Open AccessPush-pull membrane mirrors for adaptive optics
Author(s) -
Stefano Bonora,
Luca Poletto
Publication year - 2006
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.14.011935
Subject(s) - zernike polynomials , deformable mirror , optics , indium tin oxide , adaptive optics , materials science , electrode , compensation (psychology) , clipping (morphology) , optoelectronics , wavefront , computer science , physics , thin film , nanotechnology , psychology , linguistics , philosophy , quantum mechanics , psychoanalysis
We propose an improvement to the electrostatic membrane deformable mirror technique introducing push-pull capability that increases the performance in the correction of optical aberrations. The push-pull effect is achieved by the addition of some transparent electrodes on the top of the device. The transparent electrode is an indium-tin-oxide coated glass. The improvement of the mirror in generating surfaces is demonstrated by the comparison with a pull membrane mirror. The control is carried out in open loop by the knowledge of the response of each single electrode. An effective iterative strategy for the clipping management is presented. The performances are evaluated both in terms of Zernike polynomials generation and in terms of aberrations compensation based on the statistics of human eyes.