%0 Journal Article
%T Detection of Vortex Sign for Scalar Speckle Fields
%A Mokhun I.
%A Galushko Yu.
%J Ukrainian Journal of Physical Optics
%D 2008
%I Institute of Physical Optics
%X A technique is described for determining vortex sign in the scalar optical fields (including statistical ones) under conditions when it is impossible to use a regular reference beam. The elaborated approach is based on the shift-interferometry technique. The optimal conditions for identifying the vortices are formulated. The results of computer simulations and the corresponding experimental confirmation of our theoretical findings are presented.
%K vortex
%K shift-interferometry
%K interference forklets
%K topological charge
%U http://www.ifo.lviv.ua/journal/2008/2008_4_9_05.html