Log-amplitude variance for a Gaussian-beam wave propagating through non-Kolmogorov turbulence.
In the past decades, both the increasing experimental evidences and some results of theoretical investigation on non-Kolmogorov turbulence have been reported. This has prompted the study of optical propagation in non-Kolmogorov atmospheric turbulence. In this paper, using a non-Kolmogorov power spectrum which owns a generalized power law instead of standard Kolmogorov power law value 11/3 and a generalized amplitude factor instead of constant value 0.033, the log-amplitude variances for a Gaussian-beam wave are derived in the weak-fluctuation regime for a horizontal path. The analytic expressions are obtained and then used to analyze the effect of spectral power-law variations on the log-amplitude fluctuations of Gaussian-beam wave.
Tan
Liying
L
National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology, Harbin, China.
Du
Wenhe
W
Ma
Jing
J
Yu
Siyuan
S
Han
Qiqi
Q
D003198:Computer Simulation; D008027:Light; D015233:Models, Statistical; D009391:Nephelometry and Turbidimetry / Q000379:methods*; D017711:Nonlinear Dynamics; D016011:Normal Distribution; D012542:Scattering, Radiation