Filtered Influence Function of Deformable Mirror for Wavefront Correction in Laser Systems
Photonics, 2021 An influence function filtering method (IFFM) is presented to improve the wavefront correction capability in laser systems by curbing the correction performance degradation resulted from the IF measurement noise.
Yamin Zheng +5 more
doaj +1 more source
Wavefront sensing for objective assessment of vision therapy efficacy: Preliminary results [PDF]
EPJ Web of Conferences, 2023 The aim of this study was to use wavefront sensing to objectively evaluate the effects of vision therapy in subjects with insufficiency (AI) and infacility of accommodation (AINF). Aberrometry was performed with a Shack-Hartmann wavefront aberrometer for
Gomes Jessica +2 more
doaj +1 more source
Programming balanced optical beam splitters in white paint [PDF]
, 2014 Wavefront shaping allows for ultimate control of light propagation in multiple-scattering media by adaptive manipulation of incident waves. We shine two separate wavefront-shaped beams on a layer of dry white paint to create two enhanced output speckle ...
Goorden, S.A. +5 more
core +7 more sources
ELT METIS wavefront control strategy
Adaptive Optics Systems VIII, 2022 EPIC
Correia, Carlos M. +10 more
openaire +1 more source
MEMS Deformable Mirrors for Space-Based High-Contrast Imaging
Micromachines, 2019 Micro-Electro-Mechanical Systems (MEMS) Deformable Mirrors (DMs) enable precise wavefront control for optical systems. This technology can be used to meet the extreme wavefront control requirements for high contrast imaging of exoplanets with coronagraph
Rachel E. Morgan +19 more
doaj +1 more source
Study of a MEMS-based Shack-Hartmann wavefront sensor with adjustable pupil sampling for astronomical adaptive optics [PDF]
, 2008 We introduce a Shack-Hartmann wavefront sensor for adaptive optics that enables dynamic control of the spatial sampling of an incoming wavefront using a segmented mirror microelectrical mechanical systems (MEMS) device.
Baranec, Christoph, Dekany, Richard
core +1 more source
Wavefront Control of 2D Curved Coding Metasurfaces Based on Extended Array Theory
IEEE Access, 2019 We extend the array theory to design 2D curved coding metasurfaces in order to achieve arbitrary wavefront control. The extended array theory establishes the relationship between wavefront and curved-surface, which provides a simple and effective method ...
Yang Zhou +8 more
doaj +1 more source
Sensors, 2021 Modern large telescopes are built based on the effectiveness of adaptive optics systems in mitigating the detrimental effects of wavefront distortions on astronomical images.
María Coronel +3 more
doaj +1 more source
Telescope to Observe Planetary Systems (TOPS): a high throughput 1.2-m visible telescope with a small inner working angle [PDF]
, 2006 The Telescope to Observe Planetary Systems (TOPS) is a proposed space mission to image in the visible (0.4-0.9 micron) planetary systems of nearby stars simultaneously in 16 spectral bands (resolution R~20). For the ~10 most favorable stars, it will have
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core +2 more sources
Control Electromagnetic Waves Based on Multi-Layered Transparent Metasurface
Frontiers in Physics, 2019 Metasurface was presented to be the two-dimensional analogs of metamaterials that regulate the beam by adjusting the phase and amplitude of the wavefront.
Zhichao Sun +3 more
doaj +1 more source