Inverse Raman study of liquid crystals

A. Grofcsik, M. Kubinyi, W. Jeremy Jones, R. Allott, J. Baran

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Picosecond inverse Raman spectroscopy has been used for studying the Raman spectra, alignment behaviour, and switching characteristics of the nematic liquid crystal 4-pentyl-4'-cyanobiphenyl (5CB) and a ferroelectric liquid crystal based on a host mixture of fluorinated phenyl biphenylcarboxylates and a chiral dopant. The orientational ordering of the liquid crystal (LC) molecules has been altered by electric fields applied across the samples. The change of orientation has been monitored by detecting the inverse Raman signal arising from a selected Raman transition. For the nematic liquid crystal, the measured reorientational time constants are in the range 10-150 ms, whereas those for the ferroelectric liquid crystal samples are below 1 ms.

Original languageEnglish
Pages (from-to)513-516
Number of pages4
JournalJournal of Molecular Structure
Volume408-409
DOIs
Publication statusPublished - Jun 1 1997

Fingerprint

Liquid Crystals
Nematic liquid crystals
liquid crystals
Ferroelectric materials
Raman spectroscopy
Raman scattering
Electric fields
Doping (additives)
Raman Spectrum Analysis
Molecules
time constant
alignment
Raman spectra
electric fields
molecules

Keywords

  • Ferroelectric liquid crystals
  • Inverse Raman spectroscopy
  • Nematic liquid crystals
  • Picosecond lasers

ASJC Scopus subject areas

  • Structural Biology
  • Organic Chemistry
  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics

Cite this

Inverse Raman study of liquid crystals. / Grofcsik, A.; Kubinyi, M.; Jones, W. Jeremy; Allott, R.; Baran, J.

In: Journal of Molecular Structure, Vol. 408-409, 01.06.1997, p. 513-516.

Research output: Contribution to journalArticle

Grofcsik, A. ; Kubinyi, M. ; Jones, W. Jeremy ; Allott, R. ; Baran, J. / Inverse Raman study of liquid crystals. In: Journal of Molecular Structure. 1997 ; Vol. 408-409. pp. 513-516.
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