title: Disorientated optical polarization devices.
abstract: By using a pure operatorial (nonmatrix) approach to some of the variable composite polarization devices, we show that for some values of the variable internal parameters, these devices lose their anisotropy. Their principal axes, or more generally their eigenvectors, become undetermined, i.e., in this sense, the anisotropic devices get "disorientated."
authors.affiliation: Faculty of Physics, University of Bucharest, P.O. Box MG-11, 0771253, Bucharest, Măgurele, Romania. ttudor@nipne.ro
authors.forename: Tiberiu
authors.initials: T
authors.lastname: Tudor