title: Polarization reflection holographic gratings in azobenzene-containing gelatine films.
abstract: We have written polarization reflection holograms in an azobenzene-containing material. Two waves with circular polarization were used to record the gratings; the light resulting from their overlap induces chirality in the samples. The holographic reflection of the polarization gratings has the properties of Bragg reflection in cholesteric liquid crystals.
authors.forename: Ludmila
authors.initials: L
authors.lastname: Nikolova
authors.forename: Todor
authors.initials: T
authors.lastname: Todorov
authors.forename: Violeta
authors.initials: V
authors.lastname: Dragostinova
authors.forename: Tzveta
authors.initials: T
authors.lastname: Petrova
authors.forename: Natalia
authors.initials: N
authors.lastname: Tomova