Abstract
Multiple vortices with different topological charges are formed by the use of two sequential geometric phase elements. These elements are realized by quasi-periodic subwavelength gratings. The first element is a spiral phase element and the second element is a spherical phase element. We provide a theoretical analysis and an experimental demonstration of the formation of the multiple vortices that comprise scalar vortices and a vectorial vortex.
| Original language | English |
|---|---|
| Pages (from-to) | 1594-1596 |
| Number of pages | 3 |
| Journal | Optics Letters |
| Volume | 31 |
| Issue number | 11 |
| DOIs | |
| State | Published - 1 Jun 2006 |
| Externally published | Yes |