Results 21 to 30 of about 3,276,689 (342)
Adaptive Optics pre-compensated laser uplink to LEO and GEO.
Optics Express, 2021 We present the results from a Monte Carlo computer simulation of adaptive optics (AO) pre-compensated laser uplink propagation through the Earth's atmospheric turbulence from the ground to orbiting satellites.
J. Osborn +4 more
semanticscholar +1 more source
Optical-component-only adaptive optics
Optics Letters, 2021 This Letter introduces a technique for performing binary adaptive optics, which is carried out by optical components only, without the help of any electronic or optoelectronic device. In this technique, the interferogram produced by a point diffraction interferometer modulates a light-driven crystal. The modulated light-driven crystal may produce pupil-
Pérez Cagigal, Manuel +4 more
openaire +4 more sources
Optofluidic adaptive optics in multi-photon microscopy [PDF]
Biomedical Optics Express, Vol. 14, Issue 4, pp. 1562-1578 (2023), 2022 Adaptive optics in combination with multi-photon techniques is a powerful approach to image deep into a specimen. Remarkably, virtually all adaptive optics schemes today rely on wavefront modulators which are reflective, diffractive, or both. This, however, can pose a severe limitation for applications.
arxiv +1 more source
Nature Communications, 2021 Structured Illumination Microscopy enables live imaging with sub-diffraction resolution. Unfortunately, optical aberrations can lead to loss of resolution and artifacts in Structured Illumination Microscopy rendering the technique unusable in samples ...
Ruizhe Lin +4 more
semanticscholar +1 more source
Adaptive Optics Ophthalmoscopy [PDF]
Annual Review of Vision Science, 2015 This review starts with a brief history and description of adaptive optics (AO) technology, followed by a showcase of the latest capabilities of AO systems for imaging the human retina and by an extensive review of the literature on clinical uses of AO.
Roorda, Austin, Duncan, Jacque L
openaire +5 more sources
IEEE Photonics Journal, 2022 Correction performance of an adaptive optics (AO) system is severely limited by its system latency under high temporal frequency distortions. Wavefront prediction methods has been proven to be an effective way to compensate system delay.
Ning Wang +8 more
doaj +1 more source
MICADO: the E-ELT adaptive optics imaging camera [PDF]
Astronomical Telescopes + Instrumentation, 2010 MICADO is the adaptive optics imaging camera for the E-ELT. It has been designed and optimised to be mounted to the LGS-MCAO system MAORY, and will provide diffraction limited imaging over a wide (~1 arcmin) field of view.
R. Davies +47 more
semanticscholar +1 more source
Accounting for Polychromatic Light in Virtual Shack-Hartmann Wavefront Sensing
Photonic Sensors, 2023 Virtual Shack-Hartmann wavefront sensing (vSHWS) has some significant advantages and is promising for aberration measurement in the field of biomedical optical imaging.
Xian Yue +5 more
doaj +1 more source
Wavefront sensor-less adaptive optics using deep reinforcement learning.
Biomedical Optics Express, 2021 Image degradation due to wavefront aberrations can be corrected with adaptive optics (AO). In a typical AO configuration, the aberrations are measured directly using a Shack-Hartmann wavefront sensor and corrected with a deformable mirror in order to ...
Eduard Durech +3 more
semanticscholar +1 more source
Adaptive Gradient Estimation Stochastic Parallel Gradient Descent Algorithm for Laser Beam Cleanup
Photonics, 2021 For a high-power slab solid-state laser, obtaining high output power and high output beam quality are the most important indicators. Adaptive optics systems can significantly improve beam qualities by compensating for the phase distortions of the laser ...
Shiqing Ma +8 more
doaj +1 more source