Results 121 to 130 of about 2,094,383 (285)

Self-guided propagation of laser pulses reflected at high intensity from plasma mirrors

New Journal of Physics
The reflectivity and optical quality of laser pulses reflected off ${125}\,\mu\mathrm{m}$ Kapton™ tape was investigated for use as a repeatable plasma mirror.
J-N Gruse, N C Lopes, R J Shalloo, J A Hills, A Alejo, T L Audet, M P Backhouse, N Bourgeois, E Gerstmayr, S P D Mangles, K Põder, P P Rajeev, S Rozario, G Sarri, M J V Streeter, J C Wood, Z Najmudin   +16 more
doaj   +1 more source

Simulation‐Based Analysis of Insert Pull‐Out in Nickel‐Polyurethane Hybrid Foams Using CT‐Derived Geometries

Advanced Engineering Materials, EarlyView.
CT‐based finite element simulations combined with in situ X‐ray computed tomography are used to analyze insert pull‐out in nickel‐coated polymer foams. Despite variations in material parameters, deformation consistently concentrates within a narrow annular region around the insert.
Yannik Bautz, Jonas Fell, Hendrik Jost, Stefan Diebels, Hans‐Georg Herrmann   +4 more
wiley   +1 more source

Fabrication Routes for Ionic Conducting Fiber Strain Sensors

Advanced Engineering Materials, EarlyView.
Ionic conducting fiber strain sensors (ICFSs) offer compliant, textile‐integrable sensing. Thus far, the commercialization of ICFSs has been constrained by fiber fabrication routes. This review provides a fabrication‐centric analysis of ICFSs correlating processing strategies with material properties and scalability.
Leo John Kershaw, Zhanhong Yang, Anne Ladegaard Skov, Magdalena Skowyra   +3 more
wiley   +1 more source

Influence of TiC and TiN Ceramic Reinforcements on the Microstructure, Thermal Expansion Behavior, and Tensile Properties of Invar 36 Manufactured by Laser Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
This study examines Invar composites reinforced with titanium carbide (TiC) and titanium nitride (TiN) using laser powder bed fusion (LPBF). It presents the influence of reinforcements on microstructure, tensile properties, and thermal expansion. Results show that TiC effectively strengthens Invar while maintaining low thermal expansion, whereas TiN ...
Ayodeji Nathaniel Oyedeji, Natasha Sacks, Johannes Pötschke, Björn Matthey   +3 more
wiley   +1 more source

Superposed-Laser Electron Acceleration

, 1992
"A new mechanism is proposed for electron acceleration by using two super-posed laser beams in vacuum. In this mechanism, an electron is accelerated by the longitudinal component of the wave electric field in the overlapped region of two laser beams ...
"Maruyama, T., Kawata, S."
core  

The influence of laser focusing conditions on the direct laser acceleration of electrons

New Journal of Physics
Direct laser acceleration of electrons during a high-energy, picosecond laser interaction with an underdense plasma has been demonstrated to be substantially enhanced by controlling the laser focusing geometry.
H Tang, K Tangtartharakul, R Babjak, I-L Yeh, F Albert, H Chen, P T Campbell, Y Ma, P M Nilson, B K Russell, J L Shaw, A G R Thomas, M Vranic, A V Arefiev, L Willingale   +14 more
doaj   +1 more source

PIC Simulation of Enhanced Electron Acceleration in a Double Nozzle Gas Target Using Spatial–Temporal Coupling with Axiparabola Optics

Applied Sciences
In this paper, the results of a Particle-in-Cell (PIC) simulation of electrons accelerated using a 10 fs Top-hat (TH) beam with a limited pulse energy of 85 mJ, focused on a double nozzle gas target using an off-axis parabola (OAP), an axiparabola (AXP),
Valdas Girdauskas, Vidmantas Tomkus, Mehdi Abedi-Varaki, Gediminas Račiukaitis   +3 more
doaj   +1 more source

Gallium Microalloying in Bi–Sn Solders: Interfacial Phase Formation, Wettability, and Long‐Term Shear Reliability Under Isothermal Aging

Advanced Engineering Materials, EarlyView.
Gallium microalloying redirects interfacial reactions in low‐temperature Bi–Sn solders from Cu–Sn toward Cu–Ga intermetallic formation. The resulting Cu–Ga layer suppresses intermetallic growth during thermal aging, alters fracture pathways, and improves interfacial stability.
Iva Králová, Markéta Klimtová, Mohd Faizul Mohd Sabri, Yew Hoong Wong, Petr Veselý, Martin Plaček, Karel Dušek   +6 more
wiley   +1 more source

High‐Entropy Alloy Interlayers Toward Advanced Joining for High‐Performance Structural Applications: Current Progress and Emerging Challenges

Advanced Engineering Materials, EarlyView.
HEA interlayers offer a versatile route for joining high‐performance structural materials. Their compositional and structural design regulates interfacial reactions, suppresses brittle IMCs, and improves metallurgical bonding. Sandwich interlayers further integrate defect healing with precipitation strengthening, enabling improved strength–ductility ...
Lin Yuan, Jiafen Song, Jinglong Li, Jiangtao Xiong, Tao Yang   +4 more
wiley   +1 more source

Electron Energization by Dispersive Alfvén Waves in the Cusp

Geophysical Research Letters
The propagation of kinetic Alfvén waves (assumed sourced from intermittent dayside reconnection) is investigated with a gyrofluid‐kinetic electron model compared with Cluster observations.
P. A. Damiano, A. J. Hull, C. C. Chaston, J. R. Johnson, Y. Lin   +4 more
doaj   +1 more source