Abstract: Disclosed are organic electrooptic materials. The electrooptic materials are functionalized by novel methods and structures. The electrooptic materials are structured with a head and a tail where the head and tail sequentially assemble into a non-centrosymmetric ordered array. The electrooptic materials are further structured in covalently bonded dimer pairs where one of the pairs is zwitterionic. The non-centrosymmetric ordered array bonds directly to electrodes which allows for efficient application of the electric field. The organic electrooptic materials disclosed offer greater hyperpolarizability, greater bandwidth, reduced operating voltage with less optical loss.

Abstract: Crosslinked films having electro-optic activity, compositions and compounds for making the films, methods for making the films, and devices that include the films are disclosed.

Abstract: A composite having electro-optic activity including a chromophore compound dispersed in a host material comprising a dendronized chromophore compound, methods for making the composite, and electro-optic devices including the composite.

Abstract: Nonlinear optically active compounds, macrostructures that include nonlinear optically active components, and devices including the macrostructures. The nonlinear optically active compounds include dendrimers having two or more nonlinear optically active components. In certain embodiments, the compounds and dendrimers are crosslinkable.

Abstract: Acceptor compounds useful for making hyperpolarizable organic chromophores having a ?-donor conjugated to a ?-acceptor through a ?-bridge.

Abstract: Electron acceptor compounds, nonlinear optical chromophores made from the electron acceptor compounds, methods for making the electron acceptor compounds and nonlinear optical chromophores, lattices that include the nonlinear optical chromophores, and devices that include the nonlinear optical chromophores.

Abstract: Osmium complexes having the formula [Os(II) (N—N)2L—L]2+ 2A? (or A2?), or [Os(II) N—N(L—L)2]2+ 2A? (or A2?), where N—N is a bipyridine or phenanthroline ligand, L—L is a ?-acid bidentate ligand, and A is counter ion.

Abstract: A crosslinkable second-order nonlinear optical polymer having one or more polarizable chromophore moieties, one or more diene moieties, and one or more dienophile or dienophile precursor moieties, wherein the diene and dienophile moieties are reactive to form 4+2 cycloaddition products; a crosslinked second-order nonlinear optical polymer having aligned, polarizable chromophore moieties and one or more 4+2 cycloaddition moieties, wherein the 4+2 cycloaddition moieties are reversibly, thermally reactive to provide diene moieties and dienophile moieties; lattices and devices that include the crosslinkable second-order nonlinear optical polymer; lattices and devices that include the crosslinked second-order nonlinear optical polymer; and methods for making the crosslinked second-order nonlinear optical polymer.

Abstract: A crosslinkable second-order nonlinear optical polymer having one or more polarizable chromophore moieties, one or more diene moieties, and one or more dienophile or dienophile precursor moieties, wherein the diene and dienophile moieties are reactive to form 4+2 cycloaddition products; a crosslinked second-order nonlinear optical polymer having aligned, polarizable chromophore moieties and one or more 4+2 cycloaddition moieties, wherein the 4+2 cycloaddition moieties are reversibly, thermally reactive to provide diene moieties and dienophile moieties; lattices and devices that include the crosslinkable second-order nonlinear optical polymer; lattices and devices that include the crosslinked second-order nonlinear optical polymer; and methods for making the crosslinked second-order nonlinear optical polymer.

Abstract: Nonlinear optically active compounds, methods for making nonlinear optically active compounds, compounds useful for making nonlinear optically active compounds, methods for making compounds useful for making nonlinear optically active compounds, macrostructures that include nonlinear optically active components, and devices including the nonlinear optically active compounds and the macrostructures.

Abstract: A dihydrofuran-containing nonlinear optical chromophore having a ?-electron donor group conjugated to the dihydrofuran group through a ?-electron conjugated bridge group. The nonlinear optical chromophore is a hyperpolarizable chromophore that can be used as an electro-optic modulator in electro-optic devices.

Abstract: Nonlinear optically active compounds, methods for making nonlinear optically active compounds, compounds useful for making nonlinear optically active compounds, methods for making compounds useful for making nonlinear optically active compounds, macrostructures that include nonlinear optically active components, and devices including the nonlinear optically active compounds and the macrostructures.

Abstract: A crosslinkable second-order nonlinear optical polymer having one or more polarizable chromophore moieties, one or more diene moieties, and one or more dienophile or dienophile precursor moieties, wherein the diene and dienophile moieties are reactive to form 4+2 cycloaddition products; a crosslinked second-order nonlinear optical polymer having aligned, polarizable chromophore moieties and one or more 4+2 cycloaddition moieties, wherein the 4+2 cycloaddition moieties are reversibly, thermally reactive to provide diene moieties and dienophile moieties; lattices and devices that include the crosslinkable second-order nonlinear optical polymer; lattices and devices that include the crosslinked second-order nonlinear optical polymer; and methods for making the crosslinked second-order nonlinear optical polymer.

Abstract: Nonlinear optically active compounds, methods for making nonlinear optically active compounds, compounds useful for making nonlinear optically active compounds, methods for making compounds useful for making nonlinear optically active compounds, macrostructures that include nonlinear optically active components, and devices including the nonlinear optically active compounds and the macrostructures.

Abstract: The present invention provides hyperpolarizable organic chromophores. The chromophores are nonlinear optically active compounds that include a &pgr;-donor conjugated to a &pgr;-acceptor through a &pgr;-electron conjugated bridge. Macromolecular structures including the hyperpolarizable organic chromophores are also provided.

Abstract: Sterically stabilized second-order nonlinear optical chromophores and devices incorporating the same are embodied in a variety of chromophore materials. An exemplary preferred chromophore includes an electron donor group, an electron acceptor group and a bridge structure therebetween, with the electron acceptor group being double bonded to the bridge structure. In a preferred embodiment, the bridge structure also includes at least one bulky side group. Another exemplary preferred chromophore includes an electron donor group, an electron acceptor group and a ring-locked bridge structure between the electron donor group and the electron acceptor group. The bridge structure comprises, for example, two protected alicyclic rings or ring-locked trienone. Another exemplary preferred chromophore includes an electron donor group, a ring-locked tricyano electron acceptor group, and a bridge structure therebetween. In a preferred embodiment, the electron acceptor group comprises an isophorone structure.

Abstract: A new class of high hyperpolarizability organic chromophores and a process for synthesizing the same. The chromophores incorporate at least one organic substituent and are formed in consideration of molecular shapes and a spatial anisotropy of intermolecular interactions. The chromophores are processed into hardened material lattices to lock-in poling induced electric-optic activity. Preferred organic substituents are alkyl, aryl, and isophorone groups. A composite including the organic chromophore, in a preferred embodiment, includes a polymer such as a poly(methylmethacrylate), polyimide, polyamic acid, polystyrene, polycarbonate or polyurethane. The optimized chromophores result in hardened electro-optic polymers suitable for electro-optic modulators and other devices such as optical switches. These modulators can be configured to work at high frequencies and in arrays for applications in communications and network connections.

Abstract: A new class of asymmetrical diphenyl-diacetylene liquid crystal compounds exhibit ideal properties for formulating eutectic mixtures suitable for infrared and microwave applications. The new class of liquid crystal compounds comprise asymmetrical nonpolar end groups. These compounds exhibit low melting points, wide nematic temperature range and low heat fusion enthalpy. Eutectic mixtures containing entirely diphenyl-diacetylene homologs using the new compounds have high birefringence, low viscosity and wide nematic range. These unique properties are especially advantageous when these mixtures are used in infrared spatial light modulators, high speed liquid crystal modulators and polymer dispersed liquid crystals shutters. The new asymmetrical diphenyl-diacetylene liquid crystal compounds comprise the following basic structure:R.sub.1 --C.sub.6 H.sub.4 --C.tbd.C--C.tbd.C--C.sub.6 H.sub.4 --R.sub.2wherein R.sub.1 and R.sub.2 are nonpolar end groups and R.sub.1 does not equal R.sub.2. R.sub.