title: Development of a new kind of switchable holographic grating made of liquid-crystal films separated by slices of polymeric material.
abstract: We present a new kind of UV-cured holographic grating that consists of polymer slices alternated with pure nematic films. By preventing the appearance of the nematic phase during the curing process, it is possible to avoid the formation of liquid-crystal droplets and obtain a sharp and uniform morphology, which reduces scattering losses and increases diffraction efficiency.
authors.affiliation: Liquid Crystal Laboratory, Istituto Nazionale per la Fisica della Materia, Unità di Ricerca di Cosenza and Dipartimento di Fisica, Università della Calabria, 87036 Arcavacata di Rende (CS), Italy.
authors.forename: Roberto
authors.initials: R
authors.lastname: Caputo
authors.forename: Luciano
authors.initials: L
authors.lastname: De Sio
authors.forename: Alessandro
authors.initials: A
authors.lastname: Veltri
authors.forename: Cesare
authors.initials: C
authors.lastname: Umeton
authors.forename: Andrey V
authors.initials: AV
authors.lastname: Sukhov