Negative refraction makes a perfect lens

  title={Negative refraction makes a perfect lens},
  journal={Physical review letters},
  volume={85 18},
  • Pendry
  • Published 30 October 2000
  • Physics
  • Physical review letters
With a conventional lens sharpness of the image is always limited by the wavelength of light. An unconventional alternative to a lens, a slab of negative refractive index material, has the power to focus all Fourier components of a 2D image, even those that do not propagate in a radiative manner. Such "superlenses" can be realized in the microwave band with current technology. Our simulations show that a version of the lens operating at the frequency of visible light can be realized in the form… 

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