title: High resolution wavefront correction with photocontrolled deformable mirror.
abstract: We demonstrate that a novel actuation scheme, employed in an optical control deformable mirror, can be more convenient than the conventional discrete fixed actuators approach. The Photo-Controlled Deformable Mirror (PCDM) mirror leverages consumer LCD display technology in the wavefront forming control, enabling flexible programmable configuration of the actuation geometry. This new approach simplifies the driving electronics, relaxing the per channel cost of high spatial control of the wavefront forming surface. In our experiment we tested the PCDM by applying the equivalent of 36, 76 and 201 actuators, this by just changing the light driving pattern. We demonstrated the effectiveness of this technique in a closed loop setup, which showed performances superior to the state of the art for similar DM, while providing a significant reduction in the hardware complexity.
authors.affiliation: CNR-IFN, Laboratory for Ultraviolet and X-ray Optical Research, via Trasea 7, 35131 Padova, Italy. stefano.bonora@dei.unipd.it
authors.forename: S
authors.initials: S
authors.lastname: Bonora
authors.forename: D
authors.initials: D
authors.lastname: Coburn
authors.forename: U
authors.initials: U
authors.lastname: Bortolozzo
authors.forename: C
authors.initials: C
authors.lastname: Dainty
authors.forename: S
authors.initials: S
authors.lastname: Residori
mesh_terms: D016477:Artifacts; D055119:Elastic Modulus; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005246:Feedback; D007089:Image Enhancement / Q000295:instrumentation*; D007909:Lenses; D050866:Liquid Crystals / Q000737:chemistry*