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Scientists Close In on Invisibility Cloak |
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Written by Richard Adhikari
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Friday, 27 January 2012 06:00 |
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FG_AUTHORS: Richard Adhikari 
That invisibility cloak Harry Potter throws around himself to hide in plain sight soon may be fact, rather than fiction. Researchers at the University of Texas in Austin have demonstrated one -- sort of. The researchers hid an 18 cm cylindrical tube from microwaves by putting it in a shell of plasmonic metamaterial. Metamaterials are artificial materials engineered to have properties that may not occur in nature. Plasmonic metamaterials are negative index metamaterials, meaning they are, in essence, invisible at a certain frequency range.Read more: |
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