Polarization Characteristics of a Partially Coherent Gaussian Schell-Model Beam in Slant Atmospheric Turbulence

Abstract

Abstract-On the basis of the extended Huygens-Fresnel principle, the cross-spectral density matrix (CSDM) of partially coherent Gaussian Schell-model (GSM) beams in the slant atmospheric turbulence is derived. Given that the light emitted from a transmitter is elliptically polarized light, the degree of polarization (DoP) of the partially coherent GSM beams is represented by Stokes parameters expressed by the elements of the CSDM. The expressions of the orientation angle, polarized light intensity in the major axis are derived and the numerical results are presented. Depolarization theory is studied using a Mueller matrix and the depolarization index (DI) is obtained to describe the depolarized state of the partially coherent GSM beams propagating in the slant atmospheric turbulence. Results show that the DOP and DI of the beam tend to their initial value in the long-range propagation.

Scattering of Gaussian Beam by a Spheroidal Particle

“…In M r (3) emn (c, ζ, η, φ) and N r (3) omn (c, ζ, η, φ), as cζ → ∞, there can be neglected terms of order higher than 1/r, then, from Eq. (20) the asymptotic forms of the scattered electric field E s can be obtained as [24] −E…”

“…The generalized Lorenz-Mie theory (GLMT) developed by Gouesbet et al is effective for describing the interaction of a shaped beam with a spherical particle by relying on the separability of variables [1][2][3], and has been extended by so many researchers to multilayered spheres [4,5], spheroids [6] and infinite cylinders [7][8][9]. Various applications of focused beam scattering include optimizing the rate at which morphology-dependent resonances (MDRs) are excited, laser trapping, particle manipulation, and the analysis of optical particle sizing instruments [10,11].…”

Outage Probability and Bit-Error Rate for Communication Systems With Gaussian-Schell Electromagnetism Beams in Non-Kolmogorov Raining Turbulence

“…In order to mitigate the effects of atmospheric turbulence on FSO system, there have been various attempts using the multiple-input multiple-output (MIMO) technique [1,16,17]. Many methods have been proposed to overcome the turbulence-induced degradation of laser beams [2,[18][19][20]. However, there are critical defects of the log-normal distribution.…”

Propagation of a Lorentz-Gauss Vortex Beam in a Turbulent Atmosphere

“…Focusing properties of the linearly polarized Lorentz-Gauss beam with one on-axis optical vortex has been investigated by means of the vector diffraction theory [25]. Due to the crucial applications in optical communications and remote sensing, the average intensity and the spreading properties of various kinds of laser beams including the Lorentz and the Lorentz-Gauss beams in the turbulent atmosphere have been extensively investigated [26][27][28][29][30][31][32][33][34][35]. However, to the best of our knowledge the propagation of a Lorentz-Gauss vortex beam in the turbulent atmosphere has not been reported.…”