The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi +3 more
wiley +1 more source
Efficient higher-order mode filtering in multimode optical fiber based on an optical microwire
We report the use of an optical microwire (OMW) with specifically designed transition region as an efficient tool to filter higher-order modes in multimode waveguides.
Brambilla, Gilberto +2 more
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Three-dimensional nanophotonics with spatially modulated optical properties. [PDF]
Salamin Y +19 more
europepmc +1 more source
Laser Powder Bed Fusion of Alumina: Effects of Scanning Strategies on External and Internal Defects
This study investigates how scanning strategies affect pure alumina in laser powder bed fusion. Linear 45° scanning yields uniform surfaces but high porosity, while the island‐concentric strategy provides higher density with through‐holes favorable for infiltration. Findings highlight pathways toward optimizing defect‐free alumina parts.
Mohamed Abdelmoula +7 more
wiley +1 more source
Simple analytical solutions for the optical properties of multilayered confocal prolate spheroids in the quasistatic approximation. [PDF]
Ali M, Huang F.
europepmc +1 more source
This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera +8 more
wiley +1 more source
PROPERTIES OF OPTICAL DESIGN MODULES
QC 351 A7 no. 75In the first part of this report the class of two-surface optical systems designated as modules, which have zero third-order spherical aberration relative to a pair of conjugate planes one of which is at infinity, has been further ...
Mercado, R. I.
core
Investigating magnetic and optical properties and morphology of a nanocomposite of intercalated layered material and polymer compounds. [PDF]
El-Meligi AA +4 more
europepmc +1 more source
Planar Solid‐State Nanopores Toward Scalable Nanofluidic Integration Based on CMOS Technology
We present a scalable silicon‐based fabrication strategy for planar solid‐state nanopores to enable their integration with complex nanofluidic systems. Prototype devices demonstrate normal voltage‐current characteristics, good noise performance, and appreciable streaming currents. Our CMOS‐compatible fabrication process offers precise geometric control
Ngan Hoang Pham +7 more
wiley +1 more source
Optical Properties of “Black Silicon” for Solar Cells Application Formed by Laser Radiation
“Black silicon” can be formed by different methods, such as chemical, electrochemical etching and laser assisted chemical etching. Si structures produced by these methods can be used for solar cells, sensors, medical application and etc. In this work we
Daukšta, Edvīns +5 more
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