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Li(2p $\leftarrow$ 2s) + Na(3s) pressure broadening in the far-wing and line-core profiles |
| F Talbi1,2, N Lamoudi1,3, L Reggami1, M T Bouazza1,4,†, K Alioua5, and M Bouledroua2 |
1 Physics Department, Badji Mokhtar University, B. P. 12, Annaba 23000, Algeria;
2 Laboratoire de Physique des Rayonnements, Badji Mokhtar University, B. P. 12, Annaba 23000, Algeria;
3 Laboratoire d'Etude des Surfaces et Interfaces de la Matière Solide(LESIMS), Badji Mokhtar University, B. P. 12 Annaba 23000, Algeria;
4 Laboratoire LAMA, Laboratoire des Matériaux Avancés(LAMA), Badji Mokhtar University, B. P. 12 Annaba 23000, Algeria;
5 Laboratoire de Physique de la Matière et du Rayonnement LPMR, UniversitéChérif Messaidia, B. P. 1553, Souk-Ahras 41000, Algeria |
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Abstract This work reports pressure-broadening line-wing and line-core of the lithium Li (2p $\leftarrow$ 2s) resonance line perturbed by ground sodium Na (3s) atoms. In far-wing regions, the calculations are performed quantum-mechanically and are intended to examine the photoabsorption coefficients at diverse temperatures. The results show the existence of three satellites, in the blue wing near the wavelengths 470 nm and in the red wing around 862 nm and 1070 nm. For the line-core region, by adopting the simplified Baranger model, the line-width and line-shift rates are determined, and their variation law with temperature is examined. No published data were found to compare these results with.
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Received: 13 September 2021
Revised: 26 November 2021
Accepted manuscript online: 16 December 2021
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PACS:
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34.20.-b
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(Interatomic and intermolecular potentials and forces, potential energy surfaces for collisions)
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52.25.Os
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(Emission, absorption, and scattering of electromagnetic radiation ?)
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31.50.Df
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(Potential energy surfaces for excited electronic states)
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95.30.Ky
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(Atomic and molecular data, spectra, and spectralparameters (opacities, rotation constants, line identification, oscillator strengths, gf values, transition probabilities, etc.))
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| Fund: This work has been realized within the framework of the PNR project 8/423/4388. The authors acknowledge support from the Algerian Ministry of Higher Education and ANDRU. |
Corresponding Authors:
M T Bouazza
E-mail: taharbouazza@yahoo.com
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Cite this article:
F Talbi, N Lamoudi, L Reggami, M T Bouazza, K Alioua, and M Bouledroua Li(2p $\leftarrow$ 2s) + Na(3s) pressure broadening in the far-wing and line-core profiles 2022 Chin. Phys. B 31 073401
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