Design and synthesis of ferroelectric liquid crystals

1992 ◽  
Author(s):  
Wen-Yung Tsai ◽  
Hwei-Long Kuo ◽  
Shu-Hui Yang ◽  
Chein-Dhau Lee ◽  
Shih-Yiing Sheu
Keyword(s):  
Liquid Crystals ◽  
Ferroelectric Liquid Crystals ◽  
Design And Synthesis

Design and synthesis of ferroelectric liquid crystals. 24. Incorporation of the disperse red 1 chromophqre into side-by-side dimers for nonlinear optics

1995 ◽  
Vol 413 ◽  
Author(s):  
Daniel J. Dyer ◽  
Renfan Shao ◽  
Noel A. Clark ◽  
David M. Walba
Keyword(s):  
Liquid Crystals ◽  
Integrated Circuits ◽  
Supermolecular Structure ◽  
Polar Axis ◽  
Nonlinear Susceptibility ◽  
Ferroelectric Liquid Crystals ◽  
Structural Class ◽  
Polar Order ◽  
Design And Synthesis ◽  
Smectic C

ABSTRACTWith excellent processibility on silicon integrated circuits and thermodynamically stable polar order, ferroelectric liquid crystals (FLCs) show great potential as components of fast integrated electro-optic modulators. In order to realize this potential, however, an increase in the magnitude of the electronic secona order nonlinear susceptibility χ(2) is required. This has been problematical since functional arrays with large molecular second order susceptibility β orient with improper supermolecular stereocontrol (i.e. with the charge transfer axis normal to the polar axis) when incorporated into traditional FLC structures. Herein we present examples of a new LC structural class designed to achieve the proper supermolecular structure for large χ(2) in FLCs. The observed sign and magnitude of the ferroelectric polarization of the new mesogens extrapolated from smectic C* mixtures is fully consistent with the desired supermolecular structure.

Design and synthesis of ferroelectric liquid crystals. 15.1FLC materials for nonlinear optics applications

1991 ◽  
Vol 121 (1) ◽  
pp. 247-257 ◽  
Author(s):  
David M. Walba ◽  
M. Blanca Ros ◽  
Teresa Sierra ◽  
James A. Rego ◽  
Noel A. Clark ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Nonlinear Optics ◽  
Ferroelectric Liquid Crystals ◽  
Design And Synthesis

Design and synthesis of ferroelectric liquid crystals. 22. side-by-side dimers for nonlinear optics

1996 ◽  
Vol 179 (1) ◽  
pp. 211-220 ◽  
Author(s):  
David M. Walba ◽  
Daniel J. Dyer ◽  
Peter L. Cobben ◽  
Teresa Sierra ◽  
James A. Rego ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Nonlinear Optics ◽  
Ferroelectric Liquid Crystals ◽  
Design And Synthesis

Design and synthesis of new ferroelectric liquid crystals. 2. Liquid crystals containing a nonracemic 2,3-epoxy alcohol unit

1986 ◽  
Vol 108 (23) ◽  
pp. 7424-7425 ◽  
Author(s):  
David M. Walba ◽  
Rohini T. Vohra ◽  
Noel A. Clark ◽  
Mark A. Handschy ◽  
Jiuzhi. Xue ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Ferroelectric Liquid Crystals ◽  
Design And Synthesis ◽  
Epoxy Alcohol
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