title: Polarization converters based on axially symmetric twisted nematic liquid crystal.
abstract: An axially symmetric twisted nematic liquid crystal (ASTNLC) device, based on axially symmetric photoalignment, was demonstrated. Such an ASTNLC device can convert axial (azimuthal) to azimuthal (axial) polarization. The optical properties of the ASTNLC device are analyzed and found to agree with simulation results. The ASTNLC device with a specific device can be adopted as an arbitrary axial symmetric polarization converter or waveplate for axially, azimuthally or vertically polarized light. A design for converting linear polarized light to axially symmetric circular polarized light is also demonstrated.
authors.affiliation: Institute of Electro-optical Science and Engineering, National Cheng Kung University, Tainan, Taiwan 701, China.
authors.forename: Shih-Wei
authors.initials: SW
authors.lastname: Ko
authors.forename: Chi-Lun
authors.initials: CL
authors.lastname: Ting
authors.forename: Andy Y-G
authors.initials: AY
authors.lastname: Fuh
authors.forename: Tsung-Hsien
authors.initials: TH
authors.lastname: Lin
mesh_terms: D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D050866:Liquid Crystals / Q000737:chemistry*; D008956:Models, Chemical; D012031:Refractometry / Q000295:instrumentation*