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'cholesteric mesophase' in keywords Facet   section ZfN Section A:Volume 050  [X]
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1995 (1)
1Author    Ingo Dierking, Frank Gießelmann, Peter ZugenmaierRequires cookie*
 Title     
 Abstract    n O p tic a l M e th o d f o r th e D e te r m in a tio n o f th e C h o le s te r ic P itc h in L iq u id C r y s ta ls Preparation of a cholesteric liquid crystalline phase in planar orienting liquid crystal cells exhibits discontinuous colour changes with temperature when viewed between crossed polarizers. The trans­ mission spectra of such a system can be described by a modified de Vries equation, with the bire­ fringence dispersion included in a simplified single-band model. With a suitable choice of the cell gap as compared to the cholesteric pitch, the procedure can be used as a new method to determine the temperature dependence of the cholesteric pitch. 
  Reference    Z. Naturforsch. 50a, 589—594 (1995); received December 17 1994 
  Published    1995 
  Keywords    Liquid crystal, cholesteric mesophase, pitch determination, birefringence dispersion, twist inversion 
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 TEI-XML for    default:Reihe_A/50/ZNA-1995-50a-0589.pdf 
 Identifier    ZNA-1995-50a-0589 
 Volume    50