Light Propagation with Phase Discontinuities: Generalized Laws of Reflection and Refraction

@article{Yu2011LightPW,
  title={Light Propagation with Phase Discontinuities: Generalized Laws of Reflection and Refraction},
  author={Nanfang Yu and Patrice Genevet and Mikhail A. Kats and Francesco Aieta and Jean‐Philippe Tetienne and Federico Capasso and Zeno Gaburro},
  journal={Science},
  year={2011},
  volume={334},
  pages={333 - 337}
}
Light propagation can be controlled with plasmonic interfaces that introduce abrupt phase shifts along the optical path. Conventional optical components rely on gradual phase shifts accumulated during light propagation to shape light beams. New degrees of freedom are attained by introducing abrupt phase changes over the scale of the wavelength. A two-dimensional array of optical resonators with spatially varying phase response and subwavelength separation can imprint such phase discontinuities… Expand
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