WU Jun-qiu,WU Zhi-zheng,KONG Xiang-hui,ZHANG Zhu,LIU Mei.Magnetic fluid based deformable mirror for aberration correction of liquid telescope[J].Optoelectronics Letters,2017,13(2):90-94 Magnetic fluid based deformable mirror for aberration correction of liquid telescope Author Name Affiliation WU Jun-qiu  Department of Precision Mechanical Engineering, Shanghai University, Shanghai 200072, China  WU Zhi-zheng  Department of Precision Mechanical Engineering, Shanghai University, Shanghai 200072, China  KONG Xiang-hui  Department of Precision Mechanical Engineering, Shanghai University, Shanghai 200072, China  ZHANG Zhu  Department of Precision Mechanical Engineering, Shanghai University, Shanghai 200072, China  LIU Mei  Department of Precision Mechanical Engineering, Shanghai University, Shanghai 200072, China  Abstract:       A magnetic fluid based deformable mirror (MFDM) that could produce a large stroke more than 100 μm is designed and demonstrated experimentally with respect to the characteristics of the aberration of the liquid telescope. Its aberration correction performance is verified by the co-simulation using COMSOL and MATLAB. Furthermore, the stroke performance of the MFDM and the decentralized linear quadratic Gaussian (LQG) mirror surface control approach are experimentally evaluated with a prototype of MFDM in an adaptive optics system to show its potential application for the large aberration correction of liquid telescopes. Hits: 3645 Download times: 0 View Full Text    Download reader