Patent ID: 6652779
Filing Date: 2003-11-25
Classification: C08K,C09B,G02F

Abstract:
A second-order nonlinear optical device comprising an active element including a linear chain NLO polyester formed according the following preparation scheme: wherein Ch is a dihydroxy functionalized chromophore containing a &pgr;-conjugate polyene structure as the bridge or part of the bridge that connects the electron donor and electron acceptor, and the polyene structure is formed as wherein R1-R9&boxH;H, F, or any perhalogenated, halogenated or non-halogenated aliphatic or aromatic group with 1-30 carbon atoms functionalized with zero or more of the following functional groups: hydroxy, ether, ester, amino, silyl, and siloxy, and R groups at different positions are not necessarily the same; wherein the monomer M1 is an aromatic or aliphatic diacid or diacid dihalide; wherein the monomer M2 is an aromatic or aliphatic diol; wherein n is the degree of polymerization; wherein x defines the molar ratio between Ch and M1, with the loading level of Ch being tuned by the molar ratio.