光电子快报(英文版), 2015, 11 (2): 141, Published Online: Oct. 12, 2017
Experimental measurement of scintillation index of vortex beams propagating in turbulent atmosphere
Abstract
The scintillation indices (SIs) of Gaussian beams and vortex beams propagating in turbulent atmosphere are investigated experimentally. It is shown that with the increase of propagation distance, the SI of Gaussian beam around optical axis increases gradually, but the SI of vortex beam with topological charge of 4 increases, achieves the maximum value at a fixed distance, and then decreases as the continued increase of propagation distance. The SI of vortex beam can be smaller than that of Gaussian beam under certain conditions.
CHEN Zi-yang, CUI Sheng-wei, ZHANG Lei, SUN Cun-zhi, XIONG Meng-su, PU Ji-xiong. Experimental measurement of scintillation index of vortex beams propagating in turbulent atmosphere[J]. 光电子快报(英文版), 2015, 11(2): 141.