Results 71 to 80 of about 1,253,373 (239)

Research on microstructure of copper coatings on AlN ceramic surface by laser cladding and brazing

open access: yesMaterials Research Express, 2020
The preparation of Cu-based coatings on AlN ceramic surface was accomplished by laser cladding and brazing technology. The Cu-based coating was prepared by both copper powder and titanium powder on ceramic surface.
Jian Zhao   +6 more
doaj   +1 more source

Laser cladding for epitaxial nickel base superalloys turbine blades [PDF]

open access: yes, 2014
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2014.A prosperidade e larga utilização da aviação como meio de transporte civil, nacional e ...
Schweitzer, Luiz Guilherme de Souza
core  

Friction behavior of laser cladding magnesium alloy against AISI 52100 steel [PDF]

open access: yes, 2012
The use of magnesium alloys in engineering applications is becoming increasingly important as a relatively low density allows savings in energy consumption and therefore reduction in air pollution.
J.E. Masse   +3 more
core   +1 more source

Innovations in laser cladding and direct metal deposition

open access: yes, 2022
Paper 823904The present paper reviews recent progress in productivity, precision and quality of laser-based cladding and additive layer manufacturing. Recently, we have demonstrated the great benefits obtained from induction assisted laser cladding. This
Brückner, F., Leyens, C., Nowotny, S.
core   +1 more source

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

open access: yesLaser &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   +5 more
wiley   +1 more source

Semiconductor Laser with Electrically Modulated Frequency

open access: yesPhotonics
We propose a novel method for controlling the frequency of semiconductor lasers. This technique facilitates the production of devices with fast frequency tuning and intrinsic linearization of laser frequency sweeps.
Boris Laikhtman   +2 more
doaj   +1 more source

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

open access: yesLaser &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   +14 more
wiley   +1 more source

Efficient fiber-laser pumped Ho:LuLiF4 laser

open access: yes, 2010
We present results for an efficient Ho:LuLiF4 laser in-band pumped by a cladding-pumped Tm-doped silica fiber laser. The polarized, tunable Tm-doped silica fiber-laser operates at 1938 nm, ideally suited for in-band pumping the 40 mm long weakly-doped (0.
Veronesi, S.   +11 more
core   +1 more source

Novel progress of laser cladding and its applications in material fabrication

open access: yesCailiao gongcheng
Laser cladding uses a high-energy laser to rapidly melt cladding materials with the substrate surface, forming a metallurgically bonded coating upon solidification.
DONG Shiyun   +3 more
doaj   +1 more source

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

open access: yesLaser &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   +11 more
wiley   +1 more source

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