Minnesota Mining and Manufacturing Company

Roberta E Harelstad

Cecil V Francis

John E Trend

David W Macomber

Kenneth M White

Elisa M Cross

Paul F Korkowski

Peter C Leung

John Stevens

Nonlinear-optic (NLO) compositions containing functionalized merocyanine dyes, such that the molecules, comprising the NLO-active compositions have a functional group at each end of the molecule and each functional group differing in reactivity, thus permitting stepwise reaction of each functional group, and NLO-active molecules prepared from hemioxonol dyes derviatived with (meth)acrylate or (meth)acrylamide groups, and their uses in devices such as second harmonic generators or polymer integrated optics.

Nonlineaphores and polymers incorporating such nonlineaphores

This invention provides an optical medium and a process therefor wherein the medium exhibits third order nonlinear optical response and comprises a polymer with pendant groups having delocalized pi-electron character forming a charge transfer complex with dopant molecules. The optical medium is useful in optical devices, such as optical switches or light modulation devices as a component or as a coating. In other aspects, novel polymers and polymer complexes are disclosed.

Polymeric charge transfer complexes for nonlinear optical applications

Devices for and method of generating coherent second harmonic light radiation. The devices comprise a laser source of coherent light radiation at a fixed fundamental frequency, a crystalline N,N'-substituted barbituric acid that crystallizes in a non-centrosymmetric configuration, means for directing the output radiation of the laser onto the N,N'-substituted barbituric acid, and output means for utilizing the second harmonic frequency.

Second harmonic generation with N,N'-substituted barbituric acids

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Bloomington, MN, United States of America

Roberta E Harelstad