Silicon nanostructure cloak operating at optical frequencies

@article{Gabrielli2009SiliconNC,
  title={Silicon nanostructure cloak operating at optical frequencies},
  author={L. Gabrielli and J. Cardenas and C. Poitras and M. Lipson},
  journal={Nature Photonics},
  year={2009},
  volume={3},
  pages={461-463}
}
The ability to render objects invisible using a cloak (such that they are not detectable by an external observer) has long been a tantalizing goal1,2,3,4,5,6. Here, we demonstrate a cloak operating in the near infrared at a wavelength of 1,550 nm. The cloak conceals a deformation on a flat reflecting surface, under which an object can be hidden. The device has an area of 225 µm2 and hides a region of 1.6 µm2. It is composed of nanometre-size silicon structures with spatially varying densities… Expand

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