Results 271 to 280 of about 2,071,972 (337)

Generalized non-linear reconstructor for all Fourier-type wavefront sensors

Victoria Hutterer
openalex   +1 more source

A Method for Mounting Space Telescope Optical Systems Based on the Sensitivity Matrix of Intrinsic Coefficients. [PDF]

Sensors (Basel)
Hou H, Ding H, Dong K, Cao G, Wang B.
europepmc   +1 more source

Phase Characterization of Singular Metasurfaces. [PDF]

ACS Photonics
Tahmi Y, Ansquer M, Coulon PM, Chenot S, Brändli V, Majorel C, Patoux A, Colom R, Wattellier B, Genevet P, Khadir S.   +10 more
europepmc   +1 more source

Accurate Measurement of Blast Shock Wave Pressure by Enhanced Sensor System Based on Neural Network. [PDF]

Sensors (Basel)
Yang F, Zhu H, Kong D, Zhao C.
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High-precision wavefront reconstruction from Shack-Hartmann wavefront sensor data by a deep convolutional neural network

Measurement science and technology, 2021
The Shack–Hartmann wavefront sensor (SHWFS) has been widely used for measuring aberrations in adaptive optics systems. However, its traditional wavefront reconstruction method usually has limited precision under field conditions because the weight-of ...
Hu Gu, Ziyun Zhao, Zhi-gao Zhang, Shuo Cao, Jing-jing Wu, Lifa Hu   +5 more
semanticscholar   +1 more source

Lab tests of segment/petal phasing with a pyramid wavefront sensor and a holographic dispersed fringe sensor in turbulence with the Giant Magellan Telescope high contrast adaptive optics phasing testbed

Journal of Astronomical Telescopes Instruments and Systems, 2022
. The Giant Magellan Telescope (GMT) design consists of seven circular 8.4-m diameter mirrors, together forming a single 25.4-m diameter primary mirror. This large aperture and collecting area can help extreme adaptive optics (ExAO) systems such as GMT’s
A. Hedglen, L. Close, S. Haffert, J. Males, M. Kautz, A. Bouchez, R. Demers, F. Quirós-Pacheco, B. Sitarski, O. Guyon, Kyle Van Gorkom, J. Long, J. Lumbres, L. Schatz, K. Miller, A. Rodack, J. Knight   +16 more
semanticscholar   +1 more source

Holographic wavefront sensors

Quantum Electronics, 2020
Abstract A brief historical review of the first designs of holographic wavefront sensors (WFS’s) and the concepts lying in their basis is presented. The main directions in the development of these sensors are highlighted and considered.
V.Yu. Venediktov, A.V. Gorelaya, G.K. Krasin, S.B. Odinokov, A.A. Sevryugin, E.V. Shalymov   +5 more
openaire   +1 more source

Iterative wavefront reconstruction for strong turbulence using Shack-Hartmann wavefront sensor measurements.

Journal of The Optical Society of America A-optics Image Science and Vision, 2021
An iterative wavefront reconstruction method using Shack-Hartmann wavefront sensor (SHWFS) measurements is presented in this paper. A new cost function for the wavefront reconstruction problem is derived and the solution is obtained iteratively using the
J. J. Kim, B. Fernández, B. Agrawal
semanticscholar   +1 more source