Journal ArticleDOI
Measurements of plasma temperature and electron density in laser-induced copper plasma by time-resolved spectroscopy of neutral atom and ion emissions
TLDR
In this paper, a 355 nm pulsed Nd:YAG laser with a pulse duration of 6 ns focussed onto a copper solid sample in air at atmospheric pressure is studied spectroscopically, and the temperature and electron density characterizing the plasma are measured by time-resolved spectroscopy of neutral atom and ion line emissions in the time window of 300-2000 ns.Abstract:
Plasma produced by a 355 nm pulsed Nd:YAG laser with a pulse duration of 6 ns focussed onto a copper solid sample in air at atmospheric pressure is studied spectroscopically. The temperature and electron density characterizing the plasma are measured by time-resolved spectroscopy of neutral atom and ion line emissions in the time window of 300-2000 ns. An echelle spectrograph coupled with a gated intensified charge coupled detector is used to record the plasma emissions. The temperature is obtained using the Boltzmann plot method and the electron density is determined using the Saha-Boltzmann equation method. Both parameters are studied as a function of delay time with respect to the onset of the laser pulse. The results are discussed. The time window where the plasma is optically thin and is also in local thermodynamic equilibrium (LTE), necessary for the laser-induced breakdown spectroscopy (LIBS) analysis of samples, is deduced from the temporal evolution of the intensity ratio of two Cu I lines. It is found to be 700-1000 ns.read more
Citations
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Journal ArticleDOI
Laser-Induced Breakdown Spectroscopy (LIBS), Part I: Review of Basic Diagnostics and Plasma–Particle Interactions: Still-Challenging Issues Within the Analytical Plasma Community
David W. Hahn,Nicoló Omenetto +1 more
TL;DR: Basic diagnostics aspects of laser-induced breakdown spectroscopy are focused on and a review of the past and recent LIBS literature pertinent to this topic is presented and previous research on non-laser-based plasma literature, and the resulting knowledge, is emphasized.
Book ChapterDOI
Chapter 12 – Laser-Induced Breakdown Spectroscopy: Advanced Analytical Technique
TL;DR: Laser induced breakdown spectroscopy (LIBS) as discussed by the authors is a technique where atoms and ions are primarily formed in their excited states as a result of interaction between a tightly focused laser beam and the material sample.
Journal ArticleDOI
Dynamics of femto- and nanosecond laser ablation plumes investigated using optical emission spectroscopy
TL;DR: In this article, the authors investigated the spatial and temporal evolution of temperature and electron density associated with femto and nanosecond laser-produced plasmas (LPP) from brass under similar laser fluence conditions.
Journal ArticleDOI
A comparative study of Cu–Ni Alloy using LIBS, LA-TOF, EDX, and XRF
TL;DR: In this paper, a laser-induced breakdown spectroscopy (LIBS) was used for the quantitative analysis of Cu-Ni alloy of known composition (75% Cu, 25% Ni) using the one line calibration free LIBS (OLCF-LIBS).
References
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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.
Book
Handbook of laser-induced breakdown spectroscopy
TL;DR: In this article, the authors present an overview of the current state of the art in the field of laser-induced breakdown spectroscopy (LIBS) and its application in various applications.
Book
Principles of Plasma Spectroscopy
TL;DR: The diagnosis of plasmas using spectroscopic observations has its origins in various older disciplines, including astronomy and discharge physics as mentioned in this paper, and the need for non-interfering diagnostics arose and spectroscopy was applied to determine the physical state and chemical abundance of the studied.
BookDOI
Laser-induced breakdown spectroscopy (LIBS) : fundamentals and applications
TL;DR: In this article, Russo and Miziolek presented a short-pulse LIBS-based spectral detector for high-resolution laser-induced breakdown spectroscopy, which can be used for the analysis of pharmaceutical materials.