104 citations · 400 across the 9 of their papers we have counts for
9 papers
Elastic metamaterial with simultaneously negative Mass Density, Bulk Modulus and Shear Modulus
Ji-En Wu, Xiaoyun Wang, Bing Tang +3
We present a study of elastic metamaterial that possesses multiple local resonances. We demonstrated that the elastic metamaterial can have simultaneously three negative effective…
Acoustic one-way mode conversion and transmission by sonic crystal waveguides
Shiliang Ouyang, Hailong He, Zhaojian He +2
We proposed a scheme to achieve one-way acoustic propagation and even odd mode switching in two mutually perpendicular sonic crystal waveguides connected by a resonant cavity. The…
Interplay between Fano resonance and symmetry in non-Hermitian discrete systems
Baogang Zhu, Rong Lü, Shu Chen
We study the effect of PT-symmetric complex potentials on the transport properties of non-Hermitian systems, which consist of an infinite linear chain and two side-coupled defect p…
Surface-Plasmon-Polariton (SPP)-Like Acoustic Surface Waves on Elastic Metamaterials
Ke Deng, Zhaojian He, Yiqun Ding +2
We investigate the dispersion properties of the acoustic surface waves on surface of elastic metamaterials. With an analytical approach, we show that unconventional acoustic surfac…
Designable hybrid sonic crystals for transportation and division of acoustic images
Zhaojian He, Ke Deng, Heping Zhao +1
Conventional sonic crystal (SC) devices designed for acoustic imaging can focus acoustic waves from an input source into only one image but not multi-images. Furthermore the output…
Extraordinary acoustic reflection enhancement by acoustically-transparent thin plates
Zhaojian He, Shasha Peng, Chunyin Qiu +6
We report an observation of the extraordinary high reflection of acoustic waves in water by thin epoxy plates partitioned by subwavelength cuts, whereas such plates without structu…
Acoustic transmission enhancement through a periodically-structured stiff plate without any opening
Zhaojian He, Han Jia, Chunyin Qiu +6
We report both experimentally and theoretically that the enhanced acoustic transmission can occur in the subwavelength region through a thin but stiff structured-plate without any…
Graded negative index lens with designable focal length by phononic crystal
Ke Deng, Yiqun Ding, Zhaojian He +3
We realize a flat lens with graded negative refractive index by a two-dimensional phononic crystal. The index-grade is achieved by gradual modification of the filling fraction alon…
Theoretical study of subwavelength imaging by acoustic metamaterial slabs
Ke Deng, Yiqun Ding, Zhaojian He +3
We investigate theoretically subwavelength imaging by acoustic metamaterial slabs immersed in the liquid matrix. A near-field subwavelength image formed by evanescent waves is achi…