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VERSION:2.0
PRODID:-//Memento EPFL//
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SUMMARY:Dielectric resonator antennae: from microwaves to optical frequenc
 ies
DTSTART:20130820T110000
DTSTAMP:20260916T061415Z
UID:edf813d6fac44325742f711b18690bfacb0e585047bc64daef961ed8
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Christophe Fumeaux\, University of Adelaide\nBio: Christ
 ophe Fumeaux received the Dipl. Phys. and Ph.D. degrees in physics from th
 e ETH Zurich\, Switzerland\, in 1992 and 1997\, respectively. From 1998 to
  2000\, he was a Postdoctoral Researcher with the School of Optics\, Unive
 rsity of Central Florida\, Orlando. From 2001 to 2008\, he was a Senior Sc
 ientist with the Laboratory for Electromagnetic Fields and Microwave Elect
 ronics\, ETH\, Zurich. Since 2008\, he has been with The University of Ade
 laide\, where he is currently a full Professor with the School of Electric
 al and Electronic Engineering. His current main research interest concerns
  computational electromagnetics\, antenna engineering\, THz technology and
  the application of RF design principles to optical micro/nano-structures.
  He has published more than 180 technical papers in peer-reviewed journals
  and conferences\, in both RF and optical areas.\nProf. Fumeaux is a Futur
 e Fellow of the Australian Research Council. He is an Associate Editor for
  the IEEE Transactions on Microwave Theory and Techniques. He was awarded 
 the ETH Medal for his doctoral dissertation\, the 2004 Outstanding Paper A
 ward of the Applied Computational Electromagnetics Society (ACES)\, and th
 e Best Symposium Paper Award at the APEMC 2012.\nDielectric Resonator Ante
 nnas (DRAs) have been proposed in the 1980’s as alternatives to conventi
 onal low-gain printed-circuit antennas. They are typically composed of a l
 ow-loss dielectric block mounted on a ground plane. Their operation exploi
 ts the high “radiation losses” of open dielectric resonators operating
  in their low-order modes. DRAs are characterized by a small size\, wide b
 andwidth\, simple feeding and design versatility. Their most decisive adva
 ntage however may be their high radiation efficiency when realised with lo
 w-loss dielectric materials. This property is most relevant in the millime
 tre-wave frequency range\, where conductor losses become significant in co
 nventional printed antennas. The presentation will firstly review some of 
 the DRA-related activities at the University of Adelaide\, with examples o
 f wideband geometries\, advanced feeding methods\, multi-mode multi-functi
 on designs and high-efficiency millimetre-wave devices. A second part of t
 he talk will be dedicated to the extension of the DRA principle towards op
 tical frequencies. The design and manufacture of a reflectarray of dielect
 ric resonator nano-antennas operating at visible frequencies will be prese
 nted\, with experimental validation as deflecting meta-surface for 633 nm 
 wavelength light.
LOCATION:MXG 110
STATUS:CONFIRMED
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