Results 131 to 140 of about 94,721 (285)

Shaped electrodes for adaptive X‐ray optics

Journal of Synchrotron Radiation, EarlyView.
For adaptive X‐ray optics on high‐performance beamline optical systems, we describe an approach to mirror figure and slope control using patterned, shaped electrodes to control the local curvature on a lithium niobate substrate from a single applied voltage. Longitudinally continuous electrode patterns achieve target shapes without discontinuities, and
Kenneth A. Goldberg, Francesco Marzari, Grant D. Cutler   +2 more
wiley   +1 more source

Corneal power modelling with OCT data – Thin and thick lens paraxial models versus raytracing

Acta Ophthalmologica, EarlyView.
Abstract Background Evaluating keratometric power with Zeiss index (PKZ), paraxial thick cornea power (Gullstrand [PG]) and power referenced to the front (PFV) and back vertex plane (PBV) and raytracing power (PR), and modelling the deviation from PKZ with a multivariable linear prediction model.
Achim Langenbucher, Nóra Szentmáry, Alan Cayless, Peter Hoffmann, Jascha Wendelstein   +4 more
wiley   +1 more source

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

Acta 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, Morten la Cour, Birgitte Moldow, Lars Holm, Therese Krarup   +4 more
wiley   +1 more source

Wave Tracing: Generalizing The Path Integral To Wave Optics

Computer Graphics Forum, EarlyView.
Abstract Modeling the wave nature of light and the propagation and diffraction of electromagnetic fields is crucial for the accurate simulation of many phenomena, yet wave simulations are significantly more computationally complex than classical ray‐based models.
Shlomi Steinberg, Matt Pharr
wiley   +1 more source

Large dynamic range Shack-Hartmann wavefront sensing based on a graph-theoretic computational model. [PDF]

Light Sci Appl
Du L, Xu R, Liu S, Shao R, Li L, Zhang Y, Li Z, Qu Y, Tian D, Yang J.   +9 more
europepmc   +1 more source

Characterization of AV Nodal Left Inferior Extension by Use of High‐Density Mapping and Voltage‐Time Relationship

Journal of Cardiovascular Electrophysiology, EarlyView.
High resolution voltage LA map is shown with Ripple mapping during sinus rhythm prior to atrial fibrillation ablation (panel A‐D, top row Left Anterior Oblique view, bottom row Left Anterior Oblique Caudal view). Chamber activation is visualized by white Ripple bars, proceeding from the septum and septal roof (panel A), spreading clockwise and ...
June K. Pickett, Joshua R. Hirsch, Michael Charles C. Tan, Abdi Rasekh, Joanna E. Molina‐Razavi, Mehdi Razavi, Mihail G. Chelu, Payam Safavi‐Naeini, Mohammad Saeed   +8 more
wiley   +1 more source

Single-shot, reference-less computational wavefront sensing for complex optical fields. [PDF]

Light Sci Appl
Gao Y, Cao L, Tsai DP.
europepmc   +1 more source

Left Atrial Posterior Wall Functional Remodeling in Paroxysmal and Persistent Atrial Fibrillation. A Pilot Study

Journal of Cardiovascular Electrophysiology, EarlyView.
ABSTRACT Background The left atrial posterior wall (LAPW) is often targeted in atrial fibrillation (AF) ablation due to its shared properties with pulmonary veins. However, substrate‐guided approaches using structural markers have shown inconsistent results.
Michael M. Malaty, Natasha Trevaskis, Kerissa Govender, Aaron L. Sverdlov, Bradley R. Wilsmore, Malcolm Barlow, Nicholas Jackson, Gwilym M. Morris   +7 more
wiley   +1 more source

Reconstruction of Misalignment Aberrations for Cylindrical Surfaces with Complex Parameters in Pseudo Lateral Shearing Interferometry. [PDF]

Sensors (Basel)
Ren Y, Luo W, Chen Y, Zhao L, He L, Zhang S, Hai K, Zhang X, Zang Z.   +8 more
europepmc   +1 more source

Hyperspectral tomographic diffractive microscopy: Development and applications

Journal of Microscopy, EarlyView.
Abstract Tomographic Diffractive Microscopy (TDM) provides label‐free three‐dimensional imaging of transparent samples with resolution surpassing confocal limits. At IRIMAS, successive instrumental developments since 2009 have enhanced TDM capabilities through transmission, reflection, isotropic, polarisation‐sensitive, and dual‐view configurations ...
Leonardo Pestana Legori, Carlos Alberto Chacón Ávila, Matthieu Debailleul, Nicolas Verrier, Olivier Haeberlé   +4 more
wiley   +1 more source