Bidirectional acoustic negative refraction based on a pair of metasurfaces with both local and global PT-symmetries
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DOI: 10.1038/s41598-020-67793-x
Abstract: Negative refraction plays an important role in acoustic wave manipulation and imaging. However, conventional systems based on acoustic metamaterials suffer from the limits induced by loss-related and resolution issues. In this work, a parity-time (PT)-symmetric… read more here.
Keywords: pair; negative refraction; acoustic negative; refraction based ... See more keywords