| 弱湍流大气传输广义Helmholtz-Gauss光束 |
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| 引用本文： | 张逸新. 弱湍流大气传输广义Helmholtz-Gauss光束[J]. 激光杂志, 2008, 29(3): 55-56 |
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| 作者姓名： | 张逸新 |
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| 作者单位： | 江南大学理学院 江苏无锡214122 |
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| 摘 要： | 在Rvtov近似和采用Tatarskii湍流大气折射率起伏谱条件下,运用实数和复数矩阵元的ABCD矩阵研究了湍流大气中广义Helmholtz-Gauss束的传输规律,研究表明广义Hellmholtz-Gauss束的横向波数与高斯束传输参量q的积在弱湍流大气传输过程中保持不变。导出了湍流大气中传输广义Helmholtz-Gauss束的平均光强。
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| 关 键 词： | Helmholtz-Gauss束 平均光强 复振幅 大气湍流 |
Propagation of generalized Helmholtz-Gauss beam in turbulent atmosphere |
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| ZHANG Yi-xin. Propagation of generalized Helmholtz-Gauss beam in turbulent atmosphere[J]. Laser Journal, 2008, 29(3): 55-56 |
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| Authors: | ZHANG Yi-xin |
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| Abstract: | Using the Rytov approximation and the Tatarskii spectrum of refractive index fluctuations of turbulent atmosphere,we analyze the propagation of Generalized Helmholtz-Gauss beam(gHzG) in turbulent atmosphere by ABCD matrices with real and complex elements.The results show that the product of the transverse wavenumher and the parameter q remains constant under propagation in weak atmospheric turbulence.A closed-form expression for the intensity of gHzG beams is derived. |
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| Keywords: | Generalized Helmholtz-Gauss beam average intensity complex field amplitude atmospheric turbulence |
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