Results 71 to 80 of about 89,505 (296)
Sensors, 2022 The use of simpler and less bulky equipment, with a reliable performance and at relative low cost is increasingly important when assembling sensing configurations for a wide variety of applications.
Luís Pereira +6 more
doaj +1 more source
Electrically Pumped, Edge-Emitting, Large-Area Photonic Crystal Lasers with Straight and Angled Facets [PDF]
, 2007 We propose and demonstrate electrically pumped, edge-emitting, large-area photonic crystal lasers. Effective index-guided and Bragg-guided lasing modes are obtained depending on the design of photonic crystal and ...
Chak, Philip +5 more
core +1 more source
Advanced Functional Materials, EarlyView.This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner +9 more
wiley +1 more source
Non-additivity in laser-illuminated many-atom systems
, 2014 We show that atoms subject to laser radiation may form a non-additive many-body system on account of their long-range forces, when the atoms are trapped in the vicinity of a fiber with a Bragg grating.
Kurizki, Gershon +2 more
core +1 more source
Synchrotron Radiation for Quantum Technology
Advanced Functional Materials, EarlyView.Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader +10 more
wiley +1 more source
Crystallography beyond the Bragg Peaks
CHIMIA, 2014 Diffuse scattering contains information on the real structure of disordered crystals that cannot be deduced from conventional structure analysis based on Bragg reflections. In this article the historical development, current state-of-the-art and
Thomas Weber
doaj +1 more source
Stimulation and Enhancement of Near‐Band‐Edge Emission in Zinc Oxide by Distributed Bragg Reflectors
Advanced Materials Interfaces, 2022 The free exciton transition (near‐band‐edge emission, NBE) of ZnO at ≈388 nm can be strongly enhanced and even stimulated by an underlying photonic structure. 1D Photonic crystals, so‐called distributed Bragg reflectors, are utilized to suppress the deep‐
Linda Kothe +4 more
doaj +1 more source
Atomic Size Misfit for Electrocatalytic Small Molecule Activation
Advanced Functional Materials, EarlyView.This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong +3 more
wiley +1 more source
Energy-resolved neutron imaging study of a Japanese sword signed by Bishu Osafune Norimitsu
Scientific ReportsOur research focuses on elucidating the crystallographic structure of Japanese swords in a nondestructive manner using the neutron imaging instrument RADEN at the Materials and Life Science Experimental Facility of the Japan Proton Accelerator Research ...
Kenichi Oikawa +6 more
doaj +1 more source
Long range magnetic ordering in Na$_2$IrO$_3$
, 2011 We report a combined experimental and theoretical investigation of the magnetic structure of the honeycomb lattice magnet Na$_2$IrO$_3$, a strong candidate for a realization of a gapless spin-liquid.
Berlijn, T. +9 more
core +1 more source