Results 191 to 200 of about 189,401 (272)

Optical Second‐ and Third‐Order Nonlinearities in Plasma‐Enhanced Chemical Vapor Deposition‐Grown Silicon Oxides and Silicon Nitrides

Advanced Photonics Research, EarlyView.
Applying a static electric field EDC to plasma‐enhanced chemical vapor deposition‐grown nonstoichiometric silicon oxides and silicon nitrides creates a voltage‐controllable optical second‐order nonlinearity χquasi(2)$\chi_{\text{quasi}}^{\left(\right. 2 \left.\right)}$.
Laurids Wardenberg, André Kühling, Jörg Schilling   +2 more
wiley   +1 more source

Efficacy of Photorefractive Keratectomy vs. Topography-Guided Photorefractive Keratectomy for Refractive Errors and Aberrations Post-Penetrating Keratoplasty. [PDF]

J Clin Med
Kijonka M, Nowińska A, Wylęgała A, Orzechowska-Wylęgała B, Dugiełło B, Kryszan K, Wylęgała E.   +6 more
europepmc   +1 more source

A large-scale analysis of refractive errors in students attending public primary schools in Mexico. [PDF]

Sci Rep, 2023
Ramírez-Ortiz MA, Amato-Almanza M, Romero-Bautista I, Klunder-Klunder M, Aguirre-Luna O, Kuzhda I, Resnikoff S, Eckert KA, Lansingh VC.   +8 more
europepmc   +1 more source

Evaluation of the measurement of refractive error by the PowerRefractor: a remote, continuous and binocular measurement system of oculomotor function [PDF]

, 2003
Olivia Hunt
openalex   +1 more source

Effect of Core Geometry on Frequency Correlations and Channel Capacity of a Multimode Optical Fiber

Advanced Photonics Research, EarlyView.
Structured wavefronts focused at the output of multimode fibers reveal a distinct spatial dependence of frequency correlation bandwidth between circular and rectangular cores. Unlike conventional circular‐core fibers, rectangular‐core fibers maintain uniform bandwidth across all transverse locations, enabling over a 20% increase in channel capacity for
Henry C. Hammer, Ravitej Uppu
wiley   +1 more source

Changes in the thickness of the crystalline lens components before and after cycloplegia in children with different refractive errors. [PDF]

J Optom
Bao Y, Zhang Z, Cao J, Ma Y, Yu Y, Wang Z, Niu L, Wang X, Zhou X, Huang J, Zhao J.   +10 more
europepmc   +1 more source

Distribution of Axial Length in Australians of Different Age Groups, Ethnicities, and Refractive Errors. [PDF]

Transl Vis Sci Technol, 2023
Nilagiri VK, Lee SS, Lingham G, Charng J, Yazar S, Hewitt AW, Griffiths LR, Sanfilippo PG, Tsai TH, Mackey DA.   +9 more
europepmc   +1 more source

Visual acuity and refractive errors in a suburban Danish population: Inter99 Eye Study [PDF]

, 2004
Line Kessel, Jesper Leth Hougaard, Claus Mortensen, Torben Jørgensen, Henrik Lund‐Andersen, Michael Larsen   +5 more
openalex   +1 more source

Analysis of Band Effects in One‐Dimensional Periodic Lattices Using an Enhanced Homogenization Method

Advanced Photonics Research, EarlyView.
An enhanced homogenization method for periodic lattices, applicable to any asymmetrical multipart structures, is proposed. This method simplifies intricate gratings into slab waveguides, predicts guided‐mode resonances and bound states in the continuum, without relying on numerical methods.
Atefe Taheri, Mehrdad Shokooh‐Saremi
wiley   +1 more source

Impact of Peripheral Refractive Errors in Mobility Performance. [PDF]

Invest Ophthalmol Vis Sci
García-Pedreño C, Tabernero J, Benito A, Artal P.   +3 more
europepmc   +1 more source