Results 61 to 70 of about 5,505 (209)
Metasurfaces in Adaptive Optics: A New Opportunity in Optical Wavefront Sensing
Laser &Photonics Reviews, Volume 19, Issue 24, December 17, 2025.Wavefront sensing constitutes a critical component of adaptive optics systems, aimed at quantitatively measuring distorted wavefronts and enabling closed‐loop correction in optical setups. Metasurfaces, as planar optical elements composed of nanoscale structures, provide exceptional freedom in modulating multiple dimensions of the light field.
Rundong Fan +3 more
wiley +1 more source
Polarization dOTF: on-sky focal plane wavefront sensing
, 2016 The differential Optical Transfer Function (dOTF) is a focal plane wavefront sensing method that uses a diversity in the pupil plane to generate two different focal plane images.
Brooks, Keira J. +4 more
core +1 more source
Cumulative wavefront reconstructor for the Shack-Hartmann sensor
Inverse Problems & Imaging, 2011 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhariy, Mariya +3 more
openaire +2 more sources
Ophthalmic and Physiological Optics, Volume 45, Issue 7, Page 1581-1590, November 2025.Abstract Introduction This study evaluated the QuickSee autorefractor for measurement of the accommodative response in a cohort of children without significant ametropia, and compared the findings to those determined using the gold‐standard Shin‐Nippon device. Methods Children aged 5–7 years were recruited.
Jane M. Fulton +4 more
wiley +1 more source
Adaptive optics design for high-energy kW-class multi-slab laser amplifiers
High Power Laser Science and EngineeringWe demonstrate real-time wavefront correction in a high-energy high-average-power DiPOLE100/Bivoj laser using adaptive optics. A bimorph deformable mirror and a Shack–Hartmann wavefront sensor reduced wavefront error 10-fold and improved the Strehl ratio
Tomáš Paliesek +4 more
doaj +1 more source
Pupil stabilization for SPHERE's extreme AO and high performance coronagraph system [PDF]
, 2007 We propose a new concept of pupil motion sensor for astronomical adaptive optics systems and present experimental results obtained during the first laboratory validation of this concept.
Beuzit, J. -L. +5 more
core +2 more sources
Spin‐Orbit Photonics with Potato Starch Lenses
Advanced Optical Materials, Volume 13, Issue 21, July 25, 2025.Native potato starch spherulites are introduced as volumetric optical elements that modulate both dynamic and geometric phases of light. These spherulites focus light and generate optical vortices via spin‐orbit interaction, functioning as polarization‐sensitive microlenses. Their unique radial anisotropy enables applications in vortex beam generation,
Petr Bouchal +4 more
wiley +1 more source
Electric Field Conjugation with the Project 1640 coronagraph
, 2013 The Project 1640 instrument on the 200-inch Hale telescope at Palomar Observatory is a coronagraphic instrument with an integral field spectrograph at the back end, designed to find young, self-luminous planets around nearby stars. To reach the necessary
Baranec, Christoph +27 more
core +1 more source
Advanced Photonics Research, Volume 6, Issue 7, July 2025.This work presents a systematic review of atmospheric turbulence fundamentals, including theoretical formulations and adaptive optics‐based mitigation strategies. This includes an in‐depth examination of the devices, theories, and methodologies associated with traditional correction approaches.
Qinghui Liu +5 more
wiley +1 more source
A Shack-Hartmann Sensor for Single-Shot Multi-Contrast Imaging with Hard X-rays
Applied Sciences, 2018 An array of compound refractive X-ray lenses (CRL) with 20 × 20 lenslets, a focal distance of 20cm and a visibility of 0.93 is presented. It can be used as a Shack-Hartmann sensor for hard X-rays (SHARX) for wavefront sensing and permits for true ...
Tomy dos Santos Rolo +7 more
doaj +1 more source