Experimental demonstration of Fresnel zone plate lens for robust subwavelength focusing at mega hertz
Xiao Pan, Long‐Sheng Zeng, Yong Li, Xuefeng Zhu, Yabin Jin
Topics & Concepts
OpticsFull width at half maximumZone plateFresnel zoneFocal lengthBroadbandLens (geology)UnderwaterPhysicsRange (aeronautics)Materials scienceDiffractionGeologyComposite materialOceanographyUnderwater Acoustics ResearchAcoustic Wave Phenomena ResearchAerodynamics and Acoustics in Jet Flows