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Multilcolor Wavefront Reconstruction
Applied Optics, 1967Two and three primary colors derived from an He-Ne gas laser and an argon gas laser were employed in recording and reconstructing holograms. For the tricolor case it is possible to reconstruct a three-dimensional multicolor image which possesses almost all the natural hues of the original object.
A A, Friesem, R J, Fedorowicz
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Microscopy by Wavefront Reconstruction
Journal of the Optical Society of America, 1965Magnification by the wavefront-reconstruction imaging method is discussed. An analysis is given of the aberrations which arise in this type of imagery. Conditions are derived which lead to aberration-free reconstructions.
Emmett N. Leith, Juris Upatnieks
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Wavefront reconstruction from its gradients
Journal of the Optical Society of America A, 2006Wavefronts reconstructed from measured gradients are composed of a straightforward integration of the measured data, plus a correction term that disappears when there are no measurement errors. For regions of any shape, this term is a solution of Poisson's equation with Dirichlet conditions (V = 0 on the boundaries).
Amos, Talmi, Erez N, Ribak
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Wavefront reconstruction photography
Physics Today, 1965Wavefront reconstruction, or holography, is a fascinating photographic process which is a major departure from conventional photography. In this process, discovered in 1947 by D. Gabor of Imperial College, London, the photosensitive device does not directly record an image of the subject; instead, the electromagnetic waves reflected or scattered from ...
Emmett Leith, Juris Upatnieks
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Wavefront reconstruction using smartphone based wavefront sensors
SPIE Proceedings, 2015Smartphone camera system has the capability of being integrated into powerful field-sensing tools, capturing data and sharing these data with computing servers or cloud experts. The purpose of this work is to implement a wavefront sensor based on the smartphone platform, which has many potential applications in thin-films and bio-related sensing areas.
Zhenyu Yang, Qiwen Zhan
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Wavefront reconstruction error of Shack-Hartmann wavefront sensors
Publications of the Astronomical Society of the Pacific, 1994We have evaluated the wavefront reconstruction error for Shack-Hartmann wavefront sensors based on a series of simulations for various numbers of subapertures at various levels of measurement error in determining the Hartmann spot centroids. The optimum number of subapertures is derived for a given magnitude reference star in the cases of photon-noise ...
N. Takato, M. Iye, I. Yamaguchi
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Fourier wavefront reconstruction with a pyramid wavefront sensor
Adaptive Optics Systems VI, 2018Using Fourier methods to reconstruct the phase measured by a wavefront sensor (WFS) can significantly re- duce the number of computations required, as well as easily enable predictive reconstruction methods based on knowledge of the adaptive optics system, atmospheric turbulence and wind profile. Previous work on Fourier re- construction has focused on
Bond, Charlotte +5 more
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Acousto-optic wavefront sensing and reconstruction
Applied Optics, 2008We employ an acousto-optic cell as a tunable-pitch wavefront sensor and study its performance. The index of refraction of two cross-standing waves forms, in the near field, an adjustable array of caustics. These caustics, similar to the lenslets used for Hartmann-Shack sensing, were measured to have an extended focal relief of 200 times their pitch. We
Adir, Stup +3 more
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