Experimental study on super-resolution imaging with a near-zero effective mass acoustic metamaterial
Xiaoming Zhou (), Gengkai Hu (BIT)
Prager Medal Symposium in honor of George Weng: Micromechanics, Composites and Multifunctional Materials
Mon 10:45 - 12:15
MacMillan 117
Acoustic metamaterials are artificial composites with the macroscopic property not easily found in nature materials, such as negative effective mass, modulus or anisotropic mass. We have shown that the extraordinary transmission by the acoustic metamaterial with near-zero effective mass can be used to design superlens beyond the diffraction limit. In this work, a prototype of such superlens is proposed, it consists of sandwiched perforated aluminum plates with paper sheets. The detailed design for the superlens is provided, including the design for the unit cell with a near-zero effective mass and the simulation for its superlensing effect. An experimental setup is also constructed, which validates the design.