Atomic Data and Laser Transitions in as - Like Gallium

Amal Ibrahim Refaie; Mohammed Nour El-Din; Lamia Mohammed Ahmed; Sami Allam

doi:doi:10.11648/j.ajpa.20160401.13

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Atomic Data and Laser Transitions in as - Like Gallium

Amal Ibrahim Refaie, Mohammed Nour El-Din, Lamia Mohammed Ahmed, Sami Allam

Published in American Journal of Physics and Applications (Volume 4, Issue 1)

Received: 20 January 2016 Accepted: 1 February 2016 Published: 23 February 2016

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Abstract

Fine structure calculations of the energy levels, the wavelengths, the oscillator strengths, log gf and the transition probabilities for transitions among the terms belonging to 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰4s²ns, n=5-6, 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰4s²np, n=4-6, 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰4s²nd, n=4-6 and1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰4s²nf, n=4-6 configurations of As (III) have been calculated using configurations interaction Cowan atomic structure code. Our calculated values for the above mentioned quantities have been compared with the corresponding experimental data and other theoretical calculations where a satisfactory agreement is found. We also report on some unpublished values for energy levels, oscillator strengths and transition probabilities for As like gallium. These atomic data are taken as the basis for studying laser transitions between levels of As(III). Excitation rate coefficients of As like gallium are calculated using the analytical formulas of Vriens and Smeets (1980) and with considering using the collisional radiative model code CRMO of Allam (2006). A simple modification to these formulas has been included by introducing effective quantum numbers. The energy values, the radiative data and rate coefficients are then used to calculate the population densities by solving the coupled rate equations. Among these calculations positive gain coefficients are found at three selected values of electron temperature, namely 7.087 eV, 14.147 eV and 21.261 eV which are displayed as a function of the electron impact density.

Published in	American Journal of Physics and Applications (Volume 4, Issue 1)
DOI	10.11648/j.ajpa.20160401.13
Page(s)	12-19
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2016. Published by Science Publishing Group

Keywords

Energy Levels, the Average Center of Mass Energy (E_av), the Spin-Orbit Interaction (), Nist, the Oscillator Strength (ƒ), Rate Coefficients, Level Population, Maximum Gain Coefficient(α_max)

References

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APA Style

Amal Ibrahim Refaie, Mohammed Nour El-Din, Lamia Mohammed Ahmed, Sami Allam. (2016). Atomic Data and Laser Transitions in as - Like Gallium. American Journal of Physics and Applications, 4(1), 12-19. https://doi.org/10.11648/j.ajpa.20160401.13

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ACS Style

Amal Ibrahim Refaie; Mohammed Nour El-Din; Lamia Mohammed Ahmed; Sami Allam. Atomic Data and Laser Transitions in as - Like Gallium. Am. J. Phys. Appl. 2016, 4(1), 12-19. doi: 10.11648/j.ajpa.20160401.13

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AMA Style

Amal Ibrahim Refaie, Mohammed Nour El-Din, Lamia Mohammed Ahmed, Sami Allam. Atomic Data and Laser Transitions in as - Like Gallium. Am J Phys Appl. 2016;4(1):12-19. doi: 10.11648/j.ajpa.20160401.13

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@article{10.11648/j.ajpa.20160401.13,
  author = {Amal Ibrahim Refaie and Mohammed Nour El-Din and Lamia Mohammed Ahmed and Sami Allam},
  title = {Atomic Data and Laser Transitions in as - Like Gallium},
  journal = {American Journal of Physics and Applications},
  volume = {4},
  number = {1},
  pages = {12-19},
  doi = {10.11648/j.ajpa.20160401.13},
  url = {https://doi.org/10.11648/j.ajpa.20160401.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajpa.20160401.13},
  abstract = {Fine structure calculations of the energy levels, the wavelengths, the oscillator strengths, log gf and the transition probabilities for transitions among the terms belonging to 1s2 2s2 2p6 3s2 3p6 3d104s2ns, n=5-6, 1s2 2s2 2p6 3s2 3p6 3d104s2np, n=4-6, 1s2 2s2 2p6 3s2 3p6 3d104s2nd, n=4-6 and1s2 2s2 2p6 3s2 3p6 3d104s2nf, n=4-6 configurations of As (III) have been calculated using configurations interaction Cowan atomic structure code. Our calculated values for the above mentioned quantities have been compared with the corresponding experimental data and other theoretical calculations where a satisfactory agreement is found. We also report on some unpublished values for energy levels, oscillator strengths and transition probabilities for As like gallium. These atomic data are taken as the basis for studying laser transitions between levels of As(III). Excitation rate coefficients of As like gallium are calculated using the analytical formulas of Vriens and Smeets (1980) and with considering using the collisional radiative model code CRMO of Allam (2006). A simple modification to these formulas has been included by introducing effective quantum numbers. The energy values, the radiative data and rate coefficients are then used to calculate the population densities by solving the coupled rate equations. Among these calculations positive gain coefficients are found at three selected values of electron temperature, namely 7.087 eV, 14.147 eV and 21.261 eV which are displayed as a function of the electron impact density.},
 year = {2016}
}

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TY  - JOUR
T1  - Atomic Data and Laser Transitions in as - Like Gallium
AU  - Amal Ibrahim Refaie
AU  - Mohammed Nour El-Din
AU  - Lamia Mohammed Ahmed
AU  - Sami Allam
Y1  - 2016/02/23
PY  - 2016
N1  - https://doi.org/10.11648/j.ajpa.20160401.13
DO  - 10.11648/j.ajpa.20160401.13
T2  - American Journal of Physics and Applications
JF  - American Journal of Physics and Applications
JO  - American Journal of Physics and Applications
SP  - 12
EP  - 19
PB  - Science Publishing Group
SN  - 2330-4308
UR  - https://doi.org/10.11648/j.ajpa.20160401.13
AB  - Fine structure calculations of the energy levels, the wavelengths, the oscillator strengths, log gf and the transition probabilities for transitions among the terms belonging to 1s2 2s2 2p6 3s2 3p6 3d104s2ns, n=5-6, 1s2 2s2 2p6 3s2 3p6 3d104s2np, n=4-6, 1s2 2s2 2p6 3s2 3p6 3d104s2nd, n=4-6 and1s2 2s2 2p6 3s2 3p6 3d104s2nf, n=4-6 configurations of As (III) have been calculated using configurations interaction Cowan atomic structure code. Our calculated values for the above mentioned quantities have been compared with the corresponding experimental data and other theoretical calculations where a satisfactory agreement is found. We also report on some unpublished values for energy levels, oscillator strengths and transition probabilities for As like gallium. These atomic data are taken as the basis for studying laser transitions between levels of As(III). Excitation rate coefficients of As like gallium are calculated using the analytical formulas of Vriens and Smeets (1980) and with considering using the collisional radiative model code CRMO of Allam (2006). A simple modification to these formulas has been included by introducing effective quantum numbers. The energy values, the radiative data and rate coefficients are then used to calculate the population densities by solving the coupled rate equations. Among these calculations positive gain coefficients are found at three selected values of electron temperature, namely 7.087 eV, 14.147 eV and 21.261 eV which are displayed as a function of the electron impact density.
VL  - 4
IS  - 1
ER  -

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Author Information

Amal Ibrahim Refaie

Physics Department, Faculty of Science, Cairo University, Cairo, Egypt
Mohammed Nour El-Din

Physics Department, Faculty of Science, Benha University, Benha, Egypt
Lamia Mohammed Ahmed

Physics Department, Faculty of Science, Benha University, Benha, Egypt
Sami Allam

Physics Department, Faculty of Science, Cairo University, Cairo, Egypt

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APA Style

Amal Ibrahim Refaie, Mohammed Nour El-Din, Lamia Mohammed Ahmed, Sami Allam. (2016). Atomic Data and Laser Transitions in as - Like Gallium. American Journal of Physics and Applications, 4(1), 12-19. https://doi.org/10.11648/j.ajpa.20160401.13

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ACS Style

Amal Ibrahim Refaie; Mohammed Nour El-Din; Lamia Mohammed Ahmed; Sami Allam. Atomic Data and Laser Transitions in as - Like Gallium. Am. J. Phys. Appl. 2016, 4(1), 12-19. doi: 10.11648/j.ajpa.20160401.13

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AMA Style

Amal Ibrahim Refaie, Mohammed Nour El-Din, Lamia Mohammed Ahmed, Sami Allam. Atomic Data and Laser Transitions in as - Like Gallium. Am J Phys Appl. 2016;4(1):12-19. doi: 10.11648/j.ajpa.20160401.13

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@article{10.11648/j.ajpa.20160401.13,
  author = {Amal Ibrahim Refaie and Mohammed Nour El-Din and Lamia Mohammed Ahmed and Sami Allam},
  title = {Atomic Data and Laser Transitions in as - Like Gallium},
  journal = {American Journal of Physics and Applications},
  volume = {4},
  number = {1},
  pages = {12-19},
  doi = {10.11648/j.ajpa.20160401.13},
  url = {https://doi.org/10.11648/j.ajpa.20160401.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajpa.20160401.13},
  abstract = {Fine structure calculations of the energy levels, the wavelengths, the oscillator strengths, log gf and the transition probabilities for transitions among the terms belonging to 1s2 2s2 2p6 3s2 3p6 3d104s2ns, n=5-6, 1s2 2s2 2p6 3s2 3p6 3d104s2np, n=4-6, 1s2 2s2 2p6 3s2 3p6 3d104s2nd, n=4-6 and1s2 2s2 2p6 3s2 3p6 3d104s2nf, n=4-6 configurations of As (III) have been calculated using configurations interaction Cowan atomic structure code. Our calculated values for the above mentioned quantities have been compared with the corresponding experimental data and other theoretical calculations where a satisfactory agreement is found. We also report on some unpublished values for energy levels, oscillator strengths and transition probabilities for As like gallium. These atomic data are taken as the basis for studying laser transitions between levels of As(III). Excitation rate coefficients of As like gallium are calculated using the analytical formulas of Vriens and Smeets (1980) and with considering using the collisional radiative model code CRMO of Allam (2006). A simple modification to these formulas has been included by introducing effective quantum numbers. The energy values, the radiative data and rate coefficients are then used to calculate the population densities by solving the coupled rate equations. Among these calculations positive gain coefficients are found at three selected values of electron temperature, namely 7.087 eV, 14.147 eV and 21.261 eV which are displayed as a function of the electron impact density.},
 year = {2016}
}

Copy | Download

TY  - JOUR
T1  - Atomic Data and Laser Transitions in as - Like Gallium
AU  - Amal Ibrahim Refaie
AU  - Mohammed Nour El-Din
AU  - Lamia Mohammed Ahmed
AU  - Sami Allam
Y1  - 2016/02/23
PY  - 2016
N1  - https://doi.org/10.11648/j.ajpa.20160401.13
DO  - 10.11648/j.ajpa.20160401.13
T2  - American Journal of Physics and Applications
JF  - American Journal of Physics and Applications
JO  - American Journal of Physics and Applications
SP  - 12
EP  - 19
PB  - Science Publishing Group
SN  - 2330-4308
UR  - https://doi.org/10.11648/j.ajpa.20160401.13
AB  - Fine structure calculations of the energy levels, the wavelengths, the oscillator strengths, log gf and the transition probabilities for transitions among the terms belonging to 1s2 2s2 2p6 3s2 3p6 3d104s2ns, n=5-6, 1s2 2s2 2p6 3s2 3p6 3d104s2np, n=4-6, 1s2 2s2 2p6 3s2 3p6 3d104s2nd, n=4-6 and1s2 2s2 2p6 3s2 3p6 3d104s2nf, n=4-6 configurations of As (III) have been calculated using configurations interaction Cowan atomic structure code. Our calculated values for the above mentioned quantities have been compared with the corresponding experimental data and other theoretical calculations where a satisfactory agreement is found. We also report on some unpublished values for energy levels, oscillator strengths and transition probabilities for As like gallium. These atomic data are taken as the basis for studying laser transitions between levels of As(III). Excitation rate coefficients of As like gallium are calculated using the analytical formulas of Vriens and Smeets (1980) and with considering using the collisional radiative model code CRMO of Allam (2006). A simple modification to these formulas has been included by introducing effective quantum numbers. The energy values, the radiative data and rate coefficients are then used to calculate the population densities by solving the coupled rate equations. Among these calculations positive gain coefficients are found at three selected values of electron temperature, namely 7.087 eV, 14.147 eV and 21.261 eV which are displayed as a function of the electron impact density.
VL  - 4
IS  - 1
ER  -

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