Dielectric metasurfaces for beam bending and near-unity numerical aperture lenses
2017
In this work, we propose a novel approach to efficient high-angle light beam bending and demonstrate it using TiO 2 and Si metasurfaces operating in the visible and near IR spectral ranges. The proposed approach allows large angle bending, with up to 82° experimentally demonstrated. Based on this concept we designed a lens with near-unity numerical aperture (NA∼0.99), exceeding all previously reported values.
- Correction
- Source
- Cite
- Save
- Machine Reading By IdeaReader
6
References
1
Citations
NaN
KQI