Invisibility shield gets blueprint

March 8, 2005 

Two engineers, Andrea Alù and Nader Engheta of the University of Pennsylvania in Philadelphia have come up with a 'plasmonic cover' which they claim could render objects "nearly invisible to an observer". 
The idea is still in its infancy, but it is said not to violate any obvious laws of physics. John Pendry, a physicist at Imperial College in London, UK: "The concept is an interesting one, with several important potential applications. It could find uses in stealth technology and camouflage." 
Earlier attempts at constructing an invisibility screen resulted in the chameleon-principle: screens were coloured to match their background, rendering them hard, but not impossible to see, but usually from only a limited point of view.
Invisibility shield gets blueprint March 8 , 2005 Two engineers , Andrea Alù and Nader Engheta of the University of Pennsylvania in Philadelphia have come up with a ' plasmonic cover ' which they claim could render objects " nearly invisible to an observer " . The idea is still in its infancy , but it is said not to violate any obvious laws of physics . John Pendry , a physicist at Imperial College in London , UK : " The concept is an interesting one , with several important potential applications . It could find uses in stealth technology and camouflage . " Earlier attempts at constructing an invisibility screen resulted in the chameleon - principle : screens were coloured to match their background , rendering them hard , but not impossible to see , but usually from only a limited point of view .
Invisibility shield
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blueprint
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Two engineers
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Andrea Alù
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Nader Engheta
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the University of Pennsylvania
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Philadelphia
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a 'plasmonic cover
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which they
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objects
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an observer
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The idea
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its infancy
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any obvious laws
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physics
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John Pendry
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a physicist
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Imperial College
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London
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UK
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The concept
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an interesting one
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several important potential applications
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uses
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stealth technology
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camouflage
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an invisibility screen
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the chameleon-principle
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screens
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their background
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them
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only a limited point
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view
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