Results 91 to 100 of about 147,145 (300)
Effect of Laser Deoxidation on Adhesive‐Bonded Aluminum in an Oxygen‐Free Atmosphere
Advanced Engineering Materials, EarlyView.This study investigates laser ablation of aluminum under oxygen‐free conditions. The goal is to produce oxide‐free substrates that enable improved adhesive bonding with epoxy. Optimized laser parameters (90% overlap, 300 µJ) combined with oxide‐free substrates result in the highest tensile strength of the adhesive bond.
Sandra Gerland +5 more
wiley +1 more source
MEMS-Based Tunable Linear-Cavity Fiber Laser
IEEE Photonics Journal, 2012 A novel tunable fiber laser employing a linear cavity in conjunction with a microelectromechanical system (MEMS) is proposed and experimentally demonstrated.
David Michel, Feng Xiao, Kamal Alameh
doaj +1 more source
Advanced Engineering Materials, EarlyView.This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff +9 more
wiley +1 more source
Computational Temporal Ghost Imaging Using Intensity-Only Detection Over a Single Optical Fiber
IEEE Photonics Journal, 2018 We propose a method of computational temporal ghost imaging over a single optical fiber using simple optical intensity detection instead of coherent detection.
Jiang Tang +8 more
doaj +1 more source
Experimental characterization of Sigma Delta Radio over fiber system for 5G C-RAN downlink
ICT Express, 2020 Radio over Fiber is a promising technology for the 5G Cloud Radio Access Network. We demonstrate experimentally Sigma Delta Radio over Fiber by means of Sigma Delta Modulator (SDM) subsequently replacing expensive digital to analog converters.
Muhammad Usman Hadi +3 more
doaj +1 more source
Assessing Altered Coating Adhesion on Plasma‐Deoxidized Surfaces Under Oxygen‐Free Conditions
Advanced Engineering Materials, EarlyView.This study demonstrates the effectiveness of atmospheric pressure plasma pretreatment in modifying silicon and stainless steel surfaces to improve adhesion. Argon‐hydrogen plasma increases surface roughness and improves adhesion strength, whereas pure argon results in smoother surfaces and structural changes.
Selina Raumel +6 more
wiley +1 more source
Characterization and novel application of power over fiber for electronics in a harsh environment
Journal of InstrumentationAbstract Power-over-Fiber (PoF) technology has been used extensively in settings where high voltages require isolation from ground. In a novel application of PoF, power is provided to photon detector modules located on a surface at ∼ 300 kV with respect to ground in the planned DUNE experiment.
M.A. Arroyave +22 more
openaire +4 more sources
Advanced Engineering Materials, EarlyView.The wettability of aluminum droplets (Al) on different copper substrates (Cu), where liquid Al spreads on solid Cu surfaces to form a liquid–solid interface, is studied numerically and experimentally. The experimental and numerical results show good agreement in the fast‐spreading regime.
Shan Lyu +8 more
wiley +1 more source
65% Efficient Multijunction Photovoltaic Laser Power Converters Operating over 150 W/cm2
PhotonicsMultijunction laser power converters are demonstrated for the first time with high efficiencies for average optical irradiances exceeding 150 W/cm2. The GaAs-based photovoltaic power converting III-V heterostructures are designed with six GaAs subcells ...
Simon Fafard, Denis Masson
doaj +1 more source
Optical laser-generated electricity for powering tilt-meter sensor [PDF]
This research investigated the feasibility and efficacy of power over fiber (PoF) transmission systems for geotechnical monitoring applications, addressing challenges associated with traditional power transmission methods.
Bayuwati, Dwi +8 more
core +2 more sources