Affiliation:
1. Gadjah Mada University
Abstract
Grid pattern (GP) was observed on planarly aligned nematic liquid crystal 4-methoxy-benziledene-4-n-buthyl-aniline (MBBA) when it applied by certain frequency and certain voltage which exceeds a threshold voltage, VGP. The GP appeared due to convective movement of MBBA molecules. Dimensions on GP were distinguished into length and width of GP rectangular shape. Width-area of GP is product of the length and the width. Dimensional analysis carried on image processing used ImageJ software. Observation on the pattern showed that the frequency affected GP dimensions, which were proportional to the GP length and inversely proportional to the GP width. Variation on frequency also showed that the frequency was inversely proportional to GP width-area that formed on image, but was proportional to sample thickness.
Publisher
Trans Tech Publications, Ltd.
Reference9 articles.
1. D. Demus, J.W. Goodby, G.W. Gray, H.W. Spiess, V. Vill, Handbook of Liquid Crystals, Wiley-VCH, Weinheim, (1998).
2. S. Chandrasekhar, Liquid Crystal, Clarendon Press, Oxford, (1992).
3. P.G. de Gennes, J. Prost, The physics of Liquid Crystal, Clarendon Press, Oxford, (1993).
4. M. Warner, E.M. Terentjev, Liquid Crystal Elastomers, Clarendon Press, Oxford, (2003).
5. N. Gheorghiu, I.I. Smalyukh, O.D. Lavrentovich, J.T. Gleeson, Three-dimensional Imaging of Dielectric Patterns in Electrohydrodynamics Convection of A Nematic Liquid Crystal, Physical Review E. 74 (2006) 041702-1-041702-8.
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