Organic nonlinear optical material

Details Organic nonlinear optical material Organic nonlinear optical material

1990-10-19

1992-12-08

Raymond, Richard L.

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

Organic compounds

Amino nitrogen containing

548570, 549404, 558414, 558422, 560 35, 562440, 564152, 564153, 564157, 564163, 564185, 564212, 564213, 564272, 564274, C07C25104

Patent

active

051699869

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 molelcular 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 exhibit 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
patent: 4987255 (1991-01-01), Tsunekawa et al.
ACS, Symposium Series, 233 (1983).
D. J. Williams, Chem. Int. Ed. Engl. 23, p. 690, (1984).
V. D. Shigorin, "Materials and Apparatus in Quantum Radio Physics", p. 77 (1982).
Al-Tai et al., "Nuclear . . . ", J. Chem. Soc. Perkin II, 1976, pp. 133-136.
Kozlov et al (Chem. Abs., 71:12748d (1969).
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).

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