Fig. 5
From: Second-order spectral lineshapes from charged interfaces

Air/water interface. Intensity and imaginary SFG spectra for three oscillators on a surface simulated for ω 1 = 3200 cm−1, γ1 = 0°, ω 2 = 3400 cm−1, γ2 = 0°, A 1 M 1 = 2, A 2 M 2 = 10, Γ 1 = Γ 2 = 120 cm−1, ω 3 = 3700 cm−1, γ3 = 180°, A 3 M 3 = 2, Γ 3 = 25 cm−1, χ(3) 1 = 200, and χ(3) 2 = 100 calculated without a, b and with c, d absorptive-dispersive interactions for charge densities of + 0.0003, + 0.00015, + 0.000015, −0.0003, −0.00015, and −0.000015 C/m2 and ionic strength of 40 μM