Dipersive propagation of ultra wideband pulses through triply distilled water at PHz frequencies

We propose a propagation analysis through dispersive media in the frequency domain suitable for any input waveform and material of interest. The cases of rectangular and Gaussian pulses are analysed with this frequency based technique for the Rocard-Powles-Lorentz dielectric model of triply-distilled water at 10PHz. The evolution of the Brillouin and Sommefield precursors is shown, as well as the frequency behaviour for both waveforms. We also analyse the frequency spectrum corresponding to the Sommerfield component.