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Asymmetry and speed-dependent effects on the 748.8 nm self-broadened neon line

  • A. Urbanowicz
  • A. Bielski
  • D. Lisak
  • R. Ciuryło
  • R. S. Trawiński
Atomic Physics

Abstract.

Using an interferometric method, detailed analysis of the self-broadened 748.8 nm Ne line shapes emitted from the glow discharge of neon was performed, where departures from the ordinary Voigt profile were observed. These departures are shown to be consistent with fits of the speed-dependent asymmetric Voigt profile to experimental profiles. It was shown that neglecting the correlation between Doppler and collisional broadening may cause errors in determined line shape parameter values. Coefficients of the pressure broadening, shift and collision-time asymmetry are determined and compared with those calculated in the adiabatic approximation for the van der Waals and Lennard-Jones potentials.

Keywords

Neon Line Shape Glow Discharge Doppler Width Spectral Line Shape 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • A. Urbanowicz
    • 1
  • A. Bielski
    • 1
  • D. Lisak
    • 1
  • R. Ciuryło
    • 1
  • R. S. Trawiński
    • 1
  1. 1.Instytut Fizyki, Uniwersytet Mikołaja Kopernika, Grudzia̧dzka 5/7ToruńPoland

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