title: Optically controlled transmission of porous polyethylene terephthalate films filled with nematic liquid crystal.
abstract: We investigated the influence of blue light (lambda=450 nm) on the optical properties of porous polyethylene terephthalate (PET) films filled with a nematic liquid crystal (E7). In experiments, films of 12 microm thickness with randomly distributed open-end pores of well-defined diameters (170, 400, 850 nm) were studied. It was found that blue-light illumination of the porous PET films preliminarily treated by an azo dye solution resulted in strong intensity changes when the He-Ne laser beam passed through the sample. The observed effect can be attributed to the heating caused by the absorption of blue light by azo dye molecules.
authors.affiliation: Problem Laboratory of Molecular Acoustics, Moscow State University of Instrument Engineering and Computer Science, 107996, Moscow, Stromynka 20, Russia. infavorem@mail.ru
authors.forename: Denis
authors.initials: D
authors.lastname: Semerenko
authors.forename: Dina
authors.initials: D
authors.lastname: Shmeliova
authors.forename: Sergey
authors.initials: S
authors.lastname: Pasechnik
authors.forename: Anatolii
authors.initials: A
authors.lastname: Murauskii
authors.forename: Valentin
authors.initials: V
authors.lastname: Tsvetkov
authors.forename: Vladimir
authors.initials: V
authors.lastname: Chigrinov