American Journal of Physics and Applications

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Atomic Data and Laser Transitions in as - Like Gallium

Received: 20 January 2016    Accepted: 01 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 We also report on some unpublished values for energy levels, oscillator strengths and transition probabilities for As like gallium.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.

DOI 10.11648/j.ajpa.20160401.13
Published in American Journal of Physics and Applications (Volume 4, Issue 1, January 2016)
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), 2024. Published by Science Publishing Group

Keywords

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

References
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Author Information
  • Physics Department, Faculty of Science, Cairo University, Cairo, Egypt

  • Physics Department, Faculty of Science, Benha University, Benha, Egypt

  • Physics Department, Faculty of Science, Benha University, Benha, Egypt

  • 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://download.sciencepg.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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