Determination of Nonlinear Hyperpolarizability of Bent-Shaped Molecules using Hyper-Rayleigh Scattering

The first-order hyperpolarizability β was determined for bent-shaped molecules P-8-PIMB and P-8-O-PIMB using the Hyper Rayleigh scattering method. βs of these materials were found to be relatively large, about 30×10−30 esu. These results are consistent with the second-harmonic generation experiments performed in their liquid crystalline phases.