Journal ArticleDOI
Plume splitting and sharpening in laser-produced aluminium plasma
TLDR
In this article, a triple structure of the plume was observed in laser-produced aluminium plume using 2 ns gated fast photography as well as space and time resolved optical emission spectroscopy.Abstract:
Plume splitting and sharpening were observed in laser-produced aluminium plasma created using 532 nm, 8 ns pulses from a frequency doubled Nd : YAG laser. Measurements were made using 2 ns gated fast photography as well as space and time resolved optical emission spectroscopy. The motion of the leading edge of the plume was studied with several background air pressures and the expansion of the plume front was compared with various expansion models. Combining imaging together with time resolved emission diagnostics, a triple structure of the plume was observed.read more
Citations
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Journal Article
Pulsed laser deposition of thin films
TL;DR: In this paper, the result of the PtSi nanometer thin film based on silicon prepared by the pulsed laser deposition was described and the physical principle, unique characteristics and the proceeding of the study were introduced briefly.
Journal ArticleDOI
Emission features and expansion dynamics of nanosecond laser ablation plumes at different ambient pressures
TL;DR: In this article, the influence of ambient pressure on the spectral emission features and expansion dynamics of a plasma plume generated on a metal target has been investigated by irradiating Cu targets using 6'ns, 1064'nm pulses from a Q-switched Nd:YAG laser.
Journal ArticleDOI
Spectroscopic characterization of laser-induced tin plasma
TL;DR: In this paper, an initial temperature of 3.2 eV and density of 7.7×1017 cm−3 were measured using Boltzmann diagram method using singly ionized Sn lines, while density measurements were made using the Stark broadening method.
Journal ArticleDOI
Ambient gas effects on the dynamics of laser-produced tin plume expansion
TL;DR: In this article, the authors employed a partial ambient argon pressure for decelerating various species in the tin plume and analyzed the kinetic energy distributions of tin species using time and space resolved optical emission spectroscopy and a Faraday cup, respectively.
Journal ArticleDOI
Thermalization of a UV laser ablation plume in a background gas: From a directed to a diffusionlike flow.
TL;DR: In this article, the authors combined diagnostic measurements of deposition rates and ion time-of-flight signals to study the expansion of a laser ablation plume into a background gas, showing that with increasing gas pressure the angular distribution of the collected ablated atoms becomes broader, while the total collected yield decreases.
References
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Journal ArticleDOI
C 60 : Buckminsterfullerene
Harold W. Kroto,Harold W. Kroto,James R. Heath,Sean C. O'Brien,Robert F. Curl,Richard E. Smalley +5 more
TL;DR: In this article, the authors proposed a truncated icosahedron, a polygon with 60 vertices and 32 faces, 12 of which are pentagonal and 20 hexagonal.
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.
Journal Article
Pulsed laser deposition of thin films
TL;DR: In this paper, the result of the PtSi nanometer thin film based on silicon prepared by the pulsed laser deposition was described and the physical principle, unique characteristics and the proceeding of the study were introduced briefly.
Journal ArticleDOI
Characterization of laser-ablation plasmas
TL;DR: In this paper, the authors discuss the generation of high-density and high-temperature plasmas by focusing high peak power laser radiation onto a solid target and discuss the fundamental theoretical and numerical approaches developed to analyse laser-target interaction, plasma formation, as well as its expansion.
Journal ArticleDOI
On the dual role of the Knudsen layer and unsteady, adiabatic expansion in pulse sputtering phenomena
TL;DR: In this paper, it was shown that the resulting gas-phase interactions cause the Knudsen layer to evolve into an unsteady, adiabatic expansion which is formally like a gun which fires a finite charge into an infinite, one-dimensional barrel.