Physics – Optics
Scientific paper
Jul 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006spie.6272e..85v&link_type=abstract
Advances in Adaptive Optics II. Edited by Ellerbroek, Brent L.; Bonaccini Calia, Domenico. Proceedings of the SPIE, Volume 6272
Physics
Optics
Scientific paper
Recently, a new type of liquid based deformable mirror has been proposed and demonstrated. The device consists of an array of vertically oriented open capillary channels immersed in a pool of two immiscible liquids and a free-floating reflective membrane, which serves as the reflecting surface. Liquid surface and membrane deformations are facilitated by means of electrocapillary actuation that induces upward or downward flow of liquid inside the capillary. This electrocapillary movement of liquid can be individually controlled. The advantages of this proposed device include high stroke dynamic range, low power dissipation, high number of actuators, fast response time, and reduced fabrication cost. The device is mainly suitable for dynamic wavefront correction. We present some aspects of the modeling of the device.
Bhattacharya Nandini
Braat Joseph J. M.
Vuelban Edgar M.
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