Abstract
A piezo-optic cell having a nematic liquid crystal film and first and second wedge-shaped plates on opposite surfaces of the film which serve to vary its frequency response along the length of the cell. The cell is illuminated with polarized light and is insonified by an acoustic wave pattern to produce a real-time visual image of the acoustic wave. By exposing the cell to the applied acoustic energy, one or more resonance conditions are created to produce an extremely strong and well defined image.
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