Abstract
The elastic and photoelastic constants of ZnTe crystals have been determined from Brillouin scattering spectra with 90 degrees -scattering geometry at room temperature. From the measured frequency shifts of the Brillouin doublets, the following values are obtained for the elastic constants: C11=7.22+or-0.02, C12=4.09+or-0.06 and C44=3.080.03 in units of 1010 N m-2. From the comparison of the absolute intensities of the Brillouin doublets measured in ZnTe with that in fused quartz whose photoelastic constants are well-known, the following values are determined for the photoelastic constants: P11=0.144+or-0.007, P12=0.094+or-0.005 and P44=0.046+or-0.003.
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