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News and Views
Nature 447, 266-267 (17 May 2007) | doi:10.1038/447266a; Published online 16 May 2007
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Optics: Beyond diffraction
Evgenii E. Narimanov1 & Vladimir M. Shalaev1
Abstract
A material with a cunningly designed optical response overcomes a fundamental limit to image resolution. This 'hyperlens' produces magnified images of objects smaller than the wavelength of the imaging light.
When an object is illuminated, information about features smaller than the wavelength of the incident light is carried in evanescent waves, whose amplitudes decrease exponentially with distance. This rapid decay means that detail is lost when an image of the object is viewed in its far field.
- Evgenii E. Narimanov and Vladimir M. Shalaev are in the Department of Electrical and Computer Engineering, Purdue University, West Lafayette, Indiana 47907, USA.
Email: evgenii@purdue.edu
Email: shalaev@purdue.edu
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