Fig. 3: Simulation results of measurement data.
Theoretical simulation of the TKE response in the time domain for the electronic, Debye relaxation, hydrogen bond stretching vibration and hydrogen bond bending vibration contributions under different pump electric fields with cut-off frequencies of a 18THz, b 9THz and c 6THz. The corresponding inset shows a comparison between the sum of all the contributions and the measured data. d Theoretical frequency-domain Kerr coefficient Keff under hydrogen bond bending (yellow line) and stretching (purple line) modes. The sum of these two theoretical Kerr coefficients (red line) closely matches the data extracted from the experimental results with a cut-off frequency of 18THz (blue line). The inset shows the measured Kerr coefficient Keff extracted from the birefringent signals under different electric fields with cut-off frequencies of 18, 9 and 6THz
