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Title The Transformation Design Method and Metamaterials: Tools to Realize Invisibility and Other Interesting Effects
Speaker/Author Schurig, David (Duke University)
Publication Date2007 Feb 21
OSTI Identifier1016719
DOE Contract NumberAC02-07CH11359
Other Number(s)TRN: US201204%%459
Resource TypeConference
Resource RelationConference: Fermilab Colloquia, Fermi National Accelerator Laboratory (FNAL), Batvia, Illinois (United States), presented on February 21, 2007
Research OrgFNAL (Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States))
Sponsoring OrgUSDOE Office of Science (SC)
Subject36 MATERIALS SCIENCE; COMMUNICATIONS; DESIGN; DISTRIBUTION; ELECTROMAGNETIC FIELDS; ENERGY CONVERSION; FREQUENCY RANGE; IMPLEMENTATION; SHAPE; SPACE-TIME; SPECIFICATIONS; TRANSFORMATIONS
Description/AbstractI will explain how the transformation design method can yield a material specification that possesses the same electromagnetic behavior as a fairly general set of imagined space-time topologies. This method has been used to design invisibility cloaks, but the method is quite general and can be used to design a wide variety of interesting devices that guide, concentrate or shape electromagnetic fields in ways that would be difficult to manage with other design methodologies. Applications range from stealth to energy conversion and distribution to wireless communications to biomedical imaging. The drawback of the method is the complexity of the material specifications that it produces, which are in general anisotropic and inhomogeneous. Only with recent advances in the field of metamaterials can these specifications be realized. I will discuss how metamaterials accomplish this and what their limitations are, e.g. bandwidth, loss, frequency range etc. I will discuss in detail the recent implementation of an invisibility cloak in the microwave spectrum.
Country of PublicationUS
LanguageEnglish
FormatMedium: AV; Other: run time 01:05:32
System Entry Date2012 Feb 23

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