
Engineering and Technology
Towards altering sound frequency at will by a linear meta-layer with time-varying and quantized properties
Y. Zhang, K. Wu, et al.
Discover a groundbreaking mechanism that transforms wave frequencies into desired values through a digitally pre-defined, time-varying material property. This innovative research by Yumin Zhang, Keming Wu, Chunqi Wang, and Lixi Huang showcases an electromagnetic diaphragm capable of modulating acoustic impedance and has profound implications for super-resolution imaging and encrypted underwater communication.
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