International Conference on Physics.SPb/2025

Wide-aperture bimorph mirrors and the problem of the “print-through” structure of the separated piezoplates

V. V. Samarkin, A. G. Alexandrov, P. M. Kuzmitskii, A. V. Kudryashov

Institute of Dynamics of Geospheres, Russian Academy of Sciences, Moscow

Abstract: The results of a study on the occurrence and compensation of the “print-through” effect on piezoceramic plates in wide-aperture bimorph mirrors of a combined type are presented. It is shown that the use of the technique of “training” the piezoelectric plates by applying control voltages to the electrodes according to a special algorithm can significantly improve the initial flatness of the corrector. This allows to apply this type of flexible mirror in high-power laser systems, including those designed for laser fusion.

Keywords: deformable mirror, bimorph electrode, piezoceramic actuator.

Received: 23.09.2025
Revised: 07.10.2025
Accepted: 07.10.2025

DOI: 10.61011/PJTF.2025.24.61756.8588

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