Experimental Studies On Red Shift Of Nematic Liquid Crystals

Shin-Tson Wu; Elena Ramos

doi:10.1117/12.976421

25 July 1989 Experimental Studies On Red Shift Of Nematic Liquid Crystals

Shin-Tson Wu, Elena Ramos

Proceedings Volume 1080, Liquid Crystal Chemistry, Physics, and Applications; (1989) https://doi.org/10.1117/12.976421
Event: OE/LASE '89, 1989, Los Angeles, CA, United States

Abstract

Ultraviolet (UV) absorption of some nematic liquid crystals (LCs) with different conjugation length was investigated under polar and nonpolar diluted solutions, vapor phase, nematic phase, and isotropic phase. Results of the vapor phase and nonpolar solution are very similar. For nonpolar LC molecules, little red shift is observed. For polar molecules, the icelectron resonant wavelength exhibits a significant red shift in the nematic phase when compared with the results measured in solvents or vapor phase. Short range intermolecular interaction is thought to be responsible for the observed red shift.

Citation Download Citation

Shin-Tson Wu and Elena Ramos "Experimental Studies On Red Shift Of Nematic Liquid Crystals", Proc. SPIE 1080, Liquid Crystal Chemistry, Physics, and Applications, (25 July 1989); https://doi.org/10.1117/12.976421

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