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<p>Finite difference time domain (FDTD) algorithm is used to simulate the coupled equations of transient plasma corona as well as electric and magnetic field equations of transverse magnetic (TM) mode. TM mode in free space converts in plasmon on entering plasma because its governing equations depend on plasma relative permittivity. Transient plasma behavior is due to four processes. Specifically, ionization, electron-neutral attachment, and two recombination processes for electron-positive ion, and positive–negative ions. The effects of ionization rate, attachment coefficient, and recombination coefficients on electron number density and electron plasma frequency are comprehensively studied. It is found that plasma transient behavior modifies electron plasma frequency that in turn affects plasmon electric and magnetic fields. Our results are important for understanding transient plasma corona dynamics in laboratory as well as solar environment.</p>

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FDTD Simulations of Plasmon Propagation in the Transient Plasma Corona due to Ionization Attachment and Recombination Processes

  • 期刊论文

  • 发表日期：

    2025年8月9日

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  • Asif Shah,
  • Saeed Ur Rehman,
  • Irshad-Ullah

摘要

Finite difference time domain (FDTD) algorithm is used to simulate the coupled equations of transient plasma corona as well as electric and magnetic field equations of transverse magnetic (TM) mode. TM mode in free space converts in plasmon on entering plasma because its governing equations depend on plasma relative permittivity. Transient plasma behavior is due to four processes. Specifically, ionization, electron-neutral attachment, and two recombination processes for electron-positive ion, and positive–negative ions. The effects of ionization rate, attachment coefficient, and recombination coefficients on electron number density and electron plasma frequency are comprehensively studied. It is found that plasma transient behavior modifies electron plasma frequency that in turn affects plasmon electric and magnetic fields. Our results are important for understanding transient plasma corona dynamics in laboratory as well as solar environment.