ABSTRACT

The information provided by the polarization state changes will probably be combined with the one obtained with the dynamic speckle in a more complex and interesting phenomenon. Single speckle patterns arising from biological tissues that were randomly polarized can be considered as the incoherent combination of two independent speckle patterns and the resulting contrast is diminished. There exist, although quite impractical in their current state, register media with polarization memory, such as those involving Weigert effect, which have been used to process static speckle patterns and holograms, showing that the storage of such patterns is in principle feasible. The use of polarization measures along with speckle information, such as polarized speckle size and the distribution of polarization singularities, have been recently proposed for medical applications, but dynamic properties have not received much attention. The use of this vortex in dynamic speckle has practically not been developed and unfolds interesting possibilities, particularly in the measurement of very slow phenomena.