Pressure-broadened atomic Li(2s-2p) line perturbed by ground neon atoms in the spectral wings and core

doi:10.1088/1674-1056/26/7/073202

中国物理B ›› 2017, Vol. 26 ›› Issue (7): 73202-073202.doi: 10.1088/1674-1056/26/7/073202

• ATOMIC AND MOLECULAR PHYSICS • 上一篇下一篇

Pressure-broadened atomic Li(2s-2p) line perturbed by ground neon atoms in the spectral wings and core

Sabri Bouchoucha, Kamel Alioua, Moncef Bouledroua

1 Physics Department, Badji Mokhtar University, B. P. 12, Annaba 23000, Algeria;
2 Laboratoire de Physique de la Matiére et du Rayonnement, Chérif Messaidia University, B. P. 1553, Souk-Ahras 41000, Algeria;
3 Laboratoire de Physique des Rayonnements, Badji Mokhtar University, B. P. 12, Annaba 23000, Algeria

收稿日期:2017-02-20 修回日期:2017-03-31 出版日期:2017-07-05 发布日期:2017-07-05
通讯作者: Sabri Bouchoucha E-mail:bsa_ur@yahoo.fr

Pressure-broadened atomic Li(2s-2p) line perturbed by ground neon atoms in the spectral wings and core

Sabri Bouchoucha¹, Kamel Alioua², Moncef Bouledroua³

1 Physics Department, Badji Mokhtar University, B. P. 12, Annaba 23000, Algeria;
2 Laboratoire de Physique de la Matiére et du Rayonnement, Chérif Messaidia University, B. P. 1553, Souk-Ahras 41000, Algeria;
3 Laboratoire de Physique des Rayonnements, Badji Mokhtar University, B. P. 12, Annaba 23000, Algeria

Received:2017-02-20 Revised:2017-03-31 Online:2017-07-05 Published:2017-07-05
Contact: Sabri Bouchoucha E-mail:bsa_ur@yahoo.fr

摘要/Abstract

摘要：

Full quantum calculations are performed to investigate the broadening profiles of the atomic lithium Li(2s-2p) resonance line induced by interactions with ground Ne(2s²2p⁶) perturbers in the spectral wings and core. The X²Σ⁺, A²Π, and B²Σ⁺ potential-energy curves of the two first low lying LiNe molecular states, as well as the corresponding transition dipole moments, are determined with ab initio methods based on the SA-CASSCF-MRCI calculations. The emission and absorption coefficients in the wavelength range 550–800 nm and the line-core width and shift are investigated theoretically for temperatures ranging from 130 K to 3000 K. Their temperature dependence is analyzed, and the obtained results are compared with the previous experimental measurements and theoretical works.

关键词: pressure broadening, emission and absorption coefficients, linewidth, lineshift

Abstract:

Key words: pressure broadening, emission and absorption coefficients, linewidth, lineshift

中图分类号: (Photoionization and excitation)

32.80.-t

31.50.Bc (Potential energy surfaces for ground electronic states) 31.50.Df (Potential energy surfaces for excited electronic states) 32.70.Jz (Line shapes, widths, and shifts)

Sabri Bouchoucha,Kamel Alioua,Moncef Bouledroua. Pressure-broadened atomic Li(2s-2p) line perturbed by ground neon atoms in the spectral wings and core[J]. 中国物理B, 2017, 26(7): 73202-073202.

Sabri Bouchoucha, Kamel Alioua, Moncef Bouledroua. Pressure-broadened atomic Li(2s-2p) line perturbed by ground neon atoms in the spectral wings and core[J]. Chin. Phys. B, 2017, 26(7): 73202-073202.

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Pressure-broadened atomic Li(2s-2p) line perturbed by ground neon atoms in the spectral wings and core

Pressure-broadened atomic Li(2s-2p) line perturbed by ground neon atoms in the spectral wings and core

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