The analysis of anisotropic the non-Kolmogorov turbulence effect on asymmetrical Gaussian beam propagation in a marine atmosphere

被引:4
作者
Ata, Yalcin [1 ]
Baykal, Yahya [2 ]
机构
[1] TUBITAK Def Ind Res & Dev Inst TUBITAK SAGE, PK 16, TR-06261 Ankara, Turkey
[2] Cankaya Univ, Dept Elect Elect Engn, Yukanyurtcu Mah Mimar Sinan Cad 4, TR-06790 Ankara, Turkey
关键词
optical turbulence; anisotropy; scintillation; propagation; non-Kolmogorov turbulence; marine atmosphere; AMPLITUDE CORRELATION-FUNCTION; OPTICAL WAVES PROPAGATION; ANALYTICAL EXPRESSIONS; AVERAGE TRANSMITTANCE; INTENSITY; SCINTILLATIONS; PLANE;
D O I
10.1088/1555-6611/ab1bdc
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The variations of the scintillation index of an asymmetrical Gaussian beam are investigated when the beam propagates in anisotropic non-Kolmogorov marine atmospheric turbulence. The results indicate that the scintillation decreases when the anisotropy factors in both x and y directions increase. Increases in the beam asymmetry ratio and the inner scale length increase the scintillation index level. The scintillations are found to increase as the propagation distance and structure constant increase, and as the wavelength decreases. Being valid for any asymmetry and anisotropic factor, for small values of the power law exponent, alpha of non-Kolmogorov marine atmospheric turbulence, the scintillation index tends to increase proportionally with alpha. However, as alpha is further increased, the scintillation index starts to decrease after reaching a peak value. Larger anisotropy in the non-Kolmogorov marine turbulence is found to be preferable since the scintillation index is found to decrease at large anisotropic factors.
引用
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页数:5
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