title: High-contrast photoswitching of nonlinear optical response in crosslinked ferroelectric liquid-crystalline polymers.
abstract: A conceptually novel materials design, based on crosslinked ferroelectric liquid-crystalline polymers, is demonstrated for efficient switching of a second-order nonlinear optical (NLO) response in the solid state. By controlling the molecular alignment of the NLO moieties through two-photon isomerization of azobenzene molecules, reversible isothermal photocontrol of second-harmonic generation is achieved with contrast of up to 20.
authors.affiliation: Chemical Resources Laboratory, Tokyo Institute of Technology, R1-12, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.
authors.forename: Arri
authors.initials: A
authors.lastname: Priimagi
authors.forename: Keiji
authors.initials: K
authors.lastname: Ogawa
authors.forename: Matti
authors.initials: M
authors.lastname: Virkki
authors.forename: Jun-Ichi
authors.initials: J
authors.lastname: Mamiya
authors.forename: Martti
authors.initials: M
authors.lastname: Kauranen
authors.forename: Atsushi
authors.initials: A
authors.lastname: Shishido
mesh_terms: D015394:Molecular Structure; D055620:Optical Phenomena; D055668:Photochemical Processes; D011108:Polymers / Q000138:chemical synthesis / Q000737:chemistry*
chemical_list: D011108:Polymers; C422409:liquid crystal polymer