Optically polarized selective transmission of a fractional vector vortex beam by the polarized atoms with external magnetic fields

• DOI: 10.1364/oe.487426
• Publication Date: 2023-04-18T16:02:23Z
• Authors: Yujie Sun; Zhaoying Wang
• Keywords: Optical vortex; Compass

We investigate the role of external magnetic fields and linearly polarized pump light, especially when their directions are parallel or vertical, on propagation fractional vector vortex beams (FVVBs) through a atomic system. Herein, different configurations lead to various optically selective transmissions FVVBs with topological charge α caused by atoms, which is theoretically demonstrated density matrix visualization analysis experimentally explored Cesium atom vapor. Meanwhile, we find that FVVBs-atom interaction vectorial process due optical states. In this process, selection property provides potential for realization compass based warm atoms. For FVVBs, rotational asymmetry intensity distribution, can observe some transmitted light spots unequal energy. Compared integer beam, it possible obtain more precise field direction fitting "petal" FVVBs.