0424622 - ÚFP 2014 RIV CZ eng C - Conference Paper (international conference)
Kruchenko, Alexey - Nováková, Kateřina - Mokrý, Pavel
Optimization of electrode geometry and piezoelectric layer thickness of a deformable mirror.
OaM/ 2012/ Optics and Measurement International Conference. Conference Proceedings. Praha: IPP AS CR - TOPTEC, 2012 - (Vít, T.; Kovačičinová, J.; Lédl, V.), s. 69-73. ISBN 978-80-87026-02-1.
[OaM 2012 International Conference on Optics and Measurement. Liberec (CZ), 16.10.2012-18.10.2012]
R&D Projects: GA MŠMT(CZ) ED2.1.00/03.0079
Institutional support: RVO:61389021
Keywords : Adaptive optics * mirrors
Subject RIV: JA - Electronics ; Optoelectronics, Electrical Engineering

Deformable mirrors are the most commonly used wavefront correctors in adaptive optics systems. Nowadays, many applications of adaptive optics to astronomical telescopes, high power laser systems, and similar fast response optical devices require large diameter deformable mirrors with a fast response time and high actuator stroke. In order to satisfy such requirements, deformable mirrors based on piezoelectric layer composite structures have become a subject of intense scientific research during last two decades. In this paper, we present an optimization of several geometric parameters of a deformable mirror that consists of a nickel reflective layer deposited on top of a thin lead zirconate titanate (PZT) piezoelectric disk. Honeycomb structure of gold electrodes is deposited on the bottom of the PZT layer. The analysis of the optimal thickness ratio between the PZT and nickel layers is performed to get the maximum actuator stroke using the finite element method. The effect
Permanent Link: http://hdl.handle.net/11104/0230679