ANDREA alù

New Frontiers for Wave Engineering Using Metamaterials

Metamaterials are engineered materials with properties that go well beyond what offered by nature, providing unprecedented opportunities to tailor and enhance the control of waves. In this talk, I discuss our recent activity at microwaves and THz frequencies, showing how suitably tailored meta-atoms and their arrangements open exciting avenues for wave manipulation. In particular, I will discuss our recent work on nonlocal metasurfaces and leaky-wave metasurfaces, which enable a new degree of control over radiated fields using engineered nonlocalities across an aperture. I will also discuss the role of time-modulation to enhance antenna bandwidth and realize efficient frequency conversion, phase conjugation, magnet-free nonreciprocity and topological phenomena. Insights into the underlying physics and new electromagnetic devices based on these concepts will be presented.

Andrea Alù is a Distinguished Professor at the City University of New York (CUNY), the Einstein Professor of Physics at the CUNY Graduate Center, and the Founding Director of the Photonics Initiative at the CUNY Advanced Science Research Center. He received his Laurea (2001) and PhD (2007) from the University of Roma Tre, Italy, and, after a postdoc at the University of Pennsylvania, he joined the faculty of the University of Texas at Austin in 2009, where he was the Temple Foundation Endowed Professor until Jan. 2018. Dr. Alù is a Fellow of NAI, AAAS, IEEE, MRS, OSA, SPIE and APS, and has received several scientific awards, including the Blavatnik National Award in Physics and Engineering, Dan Maydan Prize in Nanoscience, the IEEE Kiyo Tomiyasu Award, a Vannevar Bush Faculty Fellowship from DoD, the ICO Prize in Optics, the NSF Alan T. Waterman award, the OSA Adolph Lomb Medal, the Brillouin Medal, and the URSI Issac Koga Gold Medal.