Abstract: Abstract. Acoustic metamaterials, specifically engineered for high-temperature applications, play a pivotal role in mitigating noise under extreme conditions, particularly for low-frequency noise control. Traditional porous ...

Abstract: Abstract. In recent years, significant research attention has been directed toward the sound absorption properties of granular materials, owing to their inherently reconfigurable and tunable microstructural characteristics. ...

Abstract: Metasurfaces are advantageous in wavefront manipulation owing to their compact and flat nature. Particularly, ultrathin and completely smooth metasurfaces with giant phase delay and perfect impedance match are critically ...