Coherence-induced Polarization Effects in Vector Vortex Beams

TL;DR

This paper investigates how coherence properties influence polarization and intensity profiles in vector vortex beams, revealing new ways to control beam characteristics for advanced optical applications.

Contribution

It introduces the concept of coherence-induced polarization effects in vector vortex beams, both theoretically and experimentally, highlighting how coherence manipulation can shape beam properties.

Findings

Depolarization increases with decreasing transverse correlation-width.

Intensity profile and DOP can be shaped while maintaining polarization distribution.

Polarization singularity index affects intensity variation and DOP-dip.

Abstract

We demonstrate theoretically and experimentally coherence-induced polarization changes in generic and higher-order vector vortex beams with polarization singularity. The prominent depolarization on decreasing transverse correlation-width in focused partially coherent vector vortex beam provides a means to shape the intensity profile and the degree of polarization (DOP) while preserving the polarization distribution. The intensity variation and DOP-dip are found to be dependent on the polarization singularity index of the beam. Our results may provide an additional degree of freedom in the myriad of applications presently projected with various types of vector vortex beams.