Journal
JOURNAL OF APPLIED PHYSICS
Volume 128, Issue 16, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/5.0022441
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Funding
- National Natural Science Foundation of China (NNSFC) [61671414]
- Postdoctoral Science Foundation of China [2017M611198]
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To realize the multi-functional manipulation of the acoustic field with a simple artificial structure, a waveguide array based on resonant units was proposed in this work. Based on the transmission spectrum and zero-like refractive index of the waveguide unit, the amplitude of the transmitted wave can be manipulated. By changing the size of the waveguide unit flexibly, the phase of the transmitted wave can be manipulated. In addition, by extending the waveguide array to the sub-wavelength scale, an acoustic metasurface with both amplitude and phase modulation functions can be implemented, which provides new ways for the design of lightweight artificial periodic structures.
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