Document Type
Article
Publication Date
3-28-1994
Abstract
A negative dielectric anisotropy cholesteric liquid crystal, oriented homeotropically in a wedged capacitance cell, was subjected to an applied electric field. The Freedericksz transition threshold voltage was found to depend on the local thickness of the sample, and was found to vanish at a thickness of order 3/2 P, where P is the pitch of the cholesteric in the bulk. The results are consistent with a continuum elastic theory. A discussion of the technological ramifications is presented.
Publication Title
Applied Physics Letters
Rights
Copyright 1994 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters 64:13, 1741-1743 and may be found at http://link.aip.org/link/doi/10.1063/1.111796
Recommended Citation
Karl A. Crandall, Michael R. Fisch, Rolfe G. Petschek, Charles Rosenblatt; Vanishing Freedericksz transition threshold voltage in a chiral nematic liquid crystal. Appl. Phys. Lett. 28 March 1994; 64 (13): 1741–1743. https://doi.org/10.1063/1.111796