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Proceedings Paper

MEMS actuated deformable mirror
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Paper Abstract

This ongoing work concerns the creation of a deformable mirror by the integration of MEMS actuators with Nanolaminate foils through metal compression boning. These mirrors will use the advantages of these disparate technologies to achieve dense actuation of a high-quality, continuous mirror surface. They will enable advanced adaptive optics systems in large terrestrial telescopes. While MEMS actuators provide very dense actuation with high precision they can not provide large forces typically necessary to deform conventional mirror surfaces. Nanolaminate foils can be fabricated with very high surface quality while their extraordinary mechanical properties enable very thin, flexible foils to survive the rigors of fabrication. Precise metal compression bonding allows the attachment of the fragile MEMS actuators to the thin nanolaminate foils without creating distortions at the bond sites. This paper will describe work in four major areas: 1) modeling and design, 2) bonding development, 3) nanolaminate foil development, 4) producing a prototype. A first-principles analytical model was created and used to determine the design parameters. A method of bonding was determined that is both strong, and minimizes the localized deformation or print through. Work has also been done to produce nanolaminate foils that are sufficiently thin, flexible and flat to be deformed by the MEMS actuators. Finally a prototype was produced by bonding thin, flexible nanolaminate foils to commercially available MEMS actuators.

Paper Details

Date Published: 23 January 2006
PDF: 10 pages
Proc. SPIE 6113, MEMS/MOEMS Components and Their Applications III, 61130P (23 January 2006); doi: 10.1117/12.657667
Show Author Affiliations
Alexandros Papavasiliou, Lawrence Livermore National Lab. (United States)
Scot Olivier, Lawrence Livermore National Lab. (United States)
Troy Barbee, Lawrence Livermore National Lab. (United States)
Chris Walton, Lawrence Livermore National Lab. (United States)
Michael Cohn, MicroAssembly Technologies, Inc. (United States)

Published in SPIE Proceedings Vol. 6113:
MEMS/MOEMS Components and Their Applications III
Scot S. Olivier; Srinivas A. Tadigadapa; Albert K. Henning, Editor(s)

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