Metasurface Freeform Nanophotonics

@article{Zhan2017MetasurfaceFN,
  title={Metasurface Freeform Nanophotonics},
  author={Alan Zhan and Shane Colburn and Christopher M. Dodson and Arka Majumdar},
  journal={Scientific Reports},
  year={2017},
  volume={7}
}
Freeform optics aims to expand the toolkit of optical elements by allowing for more complex phase geometries beyond rotational symmetry. Complex, asymmetric curvatures are employed to enhance the performance of optical components while minimizing their size. Unfortunately, these high curvatures and complex forms are often difficult to manufacture with current technologies, especially at the micron scale. Metasurfaces are planar sub-wavelength structures that can control the phase, amplitude… 

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