Results 51 to 60 of about 1,253,373 (239)

Suppressing Photothermal Artifacts in Flexible Fluorescent Fiber‐Optic Sensors for Accurate and Precise In Situ Temperature Monitoring

Advanced Science, EarlyView.
A partial‐inner‐cladding optical fiber (PICOF) is developed to suppress photothermal artifacts in fluorescent fiber‐optic thermometry by isolating the sensing layer from regions prone to photothermal effects. This structural design strategy enables high‐fidelity operation at elevated excitation power, achieving high accuracy (maximum absolute error ...
Sijie Su, Jinjian Yu, Pengyuan Dong, Xin Wang, Jing Lyu, Jiulin Gan, Enhai Song, Qinyuan Zhang   +7 more
wiley   +1 more source

Laser-powder-material interactions in the laser cladding process [PDF]

Le Journal de Physique IV, 1994
In this paper we present briefly two possible approaches for modelling the laser cladding process. The first approach is 2D and consists in finding the shape of the molten pool given the fraction of the laser power which is available at the surface of the workpiece and given the amount of powder sticking to the molten pool.
Picasso, M., Rappaz, M.
openaire   +3 more sources

Effects of Process Parameters on Microstructure and Properties of In-situ synthesized WC-reinforced Ni-based Cladding Layer

Materials Research
A novel tungsten carbide (WC)-reinforced nickel (Ni)-based laser cladding layer was prepared through an in-situ synthesis process. The mechanism of the effect of scanning rates and laser power on the microstructures, wear and corrosion resistance of in ...
Cong-xiao Zhang, Wan-chang Sun, Er-yong Liu, Yu-wan Liu, Jing-pei Liu, Bo Zhang, Meng-ran Zhou, Yi-fan Xu   +7 more
doaj   +1 more source

The Design of Reflected Laser Intensity Testing System and Application of Quality Inspection for Laser Cladding Process

Machines, 2022
Laser cladding is one of the critical technologies for additive manufacturing and rapid repair. Improving cladding performance by materials and process parameters is the leading research direction, but defects and instability of quality in the cladding ...
Yingtao Zhang, Guangming Lv, Yaguan Li, Zirong Tang, Zhenguo Nie   +4 more
doaj   +1 more source

High‐Efficiency InGaP‐on‐Insulator Microresonator Nonlinear Conversion and Entanglement Generation

Advanced Science, EarlyView.
Sulfur treatment of InGaP‐on‐Insulator (InGaP‐OI) significantly reduces surface roughness, passivates surface states, and lowers propagation loss at visible wavelengths, enabling efficient nonlinear frequency conversion and photon‐pair generation.
Xuefeng Li, Lillian Thiel, Yiming Pang, Amalu Shimamura, Lucas Wang, Joshua E. Castro, Max Meunier, Nicholas Lewis, John E. Bowers, Kevin L. Silverman, Richard P. Mirin, Galan Moody   +11 more
wiley   +1 more source

A Comprehensive Review on Additive Manufacturing of Smart Components: Technologies, Applications, and Future Scope

Advanced Intelligent Systems, EarlyView.
How can additive manufacturing enable components that sense, adapt, heal, and power themselves? This review synthesizes recent advances in smart functionalities, manufacturing technologies, and intelligent design strategies, revealing a pathway toward fully integrated, autonomous, and multifunctional systems across diverse engineering sectors. Additive
Aiswarya Rony, P. M. Ushasree, Michael Short, Jinoop Arackal Narayanan   +3 more
wiley   +1 more source

Compositionally Engineered Carboxymethyl Cellulose‐Based Optical Fibers With Exceptionally Low Optical Loss and Quantitative Humidity Sensing

Advanced Physics Research, EarlyView.
Carboxymethyl cellulose‐based biopolymer optical fibers are fabricated using aqueous wet spinning. The fibers exhibit record‐low optical attenuation in polysaccharide‐based waveguides while maintaining efficient transmission across the visible‐to‐near‐infrared region of the electromagnetic spectrum.
Jani Patrakka, Alizee Sanouillet, Ville Hynninen, Nonappa   +3 more
wiley   +1 more source

Detection of Legionella Bacteria Using a Silicon‐Based Photonic Microring Resonator Biosensor Enhanced by Dielectrophoresis

ELECTROPHORESIS, EarlyView.
Silicon photonic biosensors enable label‐free, highly sensitive detection but struggle with living bacteria due to inefficient cell binding on nanoscale surfaces. We integrate a microring resonator with a dielectrophoretic electrode, actively concentrating Legionella cells near the sensor using alternating electric fields.
Anders Henriksson, Philipp Schrenk, Jamie R. K. Marland, Andreas Tsiamis, Ha Duong Ngo, Jörg König, David Schreier, Stewart Smith, Han Zhang, Arum Han, Peter Neubauer, Mario Birkholz   +11 more
wiley   +1 more source

Cellular automaton model for the simulation of laser cladding profile of metal alloys

Materials & Design, 2020
Based on the mechanism of laser-powder interaction and droplet forming method, a cellular automaton simulation model of laser cladding layer morphology is introduced.
Qing Chai, Chen Fang, Junyang Hu, Yan Xing, Dongliang Huang   +4 more
doaj   +1 more source

Body‐integrated photonic biosensors: Illuminating the path to active healthcare

FlexMat, EarlyView.
Body‐integrated photonic biosensors are promising tools for active healthcare. These optical devices can be worn, implanted, or swallowed to monitor health signals continuously. This review introduces key sensing modalities, including fluorescence, colorimetry, SPR, LSPR, SERS, and light‐modulating materials.
Jiayue Gu, Xingming Wen, Qihang Yan, Yining Zhao, Linghao Yuan, Siyuan Chen, Yue Ma, Zhengyue Fang, Dong Lei, Yuxin Liu, Ze Xiong   +10 more
wiley   +1 more source