Arbitrary polarization conversion for pure vortex generation with a single metasurface
The purity of an optical vortex beam depends on the spread of its energy among different azimuthal and radial modes, also known as ℓ$\ell $- and p-modes. The smaller the spread, the higher the vortex purity and more efficient its creation and detection. There are several methods to generate vortex b...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2020-08-01
|
| Series: | Nanophotonics |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/nanoph-2020-0332 |