Abstract
Linearly polarized vectorial vortices are analyzed according to their Pancharatnam phase and experimentally demonstrated using a geometric phase element consisting of space-variant subwavelength gratings. It is shown that in the absence of a Pancharatnam phase, stable vectorial vortices that have no angular momentum arise. In contrast, if a Pancharatnam phase is present the vectorial vortices have orbital angular momentum and collapse upon propagation.
| Original language | English |
|---|---|
| Pages (from-to) | 4208-4220 |
| Number of pages | 13 |
| Journal | Optics Express |
| Volume | 14 |
| Issue number | 10 |
| DOIs | |
| State | Published - 1 Jan 2006 |
| Externally published | Yes |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics