Raman Scattering and Defects in Liquid Crystals Exhibiting Ferrielectric Phases

1995 ◽  
Vol 5 (12) ◽  
pp. 1793-1803 ◽  
Author(s):  
R. Farhi ◽  
M. Sidir ◽  
H. T. Nguyen
Keyword(s):  
Liquid Crystals ◽  
Raman Scattering ◽  
Defects In Liquid Crystals

Studies Of Orientational Order Of Some Nematogens By Means Of Raman Scattering Spectroscopy

2004 ◽  
Vol 59 (7-8) ◽  
pp. 510-516 ◽  
Author(s):  
Ewa Chrzumnicka ◽  
Mirosław Szybowicz ◽  
Danuta Bauman
Keyword(s):  
Liquid Crystals ◽  
Raman Scattering ◽  
Orientational Order ◽  
Polarized Light ◽  
Molecular Structures ◽  
Raman Scattering Spectroscopy ◽  
Linearly Polarized ◽  
Scattering Spectra ◽  
Raman Scattering Spectra ◽  
Molecular Distribution Function

The orientational behaviour of some liquid crystals with various molecular structures was studied by means of the Raman scattering depolarization method. The Raman scattering spectra of linearly polarized light were recorded as a function of temperature in the nematic phase. On the basis of these spectra the order parameters 〈P2〉 and 〈P4〉 as well as the molecular distribution function were determined. The obtained data were compared with those estimated on the basis of polarized light absorption and emission measurements. The influence of the molecular structure on the orientational order of liquid crystals was discussed.

Raman Scattering in Nematic and Smectic Liquid Crystals

1974 ◽  
Vol 13 (11) ◽  
pp. 1691-1698 ◽  
Author(s):  
Akihiko Sakamoto ◽  
Katsumi Yoshino ◽  
Uichi Kubo ◽  
Yoshio Inuishi
Keyword(s):  
Liquid Crystals ◽  
Raman Scattering ◽  
Smectic Liquid Crystals
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