Results 111 to 120 of about 837,694 (400)

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

open access: yesAdvanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai   +8 more
wiley   +1 more source

Method for attaching a fused-quartz mirror to a conductive metal substrate [PDF]

open access: yes, 1977
A fused-quartz mirror is attached to a conductive metal substrate by the following steps: tinning one surface of a fused-quartz mirror with a solder of substantially pure indium; tinning a metallic substrate with an indium eutectic alloy consisting ...
Mckeown, D., Sonnenschein, G.
core   +1 more source

Transmission matrix of a uniaxial optically active crystal platelet

open access: yes, 2005
Expressions corresponding to the transmission of a uniaxial optically active crystal platelet are provided for an optical axis parallel and perpendicular to the plane of interface.
Bassiri   +22 more
core   +3 more sources

Revisiting the paradigm of silica pathogenicity with synthetic quartz crystals: the role of crystallinity and surface disorder

open access: yesParticle and Fibre Toxicology, 2015
BackgroundExposure to some - but not all - quartz particles is associated to silicosis, lung cancer and autoimmune diseases. What imparts pathogenicity to any single quartz source is however still unclear.
F. Turci   +8 more
semanticscholar   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

open access: yesAdvanced 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

Ultraviolet filter [PDF]

open access: yes, 1969
Ultraviolet filter of thorium fluoride and cryolite on quartz ...
Holmes, S. J.
core   +1 more source

Ab initio studies of phonon softening and high pressure phase transitions of alpha-quartz SiO2

open access: yes, 2006
Density functional perturbation theory calculations of alpha-quartz using extended norm conserving pseudopotentials have been used to study the elastic properties and phonon dispersion relations along various high symmetry directions as a function of ...
D. C. Wallace   +13 more
core   +1 more source

From Low Symmetry to High Dissymmetry: Chiral Plasmonic Films of Binary and Nanobipyramid Assemblies

open access: yesAdvanced Functional Materials, EarlyView.
This work develops highly dissymmetric chiral plasmonic thin films by helically assembling gold nano bipyramids within a liquid‐crystal template. Engineering of the chiroptical response is achieved by varying particle size and geometry, as well as preparing binary assemblies.
Martyna Wasiluk   +10 more
wiley   +1 more source

Crystalline Silica Particles Mediated Lung Injury

open access: yesKONA Powder and Particle Journal, 2014
Epidemiological studies have shown that the occupational exposure of crystalline silica can lead to silicosis and other lung injury.
Debamitra Dutta, Brij M. Moudgil
doaj   +1 more source

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