by kfc, Technology Review
Given the headlines associated with invisibility cloaks, you could be forgiven for thinking that a Star Trek-style cloaking device will be available in stores before the holiday season. Sadly, no. It’s true that in recent years researchers have made great strides in their theoretical understanding of how these cloaks work and consequently built increasingly complex and impressive devices. But these devices generally work in the microwave region of the electromagnetic spectrum, where wavelengths are measured in centimetres. A few teams have made devices that work in the optical realm but only in two dimensions and over extremely short distances.
http://www.technologyreview.com/blog/arxiv/27838/?p1=blogs
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