Characterization of Photon Statistical Properties with Normalized Mandel Parameter
 
             
            
                    
                                        
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Abstract
    Normalized Mandel Parameter  is introduced as a new measurement of photon statistics. Dependences of Mandel parameter Q and corresponding normalized Mandel parameter  on photon-counting time interval are experimentally investigated for pseudo-thermal light. We demonstrate that  is more appropriate than Q to measure the statistical deviation from Poisson distribution, because  presents clearly both the intrinsic statistical properties and measuring effects. The advantages of  in charactering nonclassical emissions are also discussed.
 
 
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