Subwavelength Sound Focusing and Imaging Via Gradient Metasurface-Enabled Spoof Surface Acoustic Wave Modulation

Keyphrases

• Sound Focusing 100%
• Wave Modulation 100%
• Gradient Index 100%
• Phase Gradient Metasurface 100%
• Subwavelength 100%
• Spoof Surface Acoustic Wave 100%
• Sound Imaging 100%
• Acoustic Metasurface 66%
• Design Approach 66%
• Airborne Sound 66%
• Local Resonance 33%
• Plane Wave 33%
• Acoustic Waves 33%
• Acoustic Imaging 33%
• Subwavelength Scale 33%
• Dispersion Relation 33%
• Energy Flow 33%
• Index Distribution 33%
• Wave Physics 33%
• Unit Cell Parameters 33%
• Super-resolution 33%
• Diffraction Limit 33%
• Acoustic Energy 33%
• Effective Refractive Index 33%
• Refractive Index Modulation 33%
• Focusing Resolution 33%
• Experimental Realization 33%
• Proposed Design 33%
• Surface Acoustic Wave Devices 33%
• Locally Resonant 33%
• Surface Modes 33%
• Resonant Elements 33%

Physics

• Metasurface 100%
• Acoustic Wave 100%
• Refractivity 66%
• Plane Wave 33%
• Modulation Index 33%
• Acoustic Imaging 33%
• Surface Acoustic Wave Device 33%
• Wave Physics 33%