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 |
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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 |