Speaker:
Fernando L. Teixeira
Associate Professor
Ohio State University
Columbus, OH, USA
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http://www.ece.osu.edu/~teixeira/

Date: Tuesday December 23, 2008
Time: 1:00 – 3:00 pm
Location: Main NU Building (B2) – Auditorium.

Abstract

"Metamaterials" are composite materials that inherit their electromagnetic properties from their (designed) geometrical structure rather than only from their material components. Metamaterials can exhibit extraordinary electromagnetic properties not found in bulk natural materials, and have potential to revolutionize many RF, microwave, and optical devices.

In this talk, we will provide an overview of two classes of metamaterials. (1) The first class are dispersion-engineered metamaterials designed to exhibit an stationary inflection point in the dispersion diagram. A pulse propagating in such material will be dramatically slowed down with a corresponding dramatic increase in the amplitude, providing a route to antenna miniaturization. (2) The second class are plasmonic waveguides, which are nanoscale structures designed to guide light below the diffraction limit and provide a route to truly nanophotonic devices.

Biography

Fernando L. Teixeira is an Associate Professor with the Department of Electrical and Computer Engineering at The Ohio State University. He received the Ph.D. degree in electrical engineering from the University of Illinois at Urbana-Champaign and did post-doctoral work at Massachusetts Institute of Technology. His research interests include computational electromagnetics/optics, inverse scattering, and study of wave and transport phenomena for remote sensing applications. Dr. Teixeira has authored over 90 journal articles in those areas and currently serves as Associate Editor for the IEEE Antennas and Wireless Propagation Letters. He has received a number of prizes for his research, including the CAREER Award from the National Science Foundation in 2004 and the triennial Booker Fellowship from the International Union of Radio Science in 2005.