2021/11/16 by Abhijit Roy, Roy, Abhijit
Engineering · Neuroscience · #Optical Polarization and Ellipsometry #Optical Coherence Tomography Applications #Visual perception and processing mechanisms
paper · pdf · doi:10.48550/arxiv.2111.08396
A generalized theory of spatial coherence for superposition of two speckle\npatterns with polarization diversity is presented. The presented theory deals\nwith superposition in different scenarios i.e. superposition of two fully\ncorrelated, partially correlated and completely uncorrelated speckle patterns,\nand describes the effect on the spatial coherence-polarization (CP) property of\nthe superposed random field from the study of the spatial degree of coherence\nand degree of polarization. The change in the spatial CP property with the\npolarization diversity is studied for different correlation factors of the\nconstituent random fields, and a modulation of the spatial CP property is\nobserved, when the constituent speckle patterns are not fully correlated. The\neffect of the average intensity ratio of the two random fields on the spatial\nCP property is also studied. Thus, this theoretical study completes the case of\nsuperposition of two speckle patterns with polarization diversity and its\neffect on the spatial CP property.\n