Abstract
Propagation of surface waves of oblique incidence across infilled trenches is considered. An analytical approach based on the Green's function technique is developed to estimate the reflection and transmission of surface waves across a layer inserted between two homogeneous quarter-spaces. For the transmission of surface waves across the layer, a differential matrix operator is constructed by using Taylor series expansion in order to relate field quantities on each side of the layer. Reflection and transmission coefficients of the Rayleigh wave across the layer are then integrated by using the representation theorem. After validating the method against experimental data, influence of the material contrast and the angle of incidence on the efficiency of an in-filled trench is examined.
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