Results 91 to 100 of about 1,288 (199)

Broadband Spin-Selective Wavefront Manipulations Based on Pancharatnam–Berry Coding Metasurfaces

open access: yesACS Omega, 2021
Yue Gou   +5 more
doaj   +1 more source

Semi‐Automated μCT‐Based Modeling of Vertebral Bony Endplate Microporosity and Mechanical Properties: Linking Microstructure to Inferred Mechanical Performance

open access: yesJOR SPINE, Volume 9, Issue 3, September 2026.
ABSTRACT Background The vertebral bony endplate (BEP) plays a role in regulating both mechanical load transfer and nutrient transport to the intervertebral disc, functions strongly influenced by its microstructural porosity. Variations in porosity impact bone strength, elasticity, and solute diffusion, affecting its overall mechanical competence ...
Ahmad Alminnawi   +5 more
wiley   +1 more source

Metrology for Quantum Hardware Standardization—Charting a Pathway: A Strategic Review

open access: yesIEEJ Transactions on Electrical and Electronic Engineering, Volume 21, Issue 9, Page 1282-1296, September 2026.
Advances in quantum mechanics have long underpinned metrology by enabling practical realizations of units through quantum effects. With the 2019 SI revision, traceability is anchored in defined fundamental constants, reinforcing the quantum‐mechanical basis of modern standards. In parallel, quantum technologies are transitioning from laboratory science
Nobu‐Hisa Kaneko
wiley   +1 more source

End‐to‐End Deep Learning Framework for Freeform Metasurfaces via Non‐Uniform Rational B‐Splines Meta‐Atoms

open access: yesNanophotonics, Volume 15, Issue 15, 13 August 2026.
This work presents a NURBS‐enabled metasurface design framework that combines freeform meta‐atom parameterization with Transformer‐based deep learning. The unified mathematical representation expands geometric degrees of freedom while enabling efficient optical‐response prediction and inverse design.
Kaipeng Liu   +11 more
wiley   +1 more source

On-Chip Metasurface Multi-Channel Multiplexed Holography Based on Detour Phase

open access: yesPhotonics
While spatially transmissive or reflective metasurfaces have achieved unprecedented wavefront control in free space, the paradigm shift toward on-chip waveguide-integrated architectures presents novel challenges for constructing compact and scalable ...
Ceyun Zheng   +8 more
doaj   +1 more source

Decoupling Backward Scattering Control and Forward Beamformed Communication in a Shared‐Aperture Retro‐Reflective/Transmissive Metasurface

open access: yesNanophotonics, Volume 15, Issue 15, 13 August 2026.
Conceptual illustration of the retro‐reflective and transmissive metasurface (RRTM). The blue radar establishes communication with the UAV via the transmissive mode, whereas the purple surveillance radar acquires the status of friendly units through the retro‐reflective mode and the two modes operate simultaneously within the same decoupled aperture ...
Shulei Zhang   +8 more
wiley   +1 more source

Broadband Electromagnetic Field Prediction at Unseen Wavelengths via Physics‐Guided Neural Operators

open access: yesNanophotonics, Volume 15, Issue 15, 13 August 2026.
A physics‐guided neural operator is trained on electromagnetic field distributions at discrete wavelengths across diverse nanophotonic structures. At inference, given any permittivity map and query wavelength, the model predicts continuous broadband electric‐field distributions with full‐wave accuracy, including wavelengths unseen during training ...
Joonhyuk Seo   +3 more
wiley   +1 more source

Metasurface‐Enabled Active‐Like Passive Radar

open access: yesAdvanced Science, Volume 13, Issue 44, 7 August 2026.
A programmable space‐time‐coding metasurface embeds distinct spatiotemporal tags into ambient wireless signals, allowing passive radar to operate in an active‐like manner. By enabling code‐correlated reconstruction under interference, the approach supports robust real‐time UAV tracking in complex environments and points to intelligent, low‐power ...
Mingyi Li   +7 more
wiley   +1 more source

The Influence of Fault Rupture Velocity on Ground Motions and Building Demands in the Near‐Fault Region

open access: yesEarthquake Spectra, Volume 42, Issue 3, August 2026.
With the recent increases in measured ground motion records for large earthquakes, most notably the 2023 M7.8 Pazarcik earthquake in Türkiye, the potential for pervasive high velocity fault rupture propagation over an extensive fault length has been observed.
David McCallen   +3 more
wiley   +1 more source

Advances in Position‐Momentum Entanglement: A Versatile Tool for Quantum Technologies

open access: yesLaser &Photonics Reviews, Volume 20, Issue 15, 7 August 2026.
Position–momentum entanglement constitutes a high‐dimensional continuous‐variable resource in quantum optics. Recent advances in its generation, characterization, and control are reviewed, with emphasis on spontaneous parametric down‐conversion and modern measurement techniques.
Satyajeet Patil   +6 more
wiley   +1 more source

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