Figure 3: Scanning the SFG-VS spectra and the peak fittings of Iβ cellulose from Hal. Tunicate under TIR (red color) and non-TIR (blue color) conditions in the C-H and O-H stretching vibrational regions.
From: Discovery of Cellulose Surface Layer Conformation by Nonlinear Vibrational Spectroscopy

Dots represent experimental data while lines represent curve fittings. All intensities were calibrated at the same voltage (700 V) for the SFG-VS measurements. Unlike the Avicel data in Fig. 2, the TIR-SFG-VS intensity is significantly stronger than that of the non-TIR SFG-VS.