Nanolaminate deformable mirrors
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United States of America Patent
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Apr 14, 2009
Grant Date -
Feb 14, 2008
app pub date -
Aug 8, 2006
filing date -
Aug 8, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A deformable mirror formed out of two layers of a nanolaminate foil attached to a stiff substrate is introduced. Deformation is provided by an electrostatic force between two of the layers. The internal stiffness of the structure allows for high-spatial-frequency shapes. The nanolaminate foil of the present invention allows for a high-quality mirror surface. The device achieves high precision in the vertical direction by using foils with accurately controlled thicknesses, but does not require high precision in the lateral dimensions, allowing such mirrors to be fabricated using crude lithography techniques. Such techniques allow structures up to about the meter scale to be fabricated.
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