Polarization effects on the hyper-Raman spectra of carbon tetrachloride: A joint experimental-theoretical study

The hyper-Raman spectra of pure carbon tetrachloride in liquid phase for different polarization effects of incident and scattered lights, was investigated. By the use of 1064 nm fundamental line, polarized hyper-Raman spectra were recorded, in conditions where the quadratic dependence of integrated hyper-Rayleigh scattering was verified. It was observed that incident mean power for hyper-Raman acquisitions was around 2.3 W, corresponding to 750 μJ pulses. The anharmonicity corrections to the hyper-Raman intensities and the Fermi resonance splitting were also considered to simulate the spectrum.