Time-varying metamaterials bring in an extra degree of freedom, enabling applications unachievable by normal metamaterials and opening up new opportunities.
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Won, R. A new knob for metamaterials. Nat. Photon. 15, 718–719 (2021). https://doi.org/10.1038/s41566-021-00886-9
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DOI: https://doi.org/10.1038/s41566-021-00886-9
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