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光子学报  2004 

Propagation Characteristics of Anisotropic Incoherent Vector Beams
各向异性的非相干矢量光束的传播特性

Keywords: Anisotropic incoherence,Vector beams,Poynting vect or
各向异性的非相干性
,矢量光束,坡印亭矢量

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Abstract:

The propagation characteristics of anisotropic incoherent electromagnetic vector beams in free space are investigated by using Poynting vector method. The energy distribution in the beam cross-section is analyzed, and the condition under which the energy peak happens to be on the center of the azimuthally polarized beams is obtained. Also the influence of incoherence on dipolar beams is studied. There are two sidelobes beside the energy peak of beams, whose location move in the propagation. And the movements of the sidelobes are different to different incoherence. Finially,It is found that there are three different types of evolution of the beam profile during the propagation.

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