Development of a liquid based deformable mirror

Edgar M. Vuelban; Nandini Bhattacharya; Joseph M. Braat

doi:10.1117/12.672870

28 June 2006 Development of a liquid based deformable mirror

Edgar M. Vuelban, Nandini Bhattacharya, Joseph M. Braat

Proceedings Volume 6272, Advances in Adaptive Optics II; 62722O (2006) https://doi.org/10.1117/12.672870
Event: SPIE Astronomical Telescopes + Instrumentation, 2006, Orlando, Florida , United States

Abstract

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.

Citation Download Citation

Edgar M. Vuelban, Nandini Bhattacharya, and Joseph M. Braat "Development of a liquid based deformable mirror", Proc. SPIE 6272, Advances in Adaptive Optics II, 62722O (28 June 2006); https://doi.org/10.1117/12.672870

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