Results 191 to 200 of about 30,065 (244)

CURVED WAVEFRONT CORRECTIONS FOR PHOTOELECTRON SCATTERING

, 1985
Barton, J.J., Shirley, D.A.
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Wavefront corrections of intraocular lenses

Ophthalmology Clinics of North America, 2004
This article describes two currently available intraocular lenses (IOLs) that have special design features allowing for correction of optical aberrations other than spherical refractive errors. Although they are not yet fully "customized" lenses, their development has involved average aberrations measured with wavefront technology.
Liliana, Werner, Nick, Mamalis
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Wavefront correction with photon echoes

Optics Communications, 1977
Abstract If a first pulse with accumulated phase ϕ( x , y , z 0 ) and a plane wave second pulse generate a photon echo, the echo has phase -ϕ( x , y , z 0 ) and is wavefront corrected when returned along the path of the first pulse.
C.V. Heer, P.F. McManamon
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Wavefront shaping for intraocular scattering correction

OSA Imaging and Applied Optics Congress 2021 (3D, COSI, DH, ISA, pcAOP), 2021
In this work we propose a non-invasive alternative to cataracts surgery by means of manipulating the wavefront of the incident light. We show a two-fold improvement in the Strehl ratio of the ocular Point Spread Function.
Alba Maria Paniagua-Diaz, Pablo Artal
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Liquid crystal lens with corrected wavefront asymmetry

Applied Optics, 2018
We propose a simple technique allowing the correction of the inherent wavefront asymmetry in electrically variable liquid crystal lenses with relatively small diameters. This is achieved by splitting the peripheral hole patterned electrode of the lens in the direction of the ground-state anisotropy axis.
Louis, Begel, Tigran, Galstian
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Surface solution to correct a freeform wavefront

Applied Optics, 2021
In this paper an equation is presented to design a refractive surface such that, given an arbitrary wavefront, the surface refracts it into a perfect spherical wave. The equation that computes these refractive surfaces is exhaustively tested using ray-tracing techniques, and the performance is as expected.
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Wavefront correcting properties of corner-cube arrays

Applied Optics, 1988
The performance of corner-cube arrays as pseudophase-conjugation wavefront correctors is investigated theoretically and experimentally. Hollow electroformed arrays and solid plastic arrays of corner-cube retroreflectors have been optically characterized and studied in a pseudophase-conjugate imaging system.
R A, Chipman, J, Shamir, H J, Caulfield, Q B, Zhou   +3 more
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Wavefront correction based on a reflective liquid crystal wavefront sensor

Journal of Optics A: Pure and Applied Optics, 2008
A novel wavefront sensor (WFS) based on liquid crystal on silicon (LCOS) is demonstrated. The design of the liquid crystal microlens array with LCOS is given in detail. To save the energy of the incident light, an optimized optical design of the WFS is also considered.
L Hu, L Xuan, D Li, Z Cao, Q Mu, Y Liu, Z Peng, X Lu   +7 more
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High-speed Holographic Wavefront Correction

Imaging and Applied Optics 2016, 2016
We present details of a compact, holographic adaptive optics system with 64 actuators and 100kHz bandwidth, but no computer. We are currently modifying our system with a view towards an on-sky test in a large astronomical telescope in late-2016.
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Aperture size effect on ultrasonic wavefront distortion correction

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2004
The influences of aperture size on wavefront distortion correction are investigated both theoretically and numerically. A multilayer, phase-screen model is assumed to be the underlying, distorting medium. Numerical simulations were performed using three wavefront distortion correction methods: time-shift compensation (TSC), backpropagation followed by ...
Deng-Huei, Huang, Jenho, Tsao
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