Parametric optimization of multilevel diffractive optical elements by electromagnetic theory.

@article{Noponen1992ParametricOO,
  title={Parametric optimization of multilevel diffractive optical elements by electromagnetic theory.},
  author={Eero Noponen and Jari Turunen and A. Vasara},
  journal={Applied optics},
  year={1992},
  volume={31 28},
  pages={5910-2}
}