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Thursday, February 7, 2008

Holograms 101: the durable, rewritable holographic display

Most of us are familiar with the cliché about tradeoffs: fast, cheap, or good, choose any two. When it comes to holograms—two-dimensional media that can be used to create a three-dimensional image—there has been a well-defined series of tradeoffs among fast rewritability, image quality, image persistence, and image size. A paper that will appear in today's issue of Nature describes the production of a polymer that makes huge strides on all of these problems. As a result, rewritable holograms have become faster and better (although there was no mention of cost).

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