Engineering 'ghost' objects: A breakthrough in scattering illusion

A team at the NUS Department of Electrical & Computer Engineering led by Dr Qiu Cheng-Wei has come out with an optical device to "engineer" ghosts. When someone claims he has seen a ghost, the phenomenon may be caused by an optical illusion happening through a wild stroke of nature. But the actual engineering of such a phenomenon is the holy grail of researchers in the field of optical illusions, electromagnetic, and radar detection—not only because of the thrill and excitement of being able to create a "ghost" but because of the implications it will have in science and applications.

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