scholarly journals Laser plume containment during flexible transnasal laryngoscopy

2021 ◽  
Vol 6 (2) ◽  
pp. 234-243
Author(s):  
Henry T. Hoffman ◽  
Jarrett E. Walsh ◽  
Alessandra Pratt ◽  
Robert M. Miller ◽  
Adam Schwalje ◽  
...  
Keyword(s):  
Laser Plume

Effect of laser-plume interaction on part quality in multi-scanner Laser Powder Bed Fusion

2021 ◽  
Vol 38 ◽  
pp. 101810
Author(s):  
Christian Tenbrock ◽  
Tobias Kelliger ◽  
Niklas Praetzsch ◽  
Marcel Ronge ◽  
Lucas Jauer ◽  
...  
Keyword(s):  
Powder Bed Fusion ◽  
Laser Powder Bed Fusion ◽  
Laser Plume ◽  
Powder Bed ◽  
Part Quality

Source of Excimer Laser Plume Photographs Acknowledged

1998 ◽  
Vol 14 (1) ◽  
pp. 18-18
Author(s):  
Alfred Vogel ◽  
Ronald R Krueger
Keyword(s):  
Excimer Laser ◽  
Laser Plume

A Novel Approach to Nanoscale Materials Synthesis Using Industrial Laser Processing of Organosilazane Liquid Precursors

1990 ◽  
Vol 206 ◽  
Author(s):  
Tongsan D. Xiao ◽  
Peter R. Strutt ◽  
Kenneth E. Gonsalves
Keyword(s):  
Ceramic Powder ◽  
Average Diameter ◽  
Current Approach ◽  
Powder Materials ◽  
Materials Synthesis ◽  
Laser Plume ◽  
New Approach ◽  
Novel Approach ◽  
Liquid Precursors ◽  
Short Time

ABSTRACTA new approach has been developed for the synthesis of nanoscale ceramic powder materials from liquid organosilazane precursors. This technique, by exploiting fast kinetic chemical and physical reactions, makes it possible to synthesize significant quantities of material in a relatively short time. In the current approach aerosols of a silazane monomer, (CH3SiHNH)n, (n = 3 or 4), of mol. wt. 280–320, are injected into the beam of a cw industrial CO2 laser to obtain nanoscale ceramic powders. Injection of the aerosol into the laser-beam results in a high-temperature plume. Rapid condensation of the molecular precursor species emerging from the laser plume results in the formation of preceramic polymer particles, with an average diameter of 62 nm. One attractive feature of this process is that 70 wt.% of the liquid precursor is converted into nanoscale powders. Another feature is that only a further 10 wt.% loss occurs during post thermal treatment to form the end-product.

Proposal for a standard for laser plume filter technology

1994 ◽  
Vol 6 (2) ◽  
pp. 108-110 ◽  
Author(s):  
Douglas E. Ott
Keyword(s):  
Laser Plume

scholarly journals Influence of Gas Flow Speed on Laser Plume Attenuation and Powder Bed Particle Pickup in Laser Powder Bed Fusion

JOM ◽  
2020 ◽  
Vol 72 (3) ◽  
pp. 1039-1051
Author(s):  
Haopeng Shen ◽  
Paul Rometsch ◽  
Xinhua Wu ◽  
Aijun Huang
Keyword(s):  
Gas Flow ◽  
Flow Speed ◽  
Powder Bed Fusion ◽  
Laser Powder Bed Fusion ◽  
Laser Plume ◽  
Powder Bed

Laser plume spectroscopy. 1. Graphite target

2005 ◽  
Vol 35 (5) ◽  
pp. 467-473 ◽  
Author(s):  
V V Osipov ◽  
V I Solomonov ◽  
V V Platonov ◽  
O A Snigireva ◽  
M G Ivanov ◽  
...  
Keyword(s):  
Graphite Target ◽  
Laser Plume

Nanoparticle-Enhanced Laser Induced Breakdown Spectroscopy Using Copper–Silver and Nickel–Carbon Nanocomposites on Aluminium

2019 ◽  
Vol 18 (03n04) ◽  
pp. 1940022
Author(s):  
V. V. Kiris ◽  
A. V. Butsen ◽  
E. A. Ershov-Pavlov ◽  
M. I. Nedelko ◽  
A. A. Nevar
Keyword(s):  
Laser Ablation ◽  
Emission Intensity ◽  
Aluminum Foil ◽  
Spectral Lines ◽  
Laser Induced Breakdown Spectroscopy ◽  
Cu Nanoparticles ◽  
Laser Plume ◽  
Carbon Nanocomposites ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

Composite Ag–Cu and Ni–C nanoparticles were synthesized by laser ablation and spark discharge in liquid, respectively. An amplification of the signal during laser induced breakdown spectroscopy was observed after deposition of the nanoparticles on the surface of an aluminum foil. The emission intensity of the laser plume increased from 2 to 20 times depending on the spectral lines used for the measurements. The intensity growth was higher for Ag–Cu nanoparticles.

Spectroscopy of a laser plume arising under radiation of a ytterbium fiber laser

2017 ◽  
Vol 122 (1) ◽  
pp. 155-161 ◽  
Author(s):  
V. V. Osipov ◽  
V. I. Solomonov ◽  
A. V. Spirina ◽  
V. V. Lisenkov ◽  
V. V. Platonov ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Laser Plume

Analysis of the NdBa2Cu3Ox thin film growth mechanism by time of flight mass spectrometry of the laser plume

1996 ◽  
Vol 11 (5) ◽  
pp. 1072-1075 ◽  
Author(s):  
M. Badaye ◽  
K. Fukushima ◽  
T. Morishita
Keyword(s):  
Thin Films ◽  
Film Growth ◽  
Time Of Flight ◽  
Oxidation Mechanism ◽  
Laser Plume ◽  
Plasma Properties ◽  
Target Density ◽  
Laser Fluences ◽  
Flight Mass Spectrometry ◽  
Deposited Film

Time of flight (TOF) spectroscopic measurements are used to diagnose the laser-generated plume of ceramic NdBa2Cu3Ox targets. We have been able to directly correlate the laser-deposited films' properties such as superconductivity, crystallinity, and orientation with plasma properties. Study of the TOF spectra shows that at laser fluences greater than 3 J/cm2 the plume become Nd-rich, and this leads to a low Tc in the deposited film. We have also shown the effect of target density on the energy of the plume species, and through energy considerations we have explained the observed change in the crystalline orientation of films from c- to a-orientation with increasing the target density. Finally, we have examined the oxidation mechanism of NdBa2Cu3Ox thin films, and have shown that highly energetic atomic oxygens have a prevailing role in oxidizing our laser-deposited thin films.

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