Dielectric metalenses with engineered point spread function.

@article{Shanei2017DielectricMW,
  title={Dielectric metalenses with engineered point spread function.},
  author={Mohammad Mahdi Shanei and Mahdieh Hashemi and Davood Fathi and Carlos J. Zapata-Rodr{\'i}guez},
  journal={Applied optics},
  year={2017},
  volume={56 32},
  pages={8917-8923}
}
High-index silicon nanoblocks support excitation of both electric and magnetic resonance modes at telecommunication wavelengths. At frequencies where both electric and magnetic resonance modes are excited simultaneously, changing the geometrical dimensions of the silicon cubes creates a 2π full span over the phase of the transmitted light in different amplitude ranges. We take advantage of the additional power-flux modulation of the scattered signal to focus the incident light with desired full… CONTINUE READING