Results 171 to 180 of about 10,131,834 (310)

Chiral Supramolecular Templating Enables Tunable Second‐Harmonic Generation in Hybrid Zinc Thiocyanates

open access: yesAngewandte Chemie, EarlyView.
Chiral supramolecular templates derived from natural amino acids direct the spatial organization of SHG‐active [Zn(SCN)4]2− units, enabling diverse second‐harmonic generation in hybrid zinc thiocyanates. ABSTRACT Chiral organic molecules have been widely used to construct hybrid nonlinear optical (NLO) materials with second‐harmonic generation (SHG ...
Xuemei Wen   +6 more
wiley   +2 more sources

Artificial Intelligence for Fluorite Ferroelectric Materials: From Discovery to Optimization

open access: yesAdvanced Electronic Materials, EarlyView.
Artificial intelligence accelerates the discovery and optimization of HfO2‐based fluorite ferroelectrics by linking synthesis, structure, properties, and device performance. Machine learning, deep‐learning analysis, and AI‐driven atomistic modeling enable predictive design, dopant screening, and closed‐loop optimization toward next‐generation ...
Faizan Ali   +3 more
wiley   +1 more source

Dopant‐Tailored Matrices: A Crystal Engineering Strategy for Organic Room‐Temperature Phosphorescent Host–Guest Systems and Beyond

open access: yesAngewandte Chemie, EarlyView.
Rather than selecting dopants to match a pre‐existing host matrix, the dopant‐tailored matrix strategy involves rational engineering of host matrices around a preselected class of dopants by targeting matrix packing motifs that promote synergistic host‐dopant interactions upon doping.
Catherine Demangeat   +7 more
wiley   +2 more sources

Free-space optical communications at 4 Gbit/s data rate with a terahertz laser. [PDF]

open access: yesCommun Phys
Elumalai J   +9 more
europepmc   +1 more source

Stabilization of Ultrafast Domain Wall Motion by Edge‐Anisotropy Engineering in Ferrimagnetic Nanowires

open access: yesAdvanced Electronic Materials, EarlyView.
Localized laser annealing transforms distorted, edge‐pinned domain‐wall motion in ferrimagnetic Pt/GdFe nanowires into straight, stable, and ultrafast propagation. Experiments and micromagnetic simulations reveal an optimum anisotropy‐engineering window in which moderate edge softening suppresses pinning, whereas excessive anisotropy reduction or ...
Mojtaba Mohammadi   +5 more
wiley   +1 more source

Coherent Modulation for Free-Space Optical Communications: Impact of Turbulence and Link Optimization

open access: yes
The performance of coherent free-space optical (FSO) communications systems is degraded by the adverse effects of atmospheric turbulence. We review the impact of atmospheric turbulence on coherent FSO through simulation and experiment, as well as discuss
Gladysz, Szymon   +2 more
core   +1 more source

Overcoming the Phase Discontinuity Problem in RIS Optimization: A Robust and Scalable Phase‐Aware Deep Regression Framework via Hybrid CNN–LSTM Architecture

open access: yesAdvanced Intelligent Systems, EarlyView.
The phase discontinuity problem—where the cyclic nature of phase angles causes catastrophic errors near the ±π boundary—is a fundamental obstacle in learning‐based reconfigurable intelligent surface (RIS) optimization. A phase‐aware hybrid CNN–LSTM framework resolves this by decomposing phase predictions into sine–cosine components, mapping circular ...
Seda Savaşçı Şen   +3 more
wiley   +1 more source

Free‐Space Optical Communication

open access: yesNanophotonics
Vivek Ashok Bohara, Swaminathan R
openaire   +2 more sources

Cross‐Sectoral AI Integration Is Essential to Tackling Food Waste and Food Insecurity: A Roadmap for Developing Resilient Food Systems

open access: yesAdvanced Intelligent Systems, EarlyView.
As food insecurity and global food demands surge, artificial intelligence (AI)‐based technologies offer promising opportunities to reduce food loss and waste. In this perspective, current AI adoption across the food supply chain is assessed using various academic, industry, and policy sources.
Akansha Prasad   +5 more
wiley   +1 more source

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