Results 281 to 290 of about 342,349 (349)
Use of refractive direct ophthalmoscopy for estimation of refractive error
, 2005 Punita Kumari Sodhi +2 more
openalex +1 more source
Advanced Optical Materials, EarlyView.By combining static and time‐resolved optical, structural, and rheological techniques, we demonstrate that the blue‐shift upon solidification of ethyl cellulose‐acrylic acid mesophases corresponds to the reorientation of cholesteric domains. Modulating the mesophase chain mobility and photopolymerization reaction kinetics enables solid chiral nematic ...
Simona G. Fine +2 more
wiley +1 more source
Extreme Terahertz Nonlinearity of AlGaN/GaN‐Based Grating‐Gate Plasmonic Crystals
Advanced Optical Materials, EarlyView.Plasmonic crystals based on grating‐gated 2D electron gas in AlGaN/GaN heterostructures provide a platform for strong light‐matter interaction. Pump‐probe experiments revealed strong terahertz nonlinearity leading to 45% increase in transmission at a fluence below 350 nJ cm−2.
Pavlo Sai +14 more
wiley +1 more source
Prevalence of Accommodative Insufficiency in Children With Normal Accommodative-Convergence/Accommodation Ratio and Its Association With Refractive Error: A Cross-Sectional Study. [PDF]
CureusChakraborty S +4 more
europepmc +1 more source
Topology Optimization Enables Freeform Matrix Fourier Optics
Advanced Optical Materials, EarlyView.A topology‐optimized freeform metasurface is designed and fabricated to realize matrix Fourier optics, enabling the diffraction of multiple polarization states into distinct far‐field orders. By combining forward design with gradient‐based inverse optimization, high polarization contrast of up to 98.7% is achieved.
Yu‐Tzu Liu +5 more
wiley +1 more source
Prevalence and association of uncorrected refractive error among Chinese adolescents: a cross-sectional study. [PDF]
BMC Public HealthZhou Y +8 more
europepmc +1 more source
Advanced Optical Materials, EarlyView.An optimized fabrication approach for the nanostructuring of optical metasurfaces from van der Waals materials like hexagonal boron nitride is presented. The resonator geometries show enhanced geometric homogeneity, resulting in a significant increase in quality factors of symmetry‐protected bound states in the continuum resonances.
Jonas Biechteler +7 more
wiley +1 more source
Determining the Width of the Dynamic Emission Zone in Light‐Emitting Electrochemical Cells
Advanced Optical Materials, EarlyView.The width of the dynamically evolving emission zone (EZ) in light‐emitting electrochemical cells (LECs) is important since it has a strong influence on the emission efficiency. Here, a spectral simulation and measurement method is presented, which is utilized for the determination of the EZ width evolution during the initial operation of a common ...
Xiaoying Zhang +4 more
wiley +1 more source