Nonlinear optical materials

Details Nonlinear optical materials Nonlinear optical materials

1990-10-23

1994-02-22

Tucker, Philip

Compositions

Liquid crystal compositions

Containing nonchiral additive having no specified mesophase

25229901, 252582, 359104, 359328, C09K 1954, C09K 1952, F21V 900, G02F 113

Patent

active

052884260

ABSTRACT:
A nonlinear optical material having a high nonlinear optical constant useful for frequency doubler of laser beam which comprises a chiral smectic C liquid crystalline polyester consisting essentially of the structural units having the general formulae (A), (B) and (C); ##STR1## Wherein X is a structural unit selected from the group consisting of ##STR2## Wherein Y is a group having at least one optically active carbon and the total carbon number of Y is 3-12. ##STR3## wherein n is an integer of 2-10.

REFERENCES:
patent: 4738811 (1988-04-01), Hara et al.
patent: 4744918 (1988-05-01), Heppke et al.
patent: 4828758 (1989-05-01), Gillberg-LaForce et al.
patent: 5081221 (1992-01-01), Watanabe
Meredith, et al., "Optical and Nonlinear Optical Characterization of Molecularly Doped Thermotropic Liquid Crystalline Polymers," Macromolecules, 15, 1385-89 (1982).
Chemical Abstracts vol. 98, 1983, p. 19 abstract No. 98: 161429k, Chiral liquid crystal polymers.
Meredith, G. R. et al Macromolecules 15, 1385, 1982.

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