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Relativistic Gaussian laser beam self-focusing in collisional quantum plasmas

Zare, S ; Sharif University of Technology | 2015

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  1. Type of Document: Article
  2. DOI: 10.1017/S0263034615000063
  3. Publisher: Cambridge University Press , 2015
  4. Abstract:
  5. Propagation of Gaussian X-ray laser beam is presented in collisional quantum plasma and the beam width oscillation is studied along the propagation direction. It is noticed that due to energy absorption in collisional plasma, the laser energy drops to an amount less than the critical value of the self-focusing effect and consequently, the laser beam defocuses. It is found that the oscillation amplitude of the laser spot size enhances while passing through collisional plasma. For the greater values of collision frequency, the beam width oscillates with higher amplitude and defocuses in a shallower plasma depth. Also, it is realized that in a dense plasma environment, the laser self-focusing occurs earlier with the higher oscillation amplitude, smaller laser spot size and more oscillations
  6. Keywords:
  7. Beam width parameter ; Dielectric constant ; Quantum plasma ; X-ray laser ; Electromagnetic wave propagation in plasma ; Focusing ; Gaussian beams ; Laser beams ; Permittivity ; X ray lasers ; Beam widths ; Dense plasma environments ; Gaussian laser beam ; Oscillation amplitude ; Propagation direction ; Quantum plasmas ; Self focusing effect ; Self-focusing ; Collisional plasmas
  8. Source: Laser and Particle Beams ; Volume 33, Issue 3 , 2015 , Pages 397-403 ; 02630346 (ISSN)
  9. URL: https://www.cambridge.org/core/journals/laser-and-particle-beams/article/relativistic-gaussian-laser-beam-self-focusing-in-collisional-quantum-plasmas/9B20FC8405DEF4B660614880CEE64774