Abstract
Theoretical studies previously performed in a sinusoidal mode 1,2 have enabled an analytical explanation of reflection and transmission phenomena generally accompanied by mode conversion. The numerous results published 3–6 refer to coefficients expressed in a complex notation. In this paper, we study the influence of these complex coefficients on the shape of the waveform in the transient mode and we apply these results to the specific case of a liquid-solid interface. To verify the validity of the predictions given by numerical simulation, we compare the amplitude and shape of the measured and simulated ultrasonic wave signal of a pulsed ultrasonic wave.
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