New Frontiers for Wave Manipulation Using Metamaterials
Andrea Alù
Electrical and Computer Engineering, University of Texas at Austin
ABSTRACT: Metamaterials are artificial materials with properties well beyond what was offered by nature. Metamaterials provide unprecedented opportunities to tailor and enhance the interaction between waves and materials. Alù discusses his recent research activity in electromagnetics, nano-optics and acoustics, showing how suitably tailored meta-atoms and arrangements of them open exciting venues to manipulate and control waves in unprecedented ways. He discusses his recent theoretical and experimental results, including metamaterials for scattering suppression, metasurfaces to control wave propagation and radiation, large nonreciprocity without magnetic bias, giant nonlinearities in properly tailored metamaterials and metasurfaces, and active metamaterials. Physical insights into these exotic phenomena, new devices based on these concepts, and their impact on technology are also discussed.
