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Spectral evolution of nano-second laser interaction with Ti target in nitrogen ambient gas

Applied Physics B • 2014
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Publication Information
Authors H. Hegazy, H. A. Abd El-Ghany, S. H. Allam, Th. M. El-Sherbini
Keywords laser induced plasma, Titanium plasma
Journal Applied Physics B
Publisher Springer
Volume 117
Issue 1
Pages 343-352
publication.type International
Paper Link Open Link
Supplementary Materials Not Available
Abstract
The present work aimed to study the variation
in the plasma parameters (temperature and density) of the
Ti plasma generated by 1,064 and 532 nm lasers at different
ambient N2 pressures for different delay times. The
characterization of the plasma-assisted pulsed laser ablation
of the titanium target is discussed. The emission
spectra of the titanium plasma produced in the present
study have been carefully investigated over the whole UV–
NIR (200–1,000 nm) spectral range. Boltzmann plots of
suitable spectral lines have been employed to derive the
excitation temperature, and the electron density is derived
from the Stark widths of the Ti II spectral line at
350.49 nm.