Influence of Light Polarization on Reorientation Nonlinearity in Nematic Liquid Crystals

• Authors: K. Brzdąkiewicz , M. Karpierz
• Languages of publication: EN

Abstracts

EN

Nematic liquid crystals are characterized by a giant optical nonlinearity which has its origin in the molecular reorientational phenomenon. Uniqueness of this nonlinear mechanism causes that response of the medium is dependent on many conditions. Among various circumstances, both an initial alignment of liquid crystal cell and geometry of the system are very important, but in this paper a significant role of light polarization in nonlinear effects observed in nematics is emphasized. Additionally, it is underlined that dependence on light polarization does not have only trivial aspect of initial conditions. More complex seems to be the fact that due to the high optical anisotropy of the medium the state of light polarization is changing on the way of beam propagation. As a consequence, the modifications of molecular orientation in the liquid crystal cell are strongly dependent upon light polarization.

Keywords

EN

42.65.-k; 42.70.Df

Discipline

• 42.65.-k: Nonlinear optics
• 42.70.Df: Liquid crystals(for structure of liquid crystals, see 61.30.-v)

• Journal: Acta Physica Polonica A
• Year: 2003
• Volume: 103
• Issue: 2-3
• Pages: 195-205

Dates

published

2003-02/03

received

2002-09-05

Contributors

author

K. Brzdąkiewicz

• Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland

author

M. Karpierz

• Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland

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Identifiers

DOI

10.12693/APhysPolA.103.195