45 citations · 45 across the 5 of their papers we have counts for
5 papers
Mixed equilibrium/nonequilibrium effects govern surface mobility in polymer glasses
Jianquan Xu, Asieh Ghanekarade, Li Li +6
The temperature at which supercooled liquids turn into solid-like glasses () can change at the free surface, affecting the properties of nanostructured glasses and their appli…
Spinodal Surface Fluctuations on Polymer Films
Y. J. Wang, Ophelia K. C. Tsui
We study the temporal growth pattern of surface fluctuations on a series of spinodally unstable polymer films where the degree of instability is controlled by the film thickness. F…
Liquid crystal pretilt control by inhomogeneous surfaces
Jones T. K. Wan, Ophelia K. C. Tsui, Hoi-Sing Kwok +1
We consider the pretilt alignment of nematic liquid crystal (LC) on inhomogeneous surface patterns comprising patches of homeotropic or homogeneous alignment domains, with azimutha…
Critical Thickness in Dewetting Films
B. Du, Z. Yang, O. K. C. Tsui
We study dewetting of thin polymer films with built-in topographical fluctuations produced by rubbing the film surface with a rayon cloth. By varying the density of imposed surface…
Statistical Analysis of X-ray Speckle at the NSLS
Ophelia K. C. Tsui, S. G. J. Mochrie, L. E. Berman
We report a statistical analysis of the static speckle produced by illuminating a disordered aerogel sample by a nominally coherent x-ray beam at wiggler beamline X25 at the Nation…