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Proceedings Paper

Orientational order in nematic phases determined from polarized optical spectroscopy
Author(s): Danuta Bauman
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Paper Abstract

The orientational order of some nematogenic low molecular liquid crystals and three polymers with mesogenic side groups has been studied using 'guest-host' effect. The polarized absorption and fluorescence spectra of the fluorescent guest probe oriented in the liquid crystalline matrices have been measured as a function of the temperature in the nematic phase. From the experimental data, the order parameters <P2> and <P4> as well as the molecular distribution function have been determined. The small differences between the molecular orientation in the low molecular liquid crystals and the side chain polymers have been observed. It has been also found that the orientational order depends strongly on the molecular structure of the mesogenic molecules.

Paper Details

Date Published: 2 August 1995
PDF: 8 pages
Proc. SPIE 2372, Liquid Crystals: Materials Science and Applications, (2 August 1995); doi: 10.1117/12.215529
Show Author Affiliations
Danuta Bauman, Poznan Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 2372:
Liquid Crystals: Materials Science and Applications
Jozef Zmija, Editor(s)

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