Abstract
First, the application of finite amplitude wave to acoustical cloaking is given. This is an extension of coordinate transformations from the linear acoustic field equation to nonlinear acoustic field equation which also shows form invariance. Then, metamaterial is applied to two examples of nonlinear acoustics. First to acoustic radiation force. Metamaterial enables a negative radiation force. Previous work on negative acoustic radiation force has the limitation only to Bessel beam. The second example is to apply to force of levitation. Metamaterial enables the control and manipulation of the force of levitation and allows for the levitation and suspension of larger objects.
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