Harry Potter's Invisibility Cloak Becomes Reality

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clipped from www.eng.umd.edu
Team Introduces World's First Invisibility Cloak
Christopher Davis and Igor Smolyaninov

A Clark School research team comprised of Visiting Research Scientist Igor Smolyaninov, Professor of Electrical and Computer Engineering Christopher Davis, and graduate student Yu-Ju Hung, has created the world's first true invisibility cloak.

The new cloak is just 10 micrometers in diameter; by comparison, a human hair is between 50 to 100 micrometers wide. The cloak works by guiding rays of light around an object hidden inside and releasing the light rays on the other side. This causes the light waves to appear to have moved in a straight line, making the cloak and the object inside of it invisible.

The team's research has been covered by the media, including New Scientist, and a manuscript describing the research is available online at http://arxiv.org/abs/0709.2862. The research was also included in Discover Magazine's Top 100 science stories of 2007.

View a press release about this technology online.

December 18, 2007

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2-D Invisibility Cloak Created
Researchers develop 2-D invisibility cloak
Harry Potter's invisibility cloak becomes a reality
A. James Clark School of Engineering :: Clark School Researchers Develop Two-Dimensional Invisibility Cloak