ABSTRACT
In this talk I will describe what surface plasmon polaritons
(SPPs) are, how they are excited, how they enhance surface
fluorescence, and how they can be used to produce both very
large, and effectively negative group refractive indices. The
production of effectively large refractive indices for SPPs
allows the construction of super-resolution microscopes. The
effectively negative refractive indices that can be produced
in metal/dielectric composite nanostructures have allowed the
first demonstration of 2-D cloaking in the visible part of
the spectrum. The general principle and limitations of
practical cloaking will also be discussed, and some of the
approaches that are being considered for reducing the
visibility of 3-D objects.
ABOUT OUR SPEAKER
Christopher C. Davis is Professor of Electrical and Computer Engineering
at the University of Maryland, College Park. He received the B.A. degree (with
Honors) in Natural Sciences from the University of Cambridge in 1965, the M.A.
degree from the University of Cambridge in 1970, and the Ph.D. degree in Physics
from the University of Manchester in 1970. From 1973-1975 he was a Instructor/Research
Associate at Cornell University, and from 1982-83 was a Senior Visiting Fellow
at the University of Cambridge. He has been a recipient of the following Honors
and Awards: University of Maryland Distinguished Scholar-Teacher, 1989-90; Fellow
of the Institute of Physics, 1989; AT&T/ASEE Award for Excellence in Engineering
Education,1990; Fellow of the IEEE, 1993; Invention of the Year Award in Information
Technology, University of Maryland, 2000. Professor Davis is the author of the
widely used text "Lasers and Electro-Optics," published by Cambridge University
Press, and co-author with Jack Moore and Mike Coplan of the best selling text
"Building Scientific Apparatus," now in its third edition published by Westview
Press. He is also author or co-author of 11 chapters in books, over 140 refereed
journal articles and over 220 conference papers, and is the holder of seven
awarded and several pending patents. He is Conference co-Chair of the SPIE Free
Space Laser Communications Conference, and is a frequent invited lecturer both
nationally and internationally. He has served as a scientific consultant to
several US Government agencies and industry. He is a member of the IEEE Standards
Coordinating Committee SCC-34 SC2, which deals with RF exposure from wireless
devices.
To make reservations or for more information, please contact:
Eric Shettle: shettle@nrl.navy.mil
(202) 404-8152 (W) or (301) 657-2825 (H)
or
Brooke Hester: bcrans@umd.edu
(301) 975-4360
Our following meeting is tentatively scheduled for: February 17th, 2009
Pawan K. Bhartia will talk on TBA
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