Influence of ambient gas on the temperature and density of laser produced carbon plasma
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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
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Journal ArticleDOI
Influence of Planar Mirror Confinement and Temperature Control upon the Elemental Analysis of Soil by Laser-Induced Breakdown Spectroscopy
TL;DR: In this article , an enhancement combining planar mirror constraint and temperature control is reported to improve the signal-to-noise ratio of laser-induced breakdown spectroscopy, and the spectral intensities and spectral ratios of samples with and without the enhancements were compared.
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Investigation of number density, temperature and kinetic energy of nanosecond laser induced Zr plasma species for self-generated electric and magnetic fields in axial expansion of plume
TL;DR: In this paper , the number density, temperature, and kinetic energy of laser-induced Zr plasma species have been evaluated experimentally under ultra-high vacuum conditions as a function of 1 to 4 cm axial distances of the plume at laser irradiances ranging from 4.5 to 11.7.
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A comparative study on the characteristics of nanosecond laser ablation zinc and acrylonitrile butadiene styrene targets
TL;DR: In this article , the influence of laser energy and pressure on propulsion performance of zinc and acrylonitrile butadiene styrene (ABS) is investigated by impulse measurement, fast exposure images, spectral diagnostics and target ablation.
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Diffusion dynamics and characterization of attogram masses in optically trapped single nanoparticles using laser-induced plasma imaging
TL;DR: In this paper , a wavelength-selected plasma imaging analysis system is presented and used to track photons emitted from single-trapped nanoparticles in air at atmospheric pressure, where isolated nanoentities were atomized and excited into plasma state using single nanosecond laser pulses.
Journal ArticleDOI
Laser Ablation of Copper Alloy under Varying Environmental Conditions to Achieve Purpose-Built Surface Structures
Asadullah Dawood,Naveed Ahmed,Shazia Bashir,Asma Hayat,Syed Muhammad Abouzar Sarfraz,Ambreen Ayub +5 more
TL;DR: In this article , a copper-zinc alloy (95% Cu and 5% Zn) has been laser ablated under different gaseous and magnetic environments to realize a variety of micro-structuring at the ablation surfaces.
References
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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,
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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.
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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.
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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.