Abstract
We predict that vortex dipoles nested in light beams trapped in graded-index media can undergo closed Berry trajectories, yielding periodic vortex annihilations and revivals along the light-propagation direction. The vortex revivals from vortex-free wave fronts are mediated by Freund stationary point bundles that carry the necessary Poincaré-Hopf indices. Vortex spiraling and spontaneous generation of circular-edge dislocations are also found to occur.
| Original language | English |
|---|---|
| Pages (from-to) | 1601-1603 |
| Number of pages | 3 |
| Journal | Optics Letters |
| Volume | 26 |
| Issue number | 20 |
| Publication status | Published - 15 Oct 2001 |
| Externally published | Yes |