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Article Abstract
A detailed study is conducted on the polarization characteristics of full Poincaré beams (FPBs) propagating through atmospheric turbulence, including polarization state, degree of polarization, OAM-resolved Stokes parameters, and OAM-resolved degree of polarization. Analytical solutions for the cross-spectral density matrix and its corresponding coherence-orbital angular momentum (COAM) matrix are formulated. We show that the polarization distribution of the propagating FPBs in turbulence, at any transversal plane, still remains a stereographic projection of the Poincaré sphere but rotates with respect to its propagation axis. The rotation angle, however, is independent of the turbulence. Further, we reveal the selection rule for governing the correlations of any two OAM modes which contain the turbulence-disturbed FPBs through OAM mode analysis. Based on the selection rule, we show that the OAM-resolved Stokes parameters and OAM-resolved degree of polarization exhibit diverse evolution behavior in the turbulence.
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| http://dx.doi.org/10.1364/OE.555090 | DOI Listing |
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