Investigations of Director Field Arrangement Induced in Tunable Liquid Crystalline Waveguide

• Authors: A. Walczak
• Languages of publication: EN

Abstracts

EN

Measurements of the refractive index profile have been made to provide data for obtaining local optical axis arrangement in the waveguide cross-section. Liquid crystalline planar waveguide tuned with the electric field has been used. A new approach is proposed to accomplish refractive index profile measurements in a direct way. The modal line method is presented as a tool that allows one to do it and to improve the attenuated total reflection disadvantages as well. The obtained results maintain applicability of the modal line method for a direct refractive index profile measurement. To verify the method, nematic 6CHBT (4-trans-4-n-hexyl-cyclohexyl- isothiocyanatobenzene) described earlier in the literature has been examined. A nematic mixture W602 contained 6CHBT as a main component has been examined too.

Keywords

EN

61.30.Gd

Discipline

• 61.30.Gd: Orientational order of liquid crystals; electric and magnetic field effects on order

• Journal: Acta Physica Polonica A
• Year: 1998
• Volume: 94
• Issue: 5-6
• Pages: 813-823

Dates

published

1998-11

received

1998-07-15

(unknown)

1998-10-20

Contributors

author

A. Walczak

• Institute of Applied Physics, Military University of Technology, Kaliskiego 2, 01-489 Warsaw, Poland

Identifiers

DOI

10.12693/APhysPolA.94.813