Results 1 to 10 of about 711,732 (383)
Magnetic Fluid Deformable Mirror with a Two-Layer Layout of Actuators † [PDF]
Micromachines, 2017 In this paper, a new type of magnetic fluid deformable mirror (MFDM) with a two-layer layout of actuators is proposed to improve the correction performance for full-order aberrations with a high spatial resolution. The shape of the magnetic fluid surface
Zhizheng Wu +5 more
doaj +3 more sources
Wide-Aperture Bimorph Deformable Mirror for Beam Focusing in 4.2 PW Ti:Sa Laser
Applied Sciences, 2022 The bimorph deformable mirror with a diameter of 320 mm, including 127 control electrodes, has been developed and tested. The flatness of the initial mirror surface of about 1 μm (P-V) was achieved by mechanically adjusting the mirror substrate fixed in ...
Vadim Samarkin +7 more
doaj +2 more sources
Frontiers in Astronomy and Space Sciences, 2021 The Deformable Mirror Demonstration Mission (DeMi) is a technology demonstration CubeSat to test a 140 actuator micro-electromechanical system (MEMS) deformable mirror in low-Earth orbit.
Ewan S. Douglas +12 more
doaj +2 more sources
State-of-the-Art Technologies in Piezoelectric Deformable Mirror Design
Photonics, 2022 In this work, two advanced technologies were applied for manufacturing a bimorph wavefront corrector: laser ablation, to vaporize conductive silver coating from piezoceramic surface, and parallel-gap resistance microwelding, to provide a reliable ...
Vladimir Toporovsky +5 more
doaj +2 more sources
High pixel number deformable mirror concept utilizing piezoelectric hysteresis for stable shape configurations [PDF]
arXiv, 2020 We present the conceptual design and initial development of the Hysteretic Deformable Mirror (HDM). The HDM is a completely new approach to the design and operation of deformable mirrors for wavefront correction in advanced imaging systems. The key technology breakthrough is the application of highly hysteretic piezoelectric material in combination ...
A. Schmerbauch +4 more
arxiv +3 more sources
Color-coded methodology for deformable mirrors [PDF]
Optical Engineering, 2006 The paper describes an experimental procedure for the reconstruction of the geometrical parameters of a reflecting surface. The method is based on the projection of a luminous pattern constituted by coloured points. The successive chromatic selection reduces the complexity of the acquired image.
Paola Sansoni
openalex +6 more sources
Interferometric calibration of a deformable mirror
, 2020 This tutorial discusses the static calibration of a deformable mirror using a Twyman–Green interferometer setup, combined with single-frame fringe analysis for phase extraction.
J. Antonello +4 more
semanticscholar +3 more sources
Development of a miniaturized deformable mirror controller [PDF]
SPIE Proceedings, 2016 High-Performance Adaptive Optics systems are rapidly spreading as useful applications in the fields of astronomy, ophthalmology, and telecommunications.
E. Bendek +6 more
semanticscholar +5 more sources
Optics Express, 2018 Free-space quantum key distribution (QKD) is important to realize a global-scale quantum communication network. However, performing QKD in daylight against the strong background light noise is a major challenge.
Y. Gong +13 more
semanticscholar +2 more sources
Unimorph deformable mirror for space telescopes: environmental testing.
Optics Express, 2016 We have developed and manufactured a unimorph deformable mirror for space telescopes based on piezoelectric actuation. The mirror features 44 actuators, has an aperture of 50 mm, and is designed to reproduce low-order Zernike modes with a stroke of ...
P. Rausch, S. Verpoort, U. Wittrock
semanticscholar +2 more sources