Scintillation index of higher-order cos-Gaussian, cosh-Gaussian and annular beams

摘要: In this paper, via the generalized beam formulation, we evaluate scintillation index for higher-order general beams propagating through weak atmospheric turbulence. The investigated types are cos-Gaussian, cosh-Gaussian and annular beams. indices of these plotted with respect to propagation length, source size order beam. According our graphical outputs, have less on-axis than zero-order at longer distances. exhibits a slight increase when even-ordered is made higher. Moreover, study on variation shows that, most range, cos-Gaussian lower other