Journal ArticleDOI
Pretransitional Phenomena in the Isotropic Phase of a Nematic Liquid Crystal
T. W. Stinson,J. D. Litster +1 more
TLDR
In this article, the authors have observed a divergence of the magnetic birefringence, and a critical increase and slowing of the fluctuations in order in the isotropic phase of a nematic liquid crystal.Abstract:
We have observed a divergence of the magnetic birefringence, and a critical increase and slowing of the fluctuations in order in the isotropic phase of a nematic liquid crystal. Our results are quantitatively described by a mean-field model except for a critical region close to the ordering temperature where the fluctuations are so large that the meanfield approximation fails.read more
Citations
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Reference EntryDOI
Diamagnetic Properties of Nematic Liquid Crystals
TL;DR: In this article, the authors proposed a model for detecting anisotropic anisotropy in the electromagnetic field using the magnetic field and SI units, and showed that the model is accurate.
Journal ArticleDOI
Measuring order in disordered systems and disorder in ordered systems: Random matrix theory for isotropic and nematic liquid crystals and its perspective on pseudo-nematic domains.
Yan Zhao,Richard M. Stratt +1 more
TL;DR: It is illustrated in this paper how pseudo-nematic domains can be studied in even relatively small computer simulations by looking for order-parameter tensor fluctuations much larger than one would expect from random matrix theory.
Journal ArticleDOI
Pressure Effects of Nematic Liquid Crystals
Liu Jiagang,Lin Lei +1 more
TL;DR: In this paper, the ordinary Landau-deGennes theory is generalized so that the free energy becomes G = G o(P, T) + a/2 [T - T*(P)]S 2 - B(P)/3 S 3 + C(P/4 S 4, T *(P) = T o + bP - eP 2.
Dissertation
Liquid crystal phase behaviour of colloidal platelets in external fields
TL;DR: In this paper, the effect of external magnetic fields on columnar liquid crystal phase behavior of colloidal platelets has been investigated using small-angle X-ray scattering (SAXS).
Journal ArticleDOI
Effects of self-induced ellipse rotation and self-focusing in a Q-switched laser cavity
Richard Hsu,Yuen-Ron Shen +1 more
TL;DR: An optical Kerr medium in a pulsed Laser cavity can appreciably affect the pulsed laser output via self-induced ellipse rotation and self-focusing via self -focusing and in good agreement with theoretical prediction.