Abstract
In this Letter, Young's double-slit experiment with vector vortex beams is investigated. We present the results for various Poincaré-Hopf index beams of this class considering all four major types. Polarization associated morphological changes in the far-field interference pattern are studied both theoretically and experimentally. The Fraunhofer pattern consists of lattices of polarization singularities of the generic type, located on a line, in a direction perpendicular to the slit. The number of linear lattices varies as a function of Poincaré-Hopf index η of the beam that is diffracted, and the number of intensity nulls occurring along the vertical line is equal to |𝜂|.
| Original language | English |
|---|---|
| Pages (from-to) | 4136-4139 |
| Number of pages | 4 |
| Journal | Optics Letters |
| Volume | 46 |
| Issue number | 17 |
| Early online date | 19 Aug 2021 |
| DOIs | |
| Publication status | Published - 1 Sept 2021 |