Influence of ambient gas on the temperature and density of laser produced carbon plasma
Reads0
Chats0
TLDR
In this article, the effect of ambient gas on the dynamics of the plasma generated by laser ablation of a carbon target using 1.06 μm radiation from a Q-switched Nd:YAG laser has been investigated using a spectroscopic technique.Abstract:
The effect of ambient gas on the dynamics of the plasma generated by laser ablation of a carbon target using 1.06 μm radiation from a Q-switched Nd:YAG laser has been investigated using a spectroscopic technique. The emission characteristics of the carbon plasma produced in argon, helium and air atmospheres are found to depend strongly on the nature and pressure of the surrounding gas. It has been observed that hotter and denser plasmas are formed in an argon atmosphere rather than in helium or air as an ambient.read more
Citations
More filters
Journal ArticleDOI
Tuning oxygen vacancies on LaFeO3 perovskite as efficient electrocatalysts for oxygen evolution reaction
TL;DR: In this article, the oxygen vacancies in lanthanum-iron oxide perovskite were produced by plasma and the vacancy concentration was facilely tuned by plasma forming-gas following the order of Ar > O2 > H2/Ar.
Journal ArticleDOI
Liquid assisted ablation of zirconium for the growth of LIPSS at varying pulse durations and pulse energies by femtosecond laser irradiation
TL;DR: In this paper, the authors explore the optimized conditions for the growth of laser induced periodic surface structures (LIPSS) by varying pulse durations and pulse energies during ultrashort pulsed laser ablation of zirconium (Zr).
Journal ArticleDOI
Effect of nature and pressure of ambient environments on the surface morphology, plasma parameters, hardness, and corrosion resistance of laser-irradiated Mg-alloy
Asadullah Dawood,Shazia Bashir,Mahreen Akram,Asma Hayat,Sajjad Ahmed,Muhammad Hassan Iqbal,Ali Hassan Kazmi +6 more
TL;DR: In this paper, the influence of nature and pressure of ambient environment on the surface modification, plasma parameters, hardness, and corrosion resistance of Mg-alloy has been investigated.
Journal ArticleDOI
Hydrogen isotopic analysis of nuclear reactor materials using ultrafast laser-induced breakdown spectroscopy.
TL;DR: In this paper, the effects of varying plasma generation conditions (nanosecond versus femtosecond laser ablation) and ambient environments (argon versus helium gas) on spectral features generated from Zircaloy-4 targets with varying hydrogen isotopic compositions were studied.
Journal ArticleDOI
Influence of sample temperature on the expansion dynamics of laser-induced germanium plasma
TL;DR: In this article, the authors investigated the influence of sample temperature on the expansion dynamics and the optical emission spectroscopy of laser-induced plasma, and Ge was selected as the test sample.
References
More filters
Book
CRC Handbook of Chemistry and Physics
TL;DR: CRC handbook of chemistry and physics, CRC Handbook of Chemistry and Physics, CRC handbook as discussed by the authors, CRC Handbook for Chemistry and Physiology, CRC Handbook for Physics,
Book ChapterDOI
Pulsed laser deposition of thin films
TL;DR: Pulsed laser deposition of high-temperature superconducting thin films for active and passive device applications is discussed in this article, with a focus on the commercial scale-up of Pulsed Laser Deposition.
Reference BookDOI
Laser-induced plasmas and applications
TL;DR: In this article, the authors discuss optical science, engineering, and technology topics covered include the laser and its many commercial and industrial applications, the new optical materials, gradient index optics, electro-and acousto-optics, fiber optics and communications, optical computing and pattern recognition, optical data reading, recording and storage, biomedical instrumentation, industrial robotics, integrated optics, infrared and ultraviolet systems
Journal ArticleDOI
Synthesis of Novel Thin-Film Materials by Pulsed Laser Deposition
Douglas H. Lowndes,David B. Geohegan,Alexander A. Puretzky,David P. Norton,Christopher M. Rouleau +4 more
TL;DR: Cluster-assembled nanocrystalline and composite films offer opportunities to control and produce new combinations of properties with PLD, and artificially layered materials and metastable phases have been created and their properties varied by control of the layer thicknesses.
Journal ArticleDOI
Self-assembly of the fullerenes
TL;DR: In this article, a central mystery of the fullerene story is solved: how carbon can be made spontaneously in high yield simply by condensing carbon vapor in a special way.