Continuously tunable ultrasonic focusing by Moiré metalenses
Guoqiang Yuan, Xinrui Li, Xing‐Feng Zhu, Jie Yao, Qi Wei, Da‐Jian Wu
Topics & Concepts
Focal pointMoiré patternUltrasonic sensorOpticsMaterials scienceFocal lengthRange (aeronautics)AcousticsPoint (geometry)OptoelectronicsPhysicsCardinal pointLens (geology)GeometryComposite materialMathematicsAcoustic Wave Phenomena ResearchMetamaterials and Metasurfaces ApplicationsUnderwater Acoustics Research