Dressed Airy Vortex Beam in a Hot Atomic Medium

Introducing vortices into an Airy beam by the interference between the lobes of the Airy beam for the first time, the modulation of Airy vortices is experimentally and theoretically investigated by electromagnetically induced transparency (EIT) effect and changing the number of side lobes of the Airy beam. The formation and disappearance of vortices in Airy beams can be caused by changing the number of side lobes. The EIT effect can induce the movement of vortex phase singularity by regulating the intensities of lobes in Airy beams. However, changing the number of side lobes can change the energy distribution of the lobes through the energy flow due to the self-healing of Airy beams, thus causing the displacement of vortex phase singularity. In addition, the simulation of the Poynting vector shows that the less the side lobes are blocked, the more energy can be retained in the main lobe and the unblocked side lobes, so that the overall shape of the Airy beam can be better maintained. Such studies provide a new method to acquire and adjust Airy vortex beams and can be applied in the realm of optical micromanipulation.

Automated summary

Introducing vortices into an Airy beam for the first time by modulating the number of side lobes and using the EIT effect, this study investigates the formation and manipulation of Airy vortices. The movement of the vortex phase singularity can be controlled by adjusting the intensities of the lobes in the Airy beam. Additionally, changing the number of side lobes alters the energy distribution and displacement of the vortex phase singularity. These findings offer a novel approach to acquiring and adjusting Airy vortex beams, with potential applications in optical micromanipulation.