Stochastic electromagnetic beams for LIDAR systems operating through turbulent atmosphere
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- Korotkova, O., Cai, Y. & Watson, E. Appl. Phys. B (2009) 94: 681. doi:10.1007/s00340-009-3404-4
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With the help of the generalized Huygens–Fresnel integral and the ABCD matrix approach a bistatic LIDAR system involving a rough target at a distant location in a turbulent atmosphere is modeled. The system operates by means of an optical beam which has arbitrary spectral composition, and states of coherence and polarization. The rough target is modeled as a combination of a Gaussian mirror and a thin phase screen which induces phase perturbations of the components of the electric field. The analytical form of the cross-spectral density matrix of the returned beam is determined, from which the effect of the rough target on the spectral density (intensity) and polarization of the returned wave is analyzed.