PerspectiveMetamaterials

A cloaking coating for murky media

Science  25 Jul 2014:
Vol. 345, Issue 6195, pp. 384-385
DOI: 10.1126/science.1256753

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Summary

For centuries, magicians have created the illusion of invisibility with the assistance of smoke and mirrors: Mirrors redirect light and fool our eyes; smoke conceals the trickery. The concept of redirecting light has become routine in the ongoing development of “invisibility cloaks”—constructs of specially designed materials that can route light around an object, making it appear as if both the object and cloak are empty space. On page 427 of this issue, Schittny et al. (1) show how to use the other half of the magicians' tool kit, showing that objects in a smoky or “diffusive” environment can be perfectly hidden from sight.