Subdiffraction-limited imaging based on longitudinal modes in a spatially dispersive slab

  title={Subdiffraction-limited imaging based on longitudinal modes in a spatially dispersive slab},
  author={Avner Yanai and Uriel Levy},
  journal={Physical Review B},
It was proposed that a flat silver layer could be used to form a sub-diffraction limited image when illuminated near its surface plasmon resonance frequency [J. B. Pendry, Phys. Rev. Lett. 86, 3966 (2000)]. In this paper, we study the possibility of obtaining sub diffraction resolution using a different mechanism, with no surface plasmons involved. Instead, by taking into account the non-local response of a thin silver slab, we show that longitudinal modes contribute to the formation of a sub… 
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Negative refraction makes a perfect lens
  • Pendry
  • Physics
    Physical review letters
  • 2000
The authors' simulations show that a version of the lens operating at the frequency of visible light can be realized in the form of a thin slab of silver, which resolves objects only a few nanometers across.