Organic nonlinear optical material

Details Organic nonlinear optical material Organic nonlinear optical material

1988-07-25

1991-01-22

Rollins, John W.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

564272, 564273, 564275, C07C29100, C07C24900

Patent

active

049872559

ABSTRACT:
The present invention provides an organic nonlinear optical material including a benzylidene-aniline derivative having an electron-donating substituent introduced at the 4-position and an electron-accepting substituent introduced at the 4'-position, by selecting as the conjugated .pi. electronic system a benzylidene-aniline derivative having a large molecular hyperpolarizability and yet a dipole moment as small as those of benzene derivatives, and introducing a molecular alignment-regulating substituent. The centrosymmetry in the bulk state of the material, for example, in the crystal state, is destroyed and the molecular alignment is regulated to such a bulk structure so that the optical nonlinearity possessed by the molecule is effectively utilized. The material exhibits a large optical nonlinearity never attained by conventional techniques.
The intermolecular cohesive force due to the .pi. electron interaction between the molecules in the present invention is larger than that between a benzene derivative. Consequently, the material has, comparatively, a high melting point, a low subliming property, and a low water-absorbing property. In conclusion, a practically invaluable nonlinear optical material having a high durability in the bulk state and an excellent resistance to laser damage is provided.

REFERENCES:
patent: 3592913 (1971-07-01), Fujinami et al.
patent: 3827780 (1974-08-01), Labes
patent: 4047803 (1977-09-01), Yaguchi et al.
patent: 4122026 (1978-10-01), Osman
patent: 4622409 (1986-11-01), Nicoud et al.
patent: 4733109 (1988-03-01), Palazzotto
Chem. Abstract No. 133601q, vol. 87, 1977.
Williams, "Organische Polymere und . . . ", Angewandte Chemie, vol. 96, 1984, pp. 637-651.
Chem. Abstract No. 69147j, vol. 83, 1975.
Al-Tai et al., "Nuclear Magnetic Resonance Spectra of Azomethines, Part I, Benzylideneanilines," in J. Chem. Soc., Perkin II, pp. 133-136, (1976).
Kozlov et al., Chem. Abs., 71, 12748d, (1969).

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