Abstract
Optical second harmonic generation (SHG) measurements have been carried out on the B2 phases of three liquid crystal materials composed of conventional banana-shaped molecules (P-10-O-PIMB, P-8-O-PIMB and P-8-PIMB). Quantitative values of the second order susceptibilities dij have been deduced from SHG measurements at oblique incidences on polydomain racemic samples under an electric field. The dij coefficients are in the range 1-10 pm V−1.
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