CPC B06B 3/00 (2013.01) [B06B 1/18 (2013.01); G10K 11/24 (2013.01); H02N 2/186 (2013.01)] | 22 Claims |
1. A system comprising:
a vibration source;
a first structure, wherein the first structure lacks space inversion symmetry, wherein the first structure comprises a first elastic lattice;
a second structure, wherein the second structure lacks space inversion symmetry, wherein the second structure comprises a second elastic lattice;
wherein the first structure is coupled to the second structure;
wherein each of the first elastic lattice and the second elastic lattice have a mirror symmetry to each other; and
wherein an interface of the first structure and the second structure is configured to propagate a unidirectional wave from the vibration source.
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