Theoretical And Experimental Studies On Inhomogeneous Correlated Partially Coherent Beams

Optical coherence is one of essential properties of light,and has far-reaching influence on light application for many domains.Starting in the 1950 s,following the basic research of Wolf et al,and after many other workers' effort,optical coherence theory has been gradually perfect,and it is widely used in the fields of free space communication,remote detection and optical scattering.Optical second-order coherence can be divided into Schell-Model correlation with its coherence having space varying unchanged structure and non-uniform correlation with its coherence having space varying changed structure.In recent decades,there are many works in theory and experiment for studying Schell-Model partially coherent light beams.But for nonuniformly correlated beams,since Gori has presented it in 2007,after 2011 it started has some works in theory and experiment.At present there fewer works on non-uniformly correlated beams and although it has been generated in experiment,but it is not proper for realistic application.Therefore,on the basis of previous work,this paper further studies the characteristics of the non-uniformly correlated partially coherent beam,and finds that the threedimensional intensity distribution of the beam in the transmission process can be realized by adjusting the correlated structure of the partially coherent beam on the initial plane.In view of the defects of existing experimental schemes for generating partially coherent beams,a new experimental method for synthesizing partially coherent beams is proposed to improve the practicability of partially coherent beams.