.Numerical simulation of a bilayer PMN ceramic bimorph deformable mirror[J].Optoelectronics Letters,2010,6(5):342-345 Numerical simulation of a bilayer PMN ceramic bimorph deformable mirror 孙全 College of Optoelectric Science and Engineering, National University of Defense Technology； Abstract:       A novel design of bimorph deformable mirror (DM) is presented. Compared with the bilayer lead zirconium titanate (PZT) ceramic structure, the bilayer lead magnesium niobate (PMN) ceramic structure has greater surface displacement at the same thickness. The static simulation of the bilayer PMN bimorph deformable mirror with the finite element analysis (FEA) shows that the prototype has a stroke of above ± 23 μm, response time of 3 ms and nearly linear displacement characteristic with voltage rising. The results of simulation indicate that the bilayer PMN bimorph DM can satisfy the basic requirements of adaptive optics (AO) systems. Hits: 4125 Download times: 266 View Full Text    Download reader