Magnifying Superlens in the Visible Frequency Range

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Science  23 Mar 2007:
Vol. 315, Issue 5819, pp. 1699-1701
DOI: 10.1126/science.1138746

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We demonstrate a magnifying superlens that can be integrated into a conventional far-field optical microscope. Our design is based on a multilayer photonic metamaterial consisting of alternating layers of positive and negative refractive index, as originally proposed by Narimanov and Engheta. We achieved a resolution on the order of 70 nanometers. The use of such a magnifying superlens should find numerous applications in imaging.

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