title: Splayed polarization in the ferroelectric phase of a bent-core liquid crystal as studied by optical second-harmonic generation.
abstract: Splayed polarization orientation has been confirmed in the anticlinic ferroelectric phase of a bent-core liquid crystal containing chiral end chains, P-8 -OPIMB6(*), by optical second-harmonic generation (SHG). The in-plane anisotropy of the SHG signal exhibits an unusual six-peak pattern under the rotation of parallel polarizers in the absence of an electric field, while a usual four-peak pattern simulatable using a uniform molecular orientation model is observed under a field. The unusual pattern was explained by considering a splayed polarization orientation including the effect of polarization charges.
authors.affiliation: Department of Organic and Polymeric Materials, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan.
authors.forename: Fumito
authors.initials: F
authors.lastname: Araoka
authors.forename: Hajime
authors.initials: H
authors.lastname: Hoshi
authors.forename: Hideo
authors.initials: H
authors.lastname: Takezoe