Synthesis and Characterisation of Liquid Crystalline Polymers for Nonlinear Optical Applications

1991 ◽  
Vol 200 (1) ◽  
pp. 157-165 ◽  
Author(s):  
I. A. McCulloch ◽  
R. T. Bailey
Keyword(s):  
Liquid Crystalline ◽  
Nonlinear Optical ◽  
Liquid Crystalline Polymers ◽  
Crystalline Polymers ◽  
Optical Applications ◽  
Nonlinear Optical Applications

A comparative study of side chain liquid crystalline polymers and their monomers designed for nonlinear optical applications

1991 ◽  
Vol 6 (3) ◽  
pp. 604-609 ◽  
Author(s):  
R.B. Findlay ◽  
T.J. Lemmon ◽  
A.H. Windle
Keyword(s):  
Transition Temperature ◽  
Liquid Crystalline ◽  
Nonlinear Optical ◽  
Liquid Crystalline Polymers ◽  
Significant Degree ◽  
Side Chain ◽  
Crystalline Polymers ◽  
Chemical Structures ◽  
Optical Applications ◽  
Nonlinear Optical Applications

Characterizations of side chain liquid crystalline polymers and their monomers point toward chemical structures and processing techniques which optimize their suitability for nonlinear optical applications. Polymers with methacrylate backbones and nitrostilbene or nitrobiphenyl side groups are studied; they tend to form smectic phases, but no solid crystallinity. By copolymerizing with nonmesogenic backbone units, the smectic-isotropic transition temperature can be controlled and may fall below the glass transition temperature. There is evidence for a significant degree of pretransitional alignment due to the surface fields, and mesogen ordering perpendicular to flow-induced backbone alignment. Very rapid cooling can suppress the highly scattering polydomain smectic phase.

Time-dependent nonlinear optical properties of pyroelectric liquid crystalline polymers

1999 ◽  
Vol 148 (1) ◽  
pp. 179-195 ◽  
Author(s):  
Jonas Örtegren ◽  
Philippe Busson ◽  
Ulf W. Gedde ◽  
Anders Hult ◽  
Anders Eriksson ◽  
...  
Keyword(s):  
Optical Properties ◽  
Liquid Crystalline ◽  
Nonlinear Optical ◽  
Liquid Crystalline Polymers ◽  
Nonlinear Optical Properties ◽  
Time Dependent ◽  
Crystalline Polymers
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