(a) Electric field profile for minimum values of the plasma system parameters (see Table 1) and (b) the FFT power spectra of the electric field. (c) Electric field profile for maximum values of the plasma system parameters (see Table 1). (d) Corresponding FFT power spectra of the electric field. The x-axis signifies the log₁₀ ν, where v is the frequency in Hz, and the y-axis represents the power of the electric field in units of dB(mV/m/Hz).