Results 31 to 40 of about 3,034 (156)
Research on a Decoupling Algorithm for the Dual-Deformable-Mirrors Correction System
Applied Sciences, 2023 Wavefront distortion caused by atmospheric turbulence can be described as different types of aberrations, such as piston, tilt, defocusing, astigmatism, coma and so on.
Jingyuan Liang +3 more
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Sixty-Nine-Element Voice Coil Deformable Mirror for Visible Light Communication
Photonics, 2023 To overcome the atmospheric turbulence aberration, and improve the quality of light beam in visible light communication (VLC), a compact 69-element deformable mirror (DM) using micro voice coil actuators was designed based on systematic theoretical ...
Lv Jiang +6 more
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Mode-Voltage Constrained Control for Adaptive Optics System
IEEE Photonics JournalIn the adaptive optics system of astronomical observation, the deformable mirror and the tip/tilt mirror are coupled during the correction process.
Ruitao Wang +7 more
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Adaptive Optical Closed-Loop Control Based on the Single-Dimensional Perturbation Descent Algorithm
Sensors, 2023 Modal-free optimization algorithms do not require specific mathematical models, and they, along with their other benefits, have great application potential in adaptive optics.
Bo Chen +4 more
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Micromachines, 2023 A common problem in deformable mirror assembly is that the adhesion of actuators to an optical mirror face sheet introduces unwanted topography due to large local stresses generated at the adhesive joint.
Wenkuan Man, Thomas G. Bifano
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Nanolaminate Deformable Mirrors [PDF]
IEEE/LEOS International Conference on Optical MEMS and Their Applications Conference, 2006., 2006 The paper describes two similar deformable mirrors that will demonstrate the feasibility of nanolaminate-based deformable mirrors over a wide range of size scales. Two complementary technologies: high-spatial-density electrostatic actuators and thin, flexible, lightweight nanolaminate foils are combined.
Papavasiliou, A. P. +6 more
openaire +1 more source
An active piezoelectric plane X-ray focusing mirror with a linearly changing thickness
Journal of Synchrotron RadiationX-ray mirrors for synchrotron radiation are often bent into a curved figure and work under grazing-incidence conditions due to the strong penetrating nature of X-rays to most materials.
Naxi Tian +5 more
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Thermal Balance and Active Damping of a Piezoelectric Deformable Mirror for Adaptive Optics
Actuators, 2019 Piezoelectric unimorph deformable mirrors offer a cheap solution to adaptive optics, with mass production capability. However, standard solutions have significant drawbacks: (i) the static shape is sensitive to the temperature, and (ii) the low ...
Kainan Wang +2 more
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Adaptive optics design for high-energy kW-class multi-slab laser amplifiers
High Power Laser Science and EngineeringWe demonstrate real-time wavefront correction in a high-energy high-average-power DiPOLE100/Bivoj laser using adaptive optics. A bimorph deformable mirror and a Shack–Hartmann wavefront sensor reduced wavefront error 10-fold and improved the Strehl ratio
Tomáš Paliesek +4 more
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Photonics, 2022 Conventional phase measuring deflectometry (PMD) takes up a large measurement space and is not suitable for compact online measurement, as the liquid crystal display (LCD) has to be placed in parallel with the mirror under test.
Yongchen Zhuang +5 more
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