Abstract
According to first-order Born approximation, the scattering of a partially coherent pulse with cosine-Gaussian correlation by a medium was studied. On the basis of analytic expression, the changes in intensity evolution of the scattered pulse are discussed. The influences of pulse and medium characteristics on the intensity of the scattered pulse were investigated. The intensities of a Gaussian Schell-model (GSM) pulse and a cosine-Gaussian-correlated Schell-model (CGSM) pulse, both scattered by the same medium, are compared, and their similarities and differences are examined in detail. The effective angular width of the scattered pulse could be modulated by the parameters of the pulse and medium. The obtained results could find potential applications in pulsed beam scattering.
Highlights
Light scattering has received continuous attention from researchers because of its potential applications in some areas, like medical detection and ocean remote sensing
The optical pulse is an important part of a broad class of light beams [7]
We studied the scattering of a cosine-Gaussian-correlated Schell-model (CGSM) pulse on a quasihomogeneous medium, and investigated the intensity evolution of the scattered pulse within the accuracy of first-order Born approximation
Summary
Light scattering has received continuous attention from researchers because of its potential applications in some areas, like medical detection and ocean remote sensing. Since pioneering research in 1870, many studies have been carried out in this field, where the optical statistical characteristics of a scattered pulse, such as intensity, polarization, and coherence, were extensively studied [1,2,3,4]. We studied the scattering of a cosine-Gaussian-correlated Schell-model (CGSM) pulse on a quasihomogeneous medium, and investigated the intensity evolution of the scattered pulse within the accuracy of first-order Born approximation. We pay more attention to examining the intensity variation of the scattered pulse with order-parameter n, duration, the temporal-coherence length of the initial pulse, and the radius and correlation length of the medium
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