Pockels coefficients for rare-gas crystals

New Brillouin scattering measurements with Xe single crystals lead to ratios of the Pockels elasto-optic coefficients (p12p11=1.020.05 and p44p11=0.130.01), which are consistent with the ratios for Kr and Ar crystals. The experimental values of the Pockels ratios for Xe, Kr, and Ar are used together with results from a recent theory of Brillouin scattering by Sipe, to obtain values of the Pockels coefficients and short-range-interaction parameters for these rare-gas crystals. © 1979 The American Physical Society.