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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 22 — Aug. 1, 2013
  • pp: 5327–5341

Ultralightweight deformable mirrors

Keith Patterson and Sergio Pellegrino  »View Author Affiliations


Applied Optics, Vol. 52, Issue 22, pp. 5327-5341 (2013)
http://dx.doi.org/10.1364/AO.52.005327


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Abstract

This paper presents a concept for ultralightweight deformable mirrors, based on a thin substrate of optical surface quality, coated with continuous active layers that provide separate modes of actuation at different length scales. This concept eliminates any kind of stiff backing structure for the mirror surface and exploits microfabrication technologies to provide tight integration of the active materials into the mirror structure, to avoid actuator print-through effects. Proof-of-concept, 10 cm diameter mirrors with an areal density of 0.6kg/m2 have been designed, built, and tested to measure their shape-correction performance and verify the finite-element models used for design. The low-cost manufacturing scheme involves low-temperature processing steps (below 140°C) to minimize residual stresses, does not require precision photolithography, and is therefore scalable to larger diameters depending on application requirements.

© 2013 Optical Society of America

OCIS Codes
(220.1000) Optical design and fabrication : Aberration compensation
(220.4610) Optical design and fabrication : Optical fabrication
(230.2090) Optical devices : Electro-optical devices
(230.4040) Optical devices : Mirrors
(230.4170) Optical devices : Multilayers
(220.1080) Optical design and fabrication : Active or adaptive optics

ToC Category:
Optical Devices

History
Original Manuscript: April 25, 2013
Revised Manuscript: June 27, 2013
Manuscript Accepted: July 1, 2013
Published: July 22, 2013

Citation
Keith Patterson and Sergio Pellegrino, "Ultralightweight deformable mirrors," Appl. Opt. 52, 5327-5341 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-22-5327

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