Results 11 to 20 of about 3,034 (156)
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
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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
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Calibration of Deformable Mirrors for Open-Loop Control
Sensors, 2022 Deformable mirrors enable the control of wave fronts for the compensation of aberrations in optical systems and/or for beam scanning. Manufacturers of deformable mirrors typically provide calibration data that encode for the fabrication tolerances among ...
Marcel Leutenegger, Stefan W. Hell
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Photonics, 2023 In a photoelectric tracking system, a deformable mirror can be used to adjust the transmission path of a light beam to achieve accurate measurement and tracking of the target position.
Bo Li, Dapeng Tian
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A Study on a Single Continuous Deformable Mirror for Correction of Atmospheric Disturbance [PDF]
한국정밀공학회지, 2018 The deformable mirror is the main component of the adaptive optical imaging system, which removes the atmospheric disturbance and acquires the target image without any loss and the beam transmission system, which transmits the laser beam to a long ...
Hyun Cheol Cho +3 more
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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
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Photonics, 2023 Atmospheric turbulence causes refractive index fluctuations, which in turn introduce extra distortions to the wavefront of the propagated radiation. It ultimately degrades telescope resolution (in imaging applications) and reduces radiation power density
Ilya Galaktionov +4 more
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Ultralightweight deformable mirrors [PDF]
Applied Optics, 2013 This paper presents a concept for ultralightweight deformable mirrors, based on a thin substrate of optical surface quality, coated with continuous active layers that provide separate modes of actuation at different length scales. This concept eliminates any kind of stiff backing structure for the mirror surface and exploits microfabrication ...
Patterson, Keith, Pellegrino, Sergio
openaire +3 more sources
Active optics: deformable mirrors with a minimum number of actuators [PDF]
Journal of the European Optical Society-Rapid Publications, 2012 We present two concepts of deformable mirror to compensate for first order optical aberrations. Deformation systems are designed using both elasticity theory and Finite Element Analysis in order to minimize the number of actuators.
Laslandes M., Hugot E., Ferrari M.
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Amplitude Zone Plate in Adaptive Optics: Proposal of the Principle
Photonics, 2022 One of the main elements in hardware-based adaptive optics systems is a deformable mirror. There is quite a large number of such mirrors based on different principles and exhibiting varying performance.
Vasily Matkivsky +3 more
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