Organic nonlinear optical material

Details Organic nonlinear optical material Organic nonlinear optical material

1990-01-26

1993-03-16

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

430 20, 526310, 526311, 526312, 526258, 359241, 359245, 359280, C08F 3802, C08F23802

Patent

active

051945487

ABSTRACT:
Disclosed is an organic nonlinear optical material comprising a compound having a conjugate main chain in the molecule and having donor groups D and acceptor groups A added onto the conjugate main chain in the sequence of . . . , D, D, A, A, D, D, . . . , in which the distance between adjacent D's and the distance between adjacent A's are shorter than the distance between adjacent D and A with respect to the distance between the atoms on the main chain to which the respective groups are bonded.
In this organic nonlinear optical material, since electron wave functions are modified, enhanced quadratic and cubic nonlinear optical effects can be attained. Accordingly, the organic nonlinear optical material can be advantageously utilized for an electro-optical element and an optical-to-optical element.

REFERENCES:
patent: 4615962 (1986-10-01), Garito
patent: 4711532 (1987-12-01), Choe
patent: 4748273 (1988-05-01), Fukuda
patent: 4767826 (1988-08-01), Liang
patent: 4772421 (1988-09-01), Ikenaga
patent: 4781443 (1988-11-01), Giles
"An Exceptionally Large Linear Electro-Optic Effect in the Organic Solid MNA", Lipscomb et al, J. Chem. Phys., vol. 75, No. 3, Aug. 1, 1981, pp. 1509-1516.
"Organic Materials for Optical Second Harmonic Generation", Twieg et al, ACS Symposium Series 233, 1983, pp. 57-80.
"Optical Nonlinearities in One-Dimensional-Conjugated Polymer Crystals", Sauteret et al, Physical Review Letters, vol. 36, No. 16, Apr. 19, 1976, pp. 956-959.

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