Internal and Surface Contribution to Light Diffraction by Surface-Acoustic Waves

An analysis is done of depth interaction between polarized light and acoustic-surface waves, which gives account for the actual dependence of the scattered-light intensity vs the angle of incidence, in transmission experiments. Measurements were performed at 11.8 and 18.8 MHz for surface waves propagating in Y direction on X-cut, α-quartz, and Z-polarized light.