Liquid crystals under compression and tension

Manjuladevi, V. ; Madhusudana, N. V. (2004) Liquid crystals under compression and tension Proceedings of SPIE, 5565 . pp. 141-151. ISSN 0277-786X

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We report measurements of the temperature dependences of the birefringence of a number of nematogens under high pressures. In a compound whose molecules have large longitudinal dipole moments, we detect a nematic to nematic transition when the order parameter is sufficiently high. We also describe a technique of subjecting aligned liquid crystal droplets to large negative pressures and measuring the temperature dependence of birefringence under isochoric conditions. The temperature range of the partial bilayer smectic Ad phase gets shrunk at elevated pressures but gets enlarged under tension.

Item Type:Article
Source:Copyright of this article belongs to The International Society for Optical Engineering.
ID Code:76078
Deposited On:29 Dec 2011 07:39
Last Modified:29 Dec 2011 07:39

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