Results 31 to 40 of about 48,622 (298)
Performance Comparison of Wavefront-Sensorless Adaptive Optics Systems by Using of the Focal Plane
International Journal of Optics, 2015 The correction capability and the convergence speed of the wavefront-sensorless adaptive optics (AO) system are compared based on two different system control algorithms, which both use the information of focal plane.
Huizhen Yang, Zhen Zhang, Jian Wu
doaj +1 more source
A review of dielectric optical metasurfaces for wavefront control
Nanophotonics, 2018 During the past few years, metasurfaces have been used to demonstrate optical elements and systems with capabilities that surpass those of conventional diffractive optics.
Kamali Seyedeh Mahsa +3 more
doaj +1 more source
, 2018 Coronagraphs on future space telescopes will require precise wavefront correction to detect Earth-like exoplanets near their host stars. High-actuator count microelectromechanical system (MEMS) deformable mirrors provide wavefront control with low size ...
Allan, Gregory +11 more
core +1 more source
Shaping elastic wavefront through zigzag-folded metasurfaces
Frontiers in Physics, 2023 We present a reconfigurable elastic metasurface design composed of an array of zigzag-folded sheets with parallel corrugations to control the wavefront of the refracted A0 Lamb mode wave.
Zhenkun Lin, Serife Tol
doaj +1 more source
Nanophotonics, 2023 The ultraviolet (UV) wavelength regime is attracting increasing attention because of its growing demand in semiconductor lithography, spectroscopy, and imaging applications owing to its high spatial resolution and high photon energy.
Won Seungjai +5 more
doaj +1 more source
Development of a scalable generic platform for adaptive optics real time control
, 2015 The main objective of the present project is to explore the viability of an adaptive optics control system based exclusively on Field Programmable Gate Arrays (FPGAs), making strong use of their parallel processing capability.
Burse, Mahesh P. +3 more
core +1 more source
Modern approaches to cataract surgery with high visual acuity based on wavefront analysis
Офтальмохирургия, 2023 Relevance. Until recently, visual acuity was the main criterion for determining the timing of surgery, but already in the early stages of cataract development, patients may suffer from reduced image quality, which affects the quality of life (“night ...
O.V. Shilovskikh +3 more
doaj +1 more source
, 2012 A shearing interferometer is presented which uses polarization control to shear the wavefront and to modulate the interference pattern. The shear is generated by spatial walk-off in a birefringent crystal. By adjusting the orientation of the birefringent
Abramowitz +14 more
core +1 more source
Non-common Path Aberration Correction in an Adaptive Optics Scanning Ophthalmoscope [PDF]
, 2014 The correction of non-common path aberrations (NCPAs) between the imaging and wavefront sensing channel in a confocal scanning adaptive optics ophthalmoscope is demonstrated.
Dubra, Alfredo, Sulai, Yusufu N.
core +2 more sources
VIRGO mirrors: wavefront control
Optical and Quantum Electronics, 1999 The Franco-Italian VIRGO program to detect gravitational waves requires large mirrors whose optical properties are extremely severe: absorption and scattering
Mackowski, J.-M. +6 more
openaire +1 more source