Dynamics of the optical Freedericksz transition

F. Marquis, Pierre Meystre, Ewan M Wright, A. E. Kaplan

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We investigate theoretically dynamical aspects of the optical Freedericksz transition in nematic liquid crystals. Specifically, we analyze (1) the existence and stability of a sequence of higher-order longitudinal modes past the Freedericksz transition, (2) effects due to transverse correlations of the molecular orientation, and (3) the effects of thermal noise on the stability of the spatial modes. Higher-order longitudinal modes are studied both in the weak-anisotropy limit, in which case the problem reduces at steady state to a sine-Gordon equation, and in the general case, using a combination of analytical and numerical methods. They can be excited by the influence of internal fluctuations. Transverse correlations are shown to lead to the existence of transverse inhomogeneities (kinks) of the direct-angle distribution that can appear even under plane-wave illumination.

Original languageEnglish (US)
Pages (from-to)875-887
Number of pages13
JournalPhysical Review A
Volume36
Issue number2
DOIs
StatePublished - 1987

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optical transition
thermal noise
inhomogeneity
plane waves
illumination
liquid crystals
anisotropy

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Atomic and Molecular Physics, and Optics

Cite this

Dynamics of the optical Freedericksz transition. / Marquis, F.; Meystre, Pierre; Wright, Ewan M; Kaplan, A. E.

In: Physical Review A, Vol. 36, No. 2, 1987, p. 875-887.

Research output: Contribution to journalArticle

Marquis, F. ; Meystre, Pierre ; Wright, Ewan M ; Kaplan, A. E. / Dynamics of the optical Freedericksz transition. In: Physical Review A. 1987 ; Vol. 36, No. 2. pp. 875-887.
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