Results 31 to 40 of about 1,039,039 (252)
Laboratory characterization of the ARGOS laser wavefront sensor [PDF]
, 2012 In this paper we present the integration status of the ARGOS wavefront sensor and the results of the closed loop tests performed in laboratory. ARGOS is the laser guide star adaptive optics system of the Large Binocular Telescope.
Gilles Orban de Xivry +17 more
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Centroid-Predicted Deep Neural Network in Shack-Hartmann Sensors
IEEE Photonics Journal, 2022 The Shack-Hartmann wavefront sensor produces incorrect wavefront measurements when some sub-spots are weak and missing. In this paper, a method is proposed to predict the centroids of these sub-spots for the Shack-Hartmann wavefront sensor based on the ...
Mengmeng Zhao +6 more
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Компьютерная оптика, 2021 The use of a multichannel wavefront sensor matched with phase Zernike functions to determine the type and magnitude of aberration in the analyzed wavefront is investigated.
P.A. Khorin +2 more
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A new low-cost, compact, auto-phoropter for refractive assessment in developing countries
Scientific Reports, 2017 Using a phoropter to measure the refractive error is one of the most commonly used methods by ophthalmologists and optometrists. Here, we demonstrate design and fabrication of a portable automatic phoropter with no need for patient’s feedback. The system
Babak Amirsolaimani +4 more
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A Local Threshold Checkerboard Algorithm for Adaptive Optics System With a Plenoptic Sensor
IEEE Photonics Journal, 2022 Adaptive optics systems will encounter challenges under strong atmospheric turbulence conditions. Recently, a modified approach based on plenoptic sensor has attracted considerable attention.
Zhichong Wang +5 more
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Shack-Hartmann Wavefront Sensing of Ultrashort Optical Vortices
Sensors, 2021 Light beams carrying Orbital Angular Momentum (OAM), also known as optical vortices (OV), have led to fascinating new developments in fields ranging from quantum communication to novel light–matter interaction aspects. Even though several techniques have
Alok Kumar Pandey +4 more
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IEEE Photonics Journal, 2021 The charge-coupled device-based Shaker–Hartmann wavefront sensor has been widely used to compensate for wavefront distortion in coherent optical communication.
Xu Yan +6 more
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Differential Wavefront Curvature Sensor
, 2005 In this paper, a wavefront curvature sensor is presented. This sensor is based on the measurements of the differentials of wavefront slopes, where the wavefront slope measurements can be achieved by a Shack-Hartmann sensor.
Zou, Weiyao, Rolland, Jannick
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, 2022 Paper 97171P, 6 S.The measurement of a wavefront is a powerful tool for characterizing optical systems. The most commonly used wavefront measurement technique is the method of local-light aberrometry.
Hartmann, Peter +4 more
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Shack-Hartmann and Interferometric Hybrid Wavefront Sensor [PDF]
, 2011 This document reports results of wave-optics simulations used to test the performance of a hybrid wavefront sensor designed to combine the self-referencing interferometer and Shack-Hartmann wavefront sensors in an optimal way.
Ellis, Troy R.
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