Influence of Excitation Processes on the Shape of Argon and Neon Lines

• Authors: A. Bielski , R. Ciuryło , D. Lisak , R. Trawiński
• Languages of publication: EN

Abstracts

EN

Shapes of self-broadened argon lines 687.1 nm (4d_{5}-2p_{10}), 703.0 nm (3s_{5}-2p_{9}), 750.3 nm (2p_{1}-1s_{2}) as well as the neon line 748.8 nm (3d_{3}-2p_{10}) emitted from glow discharges at low pressures were analysed using a Fabry Perot interferometer. We showed that the dissociative recombination of Ar^{+}_{2} (or Ne^{+}_{2}) molecular ions which gives rise to the density of non-thermalized atoms, may be regarded as the main process responsible for the distortion of the profiles of the above lines. The distorted profiles were analysed as superposition of the Ballik profile for thermalized atoms and the modified Ballik profile for non-thermalized atoms. The Lorentzian and Gaussian widths as well as relative densities of non-thermalized and thermalized atoms were determined.

Keywords

EN

32.70.-n; 33.70.-w; 34.20.-b

Discipline

• 33.70.-w: Intensities and shapes of molecular spectral lines and bands
• 32.70.-n: Intensities and shapes of atomic spectral lines(see also 31.15.-p Calculations and mathematical techniques)
• 34.20.-b: Interatomic and intermolecular potentials and forces, potential energy surfaces for collisions(see also 82.20.Kh Potential energy surfaces for reactions; for potential energy surfaces in electronic structure calculations, see 31.50.-x)

• Journal: Acta Physica Polonica A
• Year: 2000
• Volume: 97
• Issue: 2
• Pages: 275-284

Dates

published

2000-02

received

1999-09-21

(unknown)

1999-11-30

Contributors

author

A. Bielski

• Institute of Physics, Nicholas Copernicus University, Grudziądzka 5/7, 87-100 Toruń, Poland

author

R. Ciuryło

• Institute of Physics, Nicholas Copernicus University, Grudziądzka 5/7, 87-100 Toruń, Poland

author

D. Lisak

• Institute of Physics, Nicholas Copernicus University, Grudziądzka 5/7, 87-100 Toruń, Poland

author

R. Trawiński

• Institute of Physics, Nicholas Copernicus University, Grudziądzka 5/7, 87-100 Toruń, Poland

Identifiers

DOI

10.12693/APhysPolA.97.275