104 citations · 400 across the 9 of their papers we have counts for
4 papers · 1 filter
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…