Negative Refraction at Visible Frequencies

  title={Negative Refraction at Visible Frequencies},
  author={Henri J. Lezec and Jennifer A. Dionne and Harry A. Atwater},
  pages={430 - 432}
Nanofabricated photonic materials offer opportunities for crafting the propagation and dispersion of light in matter. We demonstrate an experimental realization of a two-dimensional negative-index material in the blue-green region of the visible spectrum, substantiated by direct geometric visualization of negative refraction. Negative indices were achieved with the use of an ultrathin Au-Si3N4-Ag waveguide sustaining a surface plasmon polariton mode with antiparallel group and phase velocities… Expand

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