Observation of higher-order exceptional points in a non-local acoustic metagrating
Exceptional points are singularities in the parameter space of a physical system where two or more eigenvalues, and their associated eigenvectors, simultaneously coalesce. Here, it is shown that non-local acoustic metagratings that enable precise control over their multiple orders of diffraction, ca...
Main Authors: | , , , , , , , , , |
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Format: | Article |
Language: | English |
Published: |
Nature Portfolio
2021-12-01
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Series: | Communications Physics |
Online Access: | https://doi.org/10.1038/s42005-021-00779-x |