Results 1 to 10 of about 117,577 (177)
A Single Far-Field Deep Learning Adaptive Optics System Based on Four-Quadrant Discrete Phase Modulation [PDF]
Sensors, 2020 In adaptive optics (AO), multiple different incident wavefronts correspond to a same far-field intensity distribution, which leads to a many-to-one mapping.
Xuejing Qiu +4 more
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Experimental Verification of Model-Based Wavefront Sensorless Adaptive Optics System for Large Aberrations [PDF]
MicromachinesTo address the limitations of conventional wavefront sensorless adaptive optics (AO) systems regarding iteration efficiency and convergence speed, this study conducts an experimental validation of a model-based wavefront sensorless AO approach.
Huizhen Yang +4 more
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Improving free-space continuous variable quantum key distribution with adaptive optics [PDF]
Scientific ReportsA significant performance inhibitor of free-space continuous variable quantum key distribution (CVQKD) is turbulence, which gives rise to wavefront phase and amplitude aberrations.
Mikhael T. Sayat +8 more
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In vivo imaging of the outer retina after an autologous neurosensory retinal free flap transplantation for a refractory macular hole closure [PDF]
Journal of Medical Case ReportsBackground There are limited surgical options to successfully close a refractory macular hole. One promising option is an autologous neurosensory retinal free flap transplantation.
Danae A. Johnson +3 more
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CIAO: An on-the-shelf adaptive optics system for astronomers [PDF]
EPJ Web of Conferences, 2023 Since 1990, adaptive optics are used in astronomy to remove the effects of atmospheric turbulence, and then retrieve diffraction-limited images, even in bad seeing conditions.
Dovillaire Guillaume, Leveder Cora
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An Optimal Integral Controller for Adaptive Optics Systems
Sensors, 2023 Integral controllers are commonly employed in astronomical adaptive optics. This work presents a novel tuning procedure for integral controllers in adaptive optics systems which relies on information about the measured disturbances. This tuning procedure
Pedro Escárate +3 more
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Investigation of Numerical Simulation for Adaptive Optics System
Iraqi Journal of Physics, 2023 In this study, the performance of the adaptive optics (AO) system was analyzed through a numerical computer simulation implemented in MATLAB. Making a phase screen involved turning computer-generated random numbers into two-dimensional arrays of phase ...
Sara Usama Jasim, Raaid Nawfee Hassan
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The ERIS adaptive optics system [PDF]
SPIE Proceedings, 2016 ERIS is the new AO instrument for VLT-UT4 led by a Consortium of Max-Planck Institut fuer Extraterrestrische Physik, UK-ATC, ETH-Zurich, ESO and INAF. The ERIS AO system provides NGS mode to deliver high contrast correction and LGS mode to extend high Strehl performance to large sky coverage.
RICCARDI, Armando +21 more
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Application of Adaptive Optics in Ophthalmology
Photonics, 2022 The eye, the photoreceptive organ used to perceive the external environment, is of great importance to humans. It has been proven that some diseases in humans are accompanied by fundus changes; therefore, the health status of people may be interpreted ...
Lixin Liu +6 more
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Sensors, 2022 A laser scanning confocal microscope (LSCM) is an effective scientific instrument for studying sub-micron structures, and it has been widely used in the field of biological detection. However, the illumination depth of LSCMs is limited due to the optical
Kunhua Zhou +5 more
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