Wave propagation in an articificial structure showing effective negative index medium.
The phase of the sound wave in the middle part of the animation is opposed to the propagation of energy, which characterizes a negative refractive medium. One can observe the effects of discrete elementary cells in the discontinuities of the sound pressure propagating in this part of the structure.
The phase of the sound wave in the middle part of the animation is opposed to the propagation of energy, which characterizes a negative refractive medium. One can observe the effects of discrete elementary cells in the discontinuities of the sound pressure propagating in this part of the structure.
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Technologie