Results 191 to 200 of about 2,674,389 (338)

Single-pixel wavefront sensing via vectorial polarization modulation [PDF]

open access: bronze, 2023
武男 æ�Ž   +5 more
openalex   +1 more source

On the optimization of the geometric pattern for structured illumination based X‐ray phase contrast and dark‐field imaging: a simulation study and its experimental validation

open access: yesJournal of Synchrotron Radiation, EarlyView.
Single‐mask phase contrast and dark‐field imaging methods offer the great advantage of being simple to implement, translating most of the complexity to the numerical side. In this work, we study the impact of the modulation topology on the image quality retrieved both on numerical simulation and experiments.Phase contrast and dark‐field imaging are ...
Clara Magnin   +5 more
wiley   +1 more source

Wide Field Wavefront Sensing

open access: yes, 2011
When observing from the ground one has to deal with the turbulence from the atmosphere and the turbulence caused by the telescope's surroundings. In order to find the best sites for future solar telescopes and develop multi-conjugate adaptive optics (MCAO) for them, the contributions to seeing have to be characterized for heights up to at least 12 km ...
openaire   +2 more sources

Soft X‐rays with orbital angular momentum for resonant scattering experiments at Synchrotron SOLEIL

open access: yesJournal of Synchrotron Radiation, EarlyView.
Characterization and testing of a new setup for absorption and scattering experiments with soft X‐rays carrying an orbital angular momentum at the SEXTANTS beamline of Synchrotron SOLEIL are presented.The paper presents a comprehensive description of a new setup implemented and commissioned at the SEXTANTS beamline of Synchrotron SOLEIL for absorption ...
Pietro Carrara   +17 more
wiley   +1 more source

Data driven drift correction for complex optical systems

open access: yesJournal of Synchrotron Radiation, EarlyView.
Time varying Bayesian optimization as a data driven approach for robust drift correction is outlined, and its application for a split and delay x‐ray optical system is illustrated.To exploit the thousand‐fold increase in spectral brightness of modern light sources, increasingly intricate experiments are being conducted that demand extremely precise ...
Aashwin Mishra   +6 more
wiley   +1 more source

C-BLUE One : A family of CMOS high speed cameras for wavefront sensing [PDF]

open access: green, 2022
J. L. Gach   +12 more
openalex   +1 more source

Patient‐reported outcomes and visual function after four refractive strategies in cataract surgery: A randomized controlled trial

open access: yesActa Ophthalmologica, EarlyView.
Abstract Purpose To evaluate patient‐reported outcome measures (PROMs) and visual function across four groups of public cataract patients: emmetropia, mini‐monovision, monovision with partial‐range of field (RoF) narrow intraocular lenses (IOLs) and patients implanted with partial‐RoF extended IOLs.
Anne Guldhammer Skov   +4 more
wiley   +1 more source

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