as Seidel and Zernike spherical aberrations having amplitudes up to 20 µm, which was the limiting measurable amplitude of our equipment.

© 2006 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: September 11, 2006
Revised Manuscript: November 13, 2006
Manuscript Accepted: November 14, 2006
Published: November 27, 2006

Virtual Issues
Vol. 1, Iss. 12 Virtual Journal for Biomedical Optics

Citation
Denis Brousseau, Ermanno F. Borra, Hubert Jean-Ruel, Jocelyn Parent, and Anna Ritcey, "A magnetic liquid deformable mirror for high stroke and low order axially symmetrical aberrations," Opt. Express 14, 11486-11493 (2006)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=oe-14-24-11486


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