supported by the National Natural Science Foundation of China(Nos.31000387,61177006,and 61307010);China Postdoctoral Research Foundation(No.2013M540828);Beijing Postdoctoral Research Foundation(No.2013ZZ-17)
A phase retrieval method for dual-wavelength in-line digital holography is presented with double axially displaced holograms.A synthetic wavelength is used during iterative propagations to retrieve wrap-free phase dis...