Results 21 to 30 of about 675,553 (330)
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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Opto-Electronic Advances, 2023 Integrating deformable mirrors within the optical train of an adaptive telescope was one of the major innovations in astronomical observation technology, distinguished by its high optical throughput, reduced optical surfaces, and the incorporation of the
Youming Guo +9 more
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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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Influence functions for a hysteretic deformable mirror with a high-density 2D array of actuators. [PDF]
Applied Optics, 2020 We present modeling and analysis of a hysteretic deformable mirror where the facesheet interacts with a continuous layer of piezoelectric material that can be actuated distributively by a matrix of electrodes through multiplexing.
A. Schmerbauch +4 more
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General approach to precise deformable mirror control.
Optics Express, 2021 We develop a simple and effective control method for accurate control of deformable mirrors (DMs). For a desired DM surface profile and using batches of observed surface profile data, the proposed method adaptively determines both a DM model (influence ...
A. Haber, T. Bifano
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High pixel number deformable mirror concept utilizing piezoelectric hysteresis for stable shape configurations [PDF]
Journal of Astronomical Telescopes Instruments and Systems, 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.
A. Schmerbauch +4 more
semanticscholar +1 more source
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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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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Photonics, 2021 To acquire images with higher accuracy of wide-field telescopes, deformable mirrors with more than 100 actuators are used, making the telescope alignment more complex and time-consuming.
Min Li, Ang Zhang, Junbo Zhang, Hao Xian
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Active Optics–Freeform Segment Mirror Replications from a Deformable Matrix
Photonics, 2022 We present a new active optics method for making smooth aspheric, or freeform, mirrors by replication technique from an elastically deformable matrix.
Gerard R. Lemaitre, Patrick Lanzoni
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