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Deep learning assisted Shack-Hartmann wavefront sensor for direct wavefront detection.
Optics Letters, 2020The conventional Shack-Hartmann wavefront sensor (SHWS) requires wavefront slope measurements of every micro-lens for wavefront reconstruction. In this Letter, we applied deep learning on the SHWS to directly predict the wavefront distributions without ...
Lejia Hu, Shuwen Hu, W. Gong, Ke Si
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Wavefront Aberration and Wavefront Shape
2016The study of optical systems may be considered from two different perspectives, namely systems analysis and systems design, respectively.
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Intensity-enhanced deep network wavefront reconstruction in Shack-Hartmann sensors.
Optics Letters, 2020The Shack-Hartmann wavefront sensor (SH-WFS) is known to produce incorrect measurements of the wavefront gradient in the presence of non-uniform illumination.
Theodore B. Dubose +2 more
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Wavefront reconstruction for the Shack-Hartmann wavefront sensor
SPIE Proceedings, 2002The Shack-Hartmann wavefront sensor is a powerful tool for optical analysis. A vital step in the data analysis chain involves reconstructing the wavefront incident upon the lenslet array from hundreds or thousands of slope measurements. We discuss here the basics of reconstruction and the differences in reconstruction for the case of Hartmann and Shack-
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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.
R. J. Fedorowicz, A. A. Friesem
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The wavefront and delta -wavefront algorithms: a comparative study
[1991 Proceedings] Tenth Annual International Phoenix Conference on Computers and Communications, 2002The author studies and compares, using rigorous analytical models, the performances of two algorithms, wavefront and delta -wavefront, suitable for processing an important class of recursive queries, the partially-instantiated transitive closure ones. Such a study reveals, among other findings, that the performance of these algorithms individually as ...
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Wavefront sensing with an axicon
Optics Letters, 2011The use of a large apex-angle axicon for common-path interferometric wavefront sensing is proposed. The approach is a variant of point-diffraction interferometry bearing similarities to pyramidal wavefront sensing. A theoretical basis for wavefront sensing with an axicon is developed, and the outcomes of numerical simulations are compared to ...
Diego Rativa +2 more
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Diverse terahertz wavefront manipulations empowered by the spatially interleaved metasurfaces
Science China Information Sciences, 2023Jitao Li +8 more
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Wavefront shaping in complex media with a 350 kHz modulator via a 1D-to-2D transform
Nature Photonics, 2018Controlling the propagation and interaction of light in complex media has sparked major interest in the past few years. Unfortunately, spatial light modulation devices suffer from limited speed, which precludes real-time applications such as imaging in ...
O. Tzang +5 more
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