Results 211 to 220 of about 2,844,522 (254)

Comparison of Optical Quality After Q-Value-Adjusted LASIK, Topography-Guided LASIK, and Ray-Tracing-Guided LASIK: A Retrospective 3-Month Study. [PDF]

Clin Ophthalmol
He W, Chen J, Dong W, Dai J, Ju J, Zhao Q, Li X.   +6 more
europepmc   +1 more source

Interplay Between Deep Convection and Mesoscale Gravity Waves

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 21, 16 November 2026.
Abstract Although the association between precipitation and mesoscale gravity waves (MGWs) is well documented, the feedback mechanisms governing their amplification remain difficult to isolate. This study uses convection‐permitting numerical simulations with 1–4 km grid spacing to investigate a complex MGW event that occurred over the south‐central ...
Ananya Sen, Michael L. Kaplan, Rajan Bhandari   +2 more
wiley   +1 more source

Micro Aberration Scatter Index (MASI) as an objective proxy for contrast sensitivity after keratorefractive surgery: a prospective observational study. [PDF]

BMC Ophthalmol
Gabrić I, Mosquera SA, Versaci F, Reinstein DZ.   +3 more
europepmc   +1 more source

Multitask Diffractive Deep Neural Networks Enabled by Joint Distance–Frequency Encoding

Nanophotonics, Volume 15, Issue 21, 12 November 2026.
A joint distance–frequency encoding strategy enables a single passive diffractive neural network to switch among four computational tasks. By combining mechanically tunable layer spacing with a dual‐frequency phase‐independent metasurface, the same hardware performs orbital angular momentum classification, direction recognition, logic operations, and ...
Zhengxuan Jiang, Zongmao Fei, Wen Jiang, Guowen Ding, Ke Chen, Yijun Feng   +5 more
wiley   +1 more source

In Vitro Repeatability and Inter-Device Agreement of Higher-Order Aberration Measurements in Scleral Lenses Using Two Hartmann-Shack Metrology Devices. [PDF]

Sensors (Basel)
Viviano F, Iovino M, Macedo-de-Araújo RJ, González-Meijome JM.   +3 more
europepmc   +1 more source

Nanofabrication of Topological Surface Relief Structures in Azopolymers With Tightly Focused Optical Skyrmions

Nanophotonics, Volume 15, Issue 21, 12 November 2026.
We demonstrate the nanofabrication of topological surface relief structures (surface reliefs with a shape like a Möbius strip) in azopolymers using longitudinal electric fields and nano‐scale circular polarization defects (C‐point polarization defect) created by tightly focused optical skyrmions.
Takashige Omatsu, Soki Hirayama, Andra Naresh Kumar Reddy, Masahito Okida, Atsushi Taguchi   +4 more
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

AIM‐Photonics Visible‐to‐Near‐Infrared Silicon‐Nitride‐Based Silicon‐Photonics Platform and Component Library

Nanophotonics, Volume 15, Issue 21, 12 November 2026.
A comprehensive component library is presented for a 300‐mm‐wafer silicon‐nitride foundry platform operating at wavelengths spanning from 450 to 1000 nm. Waveguides, couplers, splitters, crossings, interlayer transitions, polarization devices, sensing‐trench structures, and thermo‐optic phase shifters are experimentally characterized across four ...
Andres Garcia Coleto, Henry Crawford‐Eng, Theodore J. Dahl, Mariel Shapiro, Maria Schnuck, Kyle J. Walsh, Steven T. Lipkowitz, Marcel W. Pruessner, Nathan F. Tyndall, Jacob N. Bouchard, Alin Antohe, Soumen Kar, Patrick J. O'Mullan, Cooper Hurley, Peter Hedlesky, Vijay S. S. Sundaram, Stefan Preble, Kevin McComber, James Eakin, Doug T. Petkie, Lewis G. Carpenter, Todd H. Stievater, Jelena Notaros   +22 more
wiley   +1 more source

Parallel-Channel PIV System for Time-Resolved Measurement of Shock Wave Reflection and Diffraction. [PDF]

Sensors (Basel)
Zhao T, Wu Z, Yang J, Guan J, Li J, Li G.   +5 more
europepmc   +1 more source