@inproceedings{d2d1a4e372fb4572af48da49e1c9bc57,
title = "Evidence of plasma polarization shift of Ti He-alpha resonance line in high density laser produced plasmas",
abstract = "A spectroscopic study of the He-alpha (1s(2) S-1(0) - 1s2p P-1(1)) line emission (4749.73 eV) from high density plasma was conducted. The plasma was produced by irradiating Ti targets with intense (I approximate to 1x10(19) W/cm(2)), 400nm wavelength high contrast, short (45fs) p-polarized laser pulses at an angle of 45 degrees. A line shift up to 3.4 +/- 1.0 eV (1.9 +/- 0.55 m angstrom) was observed in the He-alpha line. The line width of the resonance line at FWHM was measured to be 12.1 +/- 0.6 eV (6.7 +/- 0.35 m angstrom). For comparison, we looked into the emission of the same spectral line from plasma produced by irradiating the same target with laser pulses of reduced intensities (approximate to 10(17) W/cm(2)): we observed a spectral shift of only 1.8 +/- 1.0 eV (0.9 +/- 0.55m angstrom) and the line-width measures up to 5.8 +/- 0.25 eV (2.7 +/- 0.35 m angstrom). These data provide evidence of plasma polarization shift of the Ti He-alpha line.",
keywords = "ATOMIC-STRUCTURE, HYDROGEN LINES, ION LINES, HOT, ALUMINUM, EMISSION, PULSES, HELIUM, TRANSITIONS, PROFILES",
author = "Khattak, {F. Y.} and {du Sert}, {O. A. M. B. Percie} and Rosmej, {F. B.} and D. Riley",
year = "2012",
doi = "10.1088/1742-6596/397/1/012020",
language = "English",
series = "Journal of Physics Conference Series",
publisher = "IOP Publishing Ltd",
booktitle = "XXI INTERNATIONAL CONFERENCE ON SPECTRAL LINE SHAPES (ICSLS 2012)",
address = "United Kingdom",
note = "21st International Conference on Spectral Line Shapes (ICSLS) ; Conference date: 03-06-2012 Through 09-06-2012",
}