Results 71 to 80 of about 7,564 (214)

Characterization and evaluation of laser cladding deposited coatings [PDF]

INCAS Bulletin
The paper contains recent work of the authors regarding the quality of layers deposited with the laser cladding technique. In the field of additive manufacturing, directed energy deposition (DED) in laser cladding presents both opportunities and ...
Alina DRAGOMIRESCU, Mariana CIURDAS, Mihail BOTAN, Sorina ILINA, Nicolae CONSTANTIN   +4 more
doaj   +1 more source

Improving laser cladding productivity with ‘ABA’ cladding

Procedia CIRP, 2022
Daniel Koti, John Powell, K.T. Voisey
openaire   +1 more source

Visible Octave Frequency Combs in Silicon Nitride Nanophotonic Waveguides Driven by Ti:Sapphire Lasers

Laser &Photonics Reviews, EarlyView.
Chip‐based frequency combs are usually pumped from telecom wavelengths, far from the visible. This work instead pumps close to the visible with a Ti:sapphire laser ‐ the source behind the original optical frequency combs and now becoming chip‐integrable‐ and lets silicon‐nitride waveguides convert it into efficient, octave‐spanning visible‐to‐infrared ...
Abdullah Alabbadi, Ewan Allan, Hanna Ostapenko, Pablo Castro‐Marín, Derryck T. Reid, Pascal Del'Haye   +5 more
wiley   +1 more source

A Fully‐Connected Chip‐Integrated Reconfigurable Mode‐Pairing Quantum Key Distribution Network

Laser &Photonics Reviews, EarlyView.
This work constructs a fully connected reconfigurable chip‐integrated quantum key distribution network via the mode‐pairing protocol. Hybrid ECL and WSS chips cut wavelength and port overhead, realizing arbitrary‐user key sharing with merely two wavelengths.
Xiao‐Lei Jiang, Wei Gao, Yan‐Yang Zhou, Yu Zhou, Yu‐Yao Guo, Yi‐Fei Lu, Yuan‐Chao Yu, Yang Wang, Jia‐Ji Li, Chun Zhou, Hong‐Wei Li, Liang‐Jun Lu, Lin‐Jie Zhou, Jian‐Ping Chen, Wan‐Su Bao   +14 more
wiley   +1 more source

Tunable, High Pulse Energy and Narrow Linewidth Gas‐Filled Fiber Laser Across Near‐ and Mid‐Infrared

Laser &Photonics Reviews, EarlyView.
A cascaded gas‐filled anti‐resonant hollow‐core fiber architecture enables broadly tunable infrared Raman lasers spanning ∼1.4–4.6 µm while maintaining microjoule‐level pulse energies and gigahertz‐level linewidths. The approach combines a wavelength‐tunable pump laser with optimized Raman frequency conversion, providing a compact route to high ...
Yazhou Wang, Marcello Meneghetti, Manoj K. Dasa, Timothy Bate, J. E. Antonio‐Lopez, Ian A. Davidson, Qiang Fu, Jaroslaw Rzegocki, Gregory T. Jasion, Francesco Poletti, Rodrigo Amezcua‐Correa, Christos Markos   +11 more
wiley   +1 more source

Quantitative evaluation of LED‐based optical autofocus module

Journal of Microscopy, EarlyView.
Abstract We report an improved version of the open‐source optical autofocus (OAF) module (openAF) for light microscopy, replacing the superluminescent diode (SLD) with a multimode‐optical fibre‐coupled LED as a more accessible AF module light source. We also present a method for independently quantifying AF system performance using 2D autocorrelation ...
S. Habte, S. Kumar, J. Lightley, E. Garcia, M. A. A. Neil, P. M. W. French   +5 more
wiley   +1 more source

ZnO‐Coated Silicon Oxide Nano‐Anode: Synergistic Enhancement of Cycling and Thermal Stability of Lithium‐Ion Batteries

ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 5, September 2026.
Lithium‐ion battery anodes that maintain good performance and excellent stability under high temperature conditions. Silicon oxide (SiO) has great potential as a high‐capacity anode for lithium‐ion batteries, but its practical use is limited by excessive volume expansion (>200%) and rapid capacity fade, especially at high temperatures.
Keren Shi, Wende Yi, Weikang Su, Qiaowei Xiao, Ziyan Wang, Xiaoyu Li, Jingyang Mu, Wufei Tang, Zhihan Peng, Huiqin Yao   +9 more
wiley   +1 more source

Breaking the Size‐Tolerance Trade‐off in Vertical Couplers via Adjoint‐Based Inverse Design

Nanophotonics, Volume 15, Issue 15, 13 August 2026.
A physics‐guided inverse design framework combines physical insight with adjoint optimization by placing dense control points in the phase‐near‐matched region. This guided strategy yields a 20 μm III–V‐on‐silicon coupler with 98.11% efficiency, > 80% efficiency at ± $\mathit{\pm }$ 1.1 μm misalignment, and record high tolerance per unit length ...
Ruiqi Liu, Suo Wang, Zeqiu Liu, Shiyu Mei, Jiahui Chi, Haiyang Yu, Yulian Cao, Jianguo Liu   +7 more
wiley   +1 more source

Analysis and Prediction of Melt Pool Geometry in Rectangular Spot Laser Cladding Based on Ant Colony Optimization–Support Vector Regression

Micromachines
The rectangular spot laser cladding system, due to its large spot size and high efficiency, has been widely applied in laser cladding equipment, significantly improving cladding’s efficiency.
Junhua Wang, Jiameng Wang, Xiaoqin Zha, Yan Lu, Kun Li, Junfei Xu, Tancheng Xie   +6 more
doaj   +1 more source

Prediction and verification of the single cladding layer thickness for laser solid forming

MATEC Web of Conferences, 2018
In order to accurately measure the powder effective utilization rate and to predict the single cladding layer thickness in laser solid forming process, a new method to measure powder distribution density is presented in this paper. Using this method, the
Wang Jun-hua, Han Fu-zhu, Ying Wei-sheng
doaj   +1 more source