Abstract
The high rotatory power of cholesteric liquid crystals (CLC) can be interesting for practical applications when a suitable switching of it is available. It is well known that electric field induces deformations on the CLC structure [1] then we expect variations of the rotatory power versus the applied electric field. The structure deformations modify the apparent pitch of CLC then shift the selective reflection band; the relation between reflection band and rotatory dispersion has been discussed by S. Chandrasekhar [2] whose results will be recalled later.
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References
For a general review see P.G.de Germes “The physics of the Liquid Crystals” Oxford University Press 1973, and references therein.
S. Chandrasekhar, K.N.Srinivasa Rao Acta Cryst.A24, 445 (1968)
R.B. Meyer Appl.Phys.Lett.12, 281 (1968)
W. Helfrich Appl.Phys.Lett.17, 531 (1970)
W. Helfrich Jour.Chem.Ph.55, 839 (1971)
J.P. Hurault Jour.Chem.Ph. 59, 2068 (1973)
F. Rondelez Thesis, Univ.Paris IX (1973)
P.E. Sokol, J.T.Ho Appl.Phys.Lett.31, 487 (1977)
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© 1980 Springer-Verlag Berlin Heidelberg
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Simoni, F., Bartolino, R., Scaramuzza, N. (1980). Optical Properties of Cholesteric Liquid Crystals Under a DC Electric Field. In: Helfrich, W., Heppke, G. (eds) Liquid Crystals of One- and Two-Dimensional Order. Springer Series in Chemical Physics, vol 11. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-67848-6_42
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DOI: https://doi.org/10.1007/978-3-642-67848-6_42
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