Structural Luneburg lens for broadband ultralong subwavelength focusing
Liuxian Zhao, Hyun‐Tae Kim, Miao Yu
Topics & Concepts
OpticsFocal lengthLuneburg lensLens (geology)Full width at half maximumBroadbandConcentricGradient-index opticsEnergy (signal processing)Range (aeronautics)Materials scienceRefractive indexPhysicsMathematicsGeometryQuantum mechanicsComposite materialMetamaterials and Metasurfaces ApplicationsMicrowave Engineering and WaveguidesAcoustic Wave Resonator Technologies