Results 101 to 110 of about 659,787 (244)

Plasmon–Exciton Coupling Enhances Second‐Order Nonlinear Response in Borophene–ZnO Hybrid Structures

open access: yesLaser &Photonics Reviews, EarlyView.
Nonlinear interactions between plasmons in borophene and excitons in ZnO lead to enhanced nonlinear and incoherent cathodoluminescence, as well as coherent second harmonic generation, under electron‐beam and laser irradiations, respectively. The anisotropic response of borophene, revealed as in‐plane hyperbolic polariton propagation, acts as a control ...
Maximilian Black   +9 more
wiley   +1 more source

Dependence on average atomic number of coherent/incoherent scattering intensity ratios in compounds

open access: yes, 2004
We have investigated the dependence on average atomic number of coberent/incoherent scattering intensity ratios in molecules. A 75 mCi Am-241 source is used to provide 59.5 keV gamma-rays.
Buyukkasap, E, Kucukonder, A, Sogut, O
core   +1 more source

Chip Scale Emission of Blue Light at Elevated Temperatures in Optical Waveguides Integrated With Rubidium Vapor

open access: yesLaser &Photonics Reviews, EarlyView.
An integrated atom‐clad waveguide enables chip‐scale blue light generation (420 nm) via a two‐photon ladder transition in rubidium vapor at temperatures up to 240°C. The observed bell‐shaped intensity profile reveals a competitive interplay between local photon generation and macroscopic vapor reabsorption.
Arieh Grosman   +4 more
wiley   +1 more source

Engineering Photonic Pigments From Titania–Block Copolymer Composites

open access: yesMacromolecular Rapid Communications, EarlyView.
Ligand‐functionalized TiO2 nanoparticles selectively partition into P2VP‐rich lamellae of onion‐like PS‐b‐P2VP microspheres, increasing refractive index contrast while preserving concentric order through controlled self‐assembly. The resulting dry photonic pigments display defined Bragg reflections and angle‐robust structural color.
Niklas Rocca Schwarz   +5 more
wiley   +1 more source

Photonics Breakthroughs 2025: Three-Dimensional Holographic Incoherent Imaging Through Scattering Media

open access: yesIEEE Photonics Journal
High-resolution three-dimensional (3D) imaging through optically complex media remains a highly desirable yet persistent challenge for numerous applications.
YoonSeok Baek   +2 more
doaj   +1 more source

Disentangling Multiscale Cation-Anion Dynamics in Li<sub>4</sub>(BH<sub>4</sub>)(NH<sub>2</sub>)<sub>3</sub> Using Quasielastic Neutron Scattering. [PDF]

open access: yesSmall Sci
Quasielastic neutron scattering disentangles BH4− and NH2− reorientations from Li+ diffusion through the solid framework and captures long‐range BH4− translation upon melting. These findings establish a unified molecular picture of localized and diffusive motions, clarifying the dynamic landscape of ionic transport in Li4(BH4)(NH2)3.
Abbas M   +6 more
europepmc   +2 more sources

Comparative Effects of Angiotensin Receptor Blockers on Blood Pressure and Serum Urate in Patients With Hypertension and Hyperuricaemia: A Systematic Review and Network Meta‐Analysis

open access: yesMedicine Bulletin, EarlyView.
Allisartan ranked best for serum urate reduction and showed favourable blood pressure control, whereas losartan also performed well overall. These rankings may inform ARB selection but should be interpreted cautiously because of inconsistency, heterogeneity and sparse direct evidence.
Xuanyao Li   +5 more
wiley   +1 more source

First-principles studies of atomic dynamics in tetrahedrite thermoelectrics

open access: yesAPL Materials, 2016
Cu12Sb4S13-based tetrahedrites are high-performance thermoelectrics that contain earth-abundant and environmentally friendly elements. At present, the mechanistic understanding of their low lattice thermal conductivity (
Junchao Li   +5 more
doaj   +1 more source

Diffraction pattern from thermal neutron incoherent elastic scattering and the holographic reconstruction of the coherent scattering length distribution

open access: yes, 2005
The diffraction of spherical waves (S waves) interacting with a periodic scattering length distribution produces characteristic intensity patterns known as Kossel and Kikuchi lines (collectively called K lines).
Rogge, R. B.   +3 more
core   +1 more source

Machine Learning‐Guided Design of Cu–Ni–Sn Alloys With Tailored Ni3Sn/Ni3Sn2 Precipitates

open access: yesMaterials Genome Engineering Advances, EarlyView.
To address the trade‐off between strength and conductivity in Cu–Ni–Sn alloys, this study proposes a new closed‐loop design strategy that integrates machine learning, thermodynamic calculations, and experimental verification from the perspective of “phase selectivity”, providing a new approach for multiphase control and synergistic improvement of multi‐
Fei Tan   +10 more
wiley   +1 more source

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