Original Research

Journal of Fusion Energy

, Volume 32, Issue 2, pp 311-315

Open Access This content is freely available online to anyone, anywhere at any time.

Simulation of Stimulated Raman Scattering

  • Ahmad NaghidokhtAffiliated withDepartment of Physics, Isfahan University of Technology Email author 
  • , Akbar ParvazianAffiliated withDepartment of Physics, Isfahan University of Technology


Stimulated Raman scattering (SRS) with ordinary (O-mode) wave at phase space (x, v) is investigated. For this purpose Vlasov equation is solved with one simulation method. Evolution of distribution function for an early time and a later time is presented. Initial distribution function has Gaussian shape, that is important in plasma heating, but as the time passed, this function due to the perturbation extends over space and velocity. In this situation, the behavior of distribution function has an important role in instability rate. Then instability rate for SRS is obtained and these results are showed in some special times and special cells. Density fluctuations affect instability rate and there is no remarkable damping at early times. At later times instability rate reduces sensitively which is in accordance to electron plasma wave damping and then heating the electrons. Also with increase in frequency of the incident wave, the instability rate due to saturation decreases sensitively.


Stimulated Raman scattering Ordinary wave Instability rate Density fluctuations