title: Magnetic-field tunable defect modes in a photonic-crystal/liquid-crystal cell.
abstract: Light transmission spectrum of a multilayer photonic crystal with a central liquid-crystal defect layer placed between crossed polarizers has been studied. Transmittance was varied due to the magnetically induced reorientation of the nematic director from homeotropic to planar alignment. Two notable effects were observed for this scheme: the spectral shift of defect modes corresponding to the extraordinary light wave and its superposition with the ordinary one. As a result, the optical cell allows controlling the intensity of interfering defect modes by applied magnetic field.
authors.affiliation: Kirensky Institute of Physics, Krasnoyarsk Scientific Center, SB RAS, Krasnoyarsk, Russia. zyr@iph.krasn.ru
authors.forename: Victor Ya
authors.initials: VY
authors.lastname: Zyryanov
authors.forename: Sergey A
authors.initials: SA
authors.lastname: Myslivets
authors.forename: Vladimir A
authors.initials: VA
authors.lastname: Gunyakov
authors.forename: Alexander M
authors.initials: AM
authors.lastname: Parshin
authors.forename: Vasily G
authors.initials: VG
authors.lastname: Arkhipkin
authors.forename: Vasily F
authors.initials: VF
authors.lastname: Shabanov
authors.forename: Wei
authors.initials: W
authors.lastname: Lee
mesh_terms: D016477:Artifacts; D004574:Electromagnetic Fields; D050866:Liquid Crystals / Q000737:chemistry* / Q000528:radiation effects*; D008420:Manufactured Materials / Q000528:radiation effects*; D008422:Materials Testing; D012031:Refractometry