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Experimental Results and Problems Concerning “Blue Phases”

  • Conference paper
Liquid Crystals of One- and Two-Dimensional Order

Part of the book series: Springer Series in Chemical Physics ((CHEMICAL,volume 11))

Abstract

Most of the cholesteric mesophases formed by esters of cholesterol exhibit selective reflection of circularly polarized light in the u. v. region at temperatures close below the clearing point /1/. The well known reflection colours in the visible either occur near phase transitions to the smectic phase or in so-called compensated mixtures /1/. However, cooling down cholesteric esters only a few tenths of a Kelvin below the clearing point bright colours appear (mostly blue colours) which disappear on further cooling /2/. As early as in 1906 Lehmann /3/ noted that these colours belong to an optically isotropic modification. In his opinion this modification represents a stable phase distinct from that of the ordinary cholesteric one.

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Author information

Authors and Affiliations

  1. Department of Physical Chemistry, University of Paderborn, 4790, Paderborn, Federal Republic of Germany

    H. Stegemeyer & K. Bergmann

Authors
  1. H. Stegemeyer
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  2. K. Bergmann
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Editor information

W. Helfrich G. Heppke

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© 1980 Springer-Verlag Berlin Heidelberg

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Stegemeyer, H., Bergmann, K. (1980). Experimental Results and Problems Concerning “Blue Phases”. 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_38

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  • DOI: https://doi.org/10.1007/978-3-642-67848-6_38

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-67850-9

  • Online ISBN: 978-3-642-67848-6

  • eBook Packages: Springer Book Archive

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