Scintillation index of double vortex beams in turbulent atmosphere

摘要

We have studied the scintillation index of a double vortex beam propagating in strong turbulent atmosphere by numerical simulation. It is found that the on-axis scintillation index of double vortex beams is smaller than that of single vortex beams propagating in the atmospheric turbulence. Moreover, when the beam propagation distance exceeds a certain value, the on-axis scintillation indices of double vortex beams are smaller than that of Gaussian beams.