6 papers
Achromatic metasurfaces with inversely customized dispersion for ultra-broadband acoustic beam engineering
Hao-Wen Dong, Chen Shen, Sheng-Dong Zhao +7
Metasurfaces, the ultrathin media with extraordinary wavefront modulation ability, have shown versatile potential in manipulating waves. However, existing acoustic metasurfaces are…
Robust 3D multi-polar acoustic metamaterials with broadband double negativity
Hao-Wen Dong, Sheng-Dong Zhao, Yue-Sheng Wang +2
Acoustic negative-index metamaterials show promise in achieving superlensing for diagnostic medical imaging. In spite of the recent progress made in this field, most metamaterials…
Systematic design and realization of double-negative acoustic metamaterials by topology optimization
Hao-Wen Dong, Sheng-Dong Zhao, Peijun Wei +3
Double-negative acoustic metamaterials (AMMs) offer the promising ability of superlensing for applications in ultrasonography, biomedical sensing and nondestructive evaluation. Her…
A continuously tunable acoustic metasurface for transmitted wavefront manipulation
Sheng-Dong Zhao, Yue-Sheng Wang, Chuanzeng Zhang
Previously reported acoustic metasurfaces that consist of fixed channels, are untunable to meet the broadband requirement and alterable functionalities. To overcome this limitation…
Topology optimization of broadband hyperbolic elastic metamaterials with super-resolution imaging
Hao-Wen Dong, Sheng-Dong Zhao, Yue-Sheng Wang +1
Hyperbolic metamaterials are strongly anisotropic artificial composite materials at a subwavelength scale and can greatly widen the engineering feasibilities for manipulation of wa…
Topology optimization of anisotropic elastic metamaterial with broadband double-negative index
Hao-Wen Dong, Sheng-Dong Zhao, Yue-Sheng Wang +1
Aiming at the promising superlensing for the medical ultrasonic and detection, the double-negative metamaterials which possess the negative mass density and elastic modulus simulta…