One Dimensonal Plasma Simulation using FDTD Method.

Plasma Medium play 2 different role according to the applied frequency.If the frequency is relatively low frequency,it looks like a metal,and higher frequency,it become transparent just like a dielectric medium.The low or high frequencies,i mean below or above the Plasma frequency.
I just demonstrate in this simulation how the Plasma medium behave when a Gaussian signal is impinge on it,here i use this signal above Plasma frequency.Using this simulation i will take the Drude Model for Plasma Permittivity(For unmagnetized Plasma). After taking this model we simply expand this using partial fraction.After that i will take the z-transform of this expansion.Using z-transform is easy and reliable as a mathematical point of view.
After getting this dispersive model(permittivity) of plasma i use FDTD method for solving the electric as well as magnetic response of the Plasma.The Leaf frog technique simultaneously increment electric field as well as magnetic field and after that we plot the electric field response of different time span.