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 +4 more sources
An active piezoelectric plane X-ray focusing mirror with a linearly changing thickness [PDF]
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
doaj +2 more sources
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
doaj +2 more sources
Design and Fabrication of a Large-Stroke Deformable Mirror Using a Gear-Shape Ionic-Conductive Polymer Metal Composite [PDF]
Sensors, 2012 Conventional camera modules with image sensors manipulate the focus or zoom by moving lenses. Although motors, such as voice-coil motors, can move the lens sets precisely, large volume, high power consumption, and long moving time are critical issues for
Guo-Dung John Su, Hsiang-Chun Wei
doaj +2 more sources
Adaptive Optical Closed-Loop Control Based on the Single-Dimensional Perturbation Descent Algorithm [PDF]
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
doaj +2 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
High fidelity adaptive mirror simulations with reduced order models [PDF]
Journal of Mathematics in IndustryIn the design process of large adaptive mirrors numerical simulations represent the first step to evaluate the system design compliance in terms of performance, stability and robustness.
Bernadett Stadler +5 more
doaj +2 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.
Yun-Hong Gong +13 more
openalex +2 more sources
Thermal deformation compensation scheme to the sub-nanometre level of a piezoelectric offset mirror for MHz repetition rate free-electron laser [PDF]
Journal of Synchrotron RadiationFree-electron laser (FEL) facilities operating at MHz repetition rates can emit lasers with average powers reaching hundreds of watts. Partial absorption of this power induces thermal deformation of a few micrometres on the mirror surface.
Baoning Sun +7 more
doaj +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 ...
Peter Rausch +2 more
openalex +2 more sources