Abstract
A time-integrated space-resolved emission spectroscopic technique was developed in the VUV spectral range for the measurement of the electron number density and excitation temperature of laser-produced steel plasmas. 400 mJ pulses of Nd:YAG laser (7 ns duration) emitted at the fundamental wavelength of 1.06 μm are used to create the steel plasmas under moderate vacuum conditions (∼ 0.2 mbar). The electron number density was estimated from measurements of the FWHM of the Stark-broadened C II 68.73nm carbon spectral line. The excitation temperature was evaluated by the Boltzmann’s plot method for five selected Fe III iron spectral lines in the wavelength range 89-93nm.
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References
M.B.L. Blankenburg, Laser Micro-Analysis (Wiley, New York, 1989).
M.A. Khater et al., J. Phys. D: Appl. Phys. 33, 2252 (2000).
E. Tognoni et al., Spectrochim. Acta B 65, 1 (2010).
D.B. Chrisey, G.K. Hubler (Editors), Pulsed Laser Deposition of Thin Films (Wiley, New York, 1994).
D.H. O’Neil et al., Mater. Chem. Phys. 123, 152 (2010).
H. Long et al., Thin Solid Films 517, 745 (2008).
V.M. Allmen, A. Blatter, Laser Beam Interactions with Materials: Physical Principles and Applications (Springer, Berlin, 1995).
P. Jafarkhani et al., Appl. Surf. Sci. 256, 3817 (2010).
D.S. Milovanović et al., J. All. Comp. 501, 89 (2010).
H.R. Griem, Spectral Line Broadening by Plasmas (Academic Press, New York, 1974).
H.R. Griem, Principles of Plasma Spectroscopy (Cambridge University Press, Cambridge, 1997).
C. Aragón, J.A. Aguilera, Spectrochim. Acta B 63, 893 (2008).
J. Hermann et al., J. Appl. Phys. 77, 2928 (1995).
J.A. Aguilera, C. Aragon, Spectrochim. Acta B 59, 1861 (2004).
W.F. Luo et al., Nucl. Instrum. Methods A 637, 158 (2011).
J. Bengoechea, E.T. Kennedy, J. Anal. At. Spectrom. 19, 468 (2004).
J. Jasik et al., Spectrochim. Acta B 64, 1128 (2009).
M.A. Khater et al., Appl. Spectrosc. 55, 1430 (2001).
M.A. Khater et al., Appl. Spectrosc. 56, 970 (2002).
M.A. Khater, J. Korean Phys. Soc. 58, 1581 (2011) DOI:10.3938/jkps.58.1581.
R.A. Multari et al., Appl. Spectrosc. 50, 1483 (1996).
I.B. Gornushkin et al., Spectrochim. Acta B 54, 1207 (1999).
G. Bekefi, Spectroscopic Diagnostics of Laser Plasmas, in Principles of Laser Plasmas (Wiley, New York, 1976).
R.K. Singh, J. Narayan, Phys. Rev. B 41, 8843 (1990).
H.R. Griem, Phys. Rev. 131, 1170 (1963).
G. Cristoforetti et al., Spectrochim. Acta B 65, 86 (2010).
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Khater, M.A., Kennedy, E.T. Spectroscopic evaluation of electron density and temperature of a laser plasma source in the vacuum ultraviolet. Eur. Phys. J. Plus 127, 61 (2012). https://doi.org/10.1140/epjp/i2012-12061-7
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DOI: https://doi.org/10.1140/epjp/i2012-12061-7