News of the WeekOptics

Theorists Doubt Claims for Perfect Lens

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Science  24 May 2002:
Vol. 296, Issue 5572, pp. 1380-1381
DOI: 10.1126/science.296.5572.1380b

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A spat has broken out in the normally calm world of optics over whether it is possible to make a perfect lens. Two years ago, a physicist at Imperial College in London predicted that a strange class of optical materials, known as negative index media, could make a lens that focuses all the parts of a light wave, even those that normally decay. But now, two different groups of researchers are attacking his conclusions.