EFFECTS IN NEMATIC CELLS WITH BROKEN CENTROSYMMETRY

Authors
KLOUDA R NAZARENKO VG KOSA T HSIA KM LAVRENTOVICH OD PALFFYMUHORAY P
Citation
R. Klouda et al., EFFECTS IN NEMATIC CELLS WITH BROKEN CENTROSYMMETRY, Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 304, 1997, pp. 133-138
Citations number
15
Categorie Soggetti
Crystallography
Journal title
Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals → ACNP
ISSN journal
1058725X
Volume
304
Year of publication
1997
Pages
133 - 138
Database
ISI
SICI code
1058-725X(1997)304:<133:EINCWB>2.0.ZU;2-B
Abstract
Unipolar electro-optic and nonlinear optical effects are observed in a nematic liquid crystal cell with broken inversion symmetry. The cell is bounded by two plates which produce electric surface polarizations normal to the plates. When the two surfaces are different a unipolar e lectrooptic effect is observed: the electric field-induced director di stortions occur only for one polarity of the field and not for the opp osite polarity (''optical diode'' effect). Another manifestation of th e symmetry breaking is strong second harmonic generation by the cell.