Abstract: A two-photon absorbing (TPA) compound is provided, along with a method of making same. The TPA compound has a general structural formula: where A is an acceptor moiety that is connected to m number of diarylaminofluorene arms (m=1-3); in each diarylaminofluorene arms, R is selected from linear or branched alkyl chains having a general formula CnH2n+1, where n is in a range from 2 to 25; where R1, R2, and R3 are independently selected from H or C1-C4 alkyls; where R4 is selected from C1-C5 alkyls; and wherein R5 through R10 are independently selected from H, alkoxyls, alkyls, or aryls. A may be benzothiazol-2-yl, benzo[1,2-d:4,5-d?]bisthiazole-2,6-diyl, thiazolo[5,4-d]thiazole-2,5-diyl-, 1,3,5-triazine-2,4,6-triyl, 1,3,5-triazine-2,4,6-triyl, benzo[1,2-d:3,4-d?:5,6-d?]tristhiazole-2,5,8-triyl-, or dithieno[3,2-b:2?,3?-d]thiophene-2,6-diyl-.

Abstract: Diphenylamine-benzobisthiazole-diphenylamine monomers having two-photon absorption cross-sections and high solubility in organic solvents are provided. Also provided are the corresponding organo-soluble, wholly conjugated and two-photon absorbing benzobisthiazole-triarylamine polymers.

Abstract: A method of synthesizing a two-photon active tris(diarylamino-9,9-di(R)fluorenyl)-1,3,5-triazine compound having the structure: where Y is hydrogen, a thermally self-polymerizable acrylic, or a methacrylic group; R is an alkyl group of the formula —CmH2m+1, wherein the subscript m ranges from 1 to 6, or an alkylether group of the formula —(CH2CH2O)pMe, wherein the subscript p ranges from 1 to 5; R? is an alkyl group; and the R?—(OY)x groups are attached to the phenyl rings of the triarylamine moiety either in a para position or a meta position and the subscript x ranges from 1 to 3. The compound may be synthesized by (a) synthesizing a diarylamine intermediate, (b) synthesizing a brominated 1,3,5-triazine intermediate as a three-arm core structure, and (c) forming the two-photon active tris(diarylamino-9,9-di(R)fluorenyl)-1,3,5-triazine compound by covalently joining the diarylamine and each arm of the three-arm core structure and removing the acetone protecting groups.

Abstract: Two-photon absorbing (2PA), cross-linked polyurethanes were prepared from bis(isocyanato) monomers, tris(isocyanato) monomers or a mixture thereof, in conjunction with novel polyol molecules with donor-acceptor octupolar geometry, whose generic structure is comprised of an electron-accepting 1,3,5-triazine hub with three spokes constituted by electron-donating triarylalkylamine end-groups, which are polyfunctionalized with thermally reactive alcohol functions. The resulting neat glassy or rubbery solids are applicable in a wide range of linear and nonlinear optical applications.

Abstract: Provided are novel polyimides, poly(amide-imides) and polyamides, which are generated from new two photon diamino-monomers of the formula: wherein para or meta X—C6H4—O— and X?NH2; and CnHn+1 is either a straight or branched alkyl chain, and wherein n is an integer from 1 to 20.

Abstract: A method of synthesizing a two-photon active tris(diarylamino-9,9-di(R)fluorenyl)-1,3,5-triazine compound having the structure: where Y is hydrogen, a thermally self-polymerizable acrylic, or a methacrylic group; R is an alkyl group of the formula —CmH2m+1, wherein the subscript m ranges from 1 to 6, or an alkylether group of the formula —(CH2CH2O)pMe, wherein the subscript p ranges from 1 to 5; R? is an alkyl group; and the R?—(OY)x groups are attached to the phenyl rings of the triarylamine moiety either in a para position or a meta position and the subscript x ranges from 1 to 3. The compound may be synthesized by (a) synthesizing a diarylamine intermediate, (b) synthesizing a brominated 1,3,5-triazine intermediate as a three-arm core structure, and (c) forming the two-photon active tris(diarylamino-9,9-di(R)fluorenyl)-1,3,5-triazine compound by covalently joining the diarylamine and each arm of the three-arm core structure and removing the acetone protecting groups.

Abstract: Provided are novel 2PA-active monomers of the formula: wherein Y?H, acrylic or methacrylic moiety; R is a linear or branched alkyl group, —CmH2m+1, where m=1-6 or an alkylether group, —(CH2CH2O)pMe, where p=1-5. The number of R?—(OH)x groups, attached to the phenyl rings of the triarylamine moiety either in a para or a meta position, could be 3 or 6 per molecule, or mixtures of molecules containing 3, 4, 5, 6 in various ratios and wherein x=1, 2, or 3. R? is a linear or branched alkyl group such as —CmH2m, where m=1-6, i.e. linear —(CH2)m, where m=2-6, or branched alkyl group such as —CH2CH(R?)—, where R??—(CH2)lCH3, where l=2-6.

Abstract: Two-photon absorbing arylamine-endcapped and dialkylfluorene-bridged benzobisthiazole-based compounds are provided. These two-photon absorbing benzobisthiazole-based compounds show high solubility in nonpolar hydrocarbon solvents (oleophilicity) and high two-photon properties, especially in the nanosecond domain of pulse-laser excitation.

Abstract: Two-photon absorbing (2PA), cross-linked polyurethanes were prepared from bis(isocyanato) monomers, tris(isocyanato) monomers or a mixture of bis(isocyanato) and tris(isocyanato) monomers, in conjunction with a novel polyol molecules with donor-acceptor octupolar geometry, whose generic structure is comprised of an electron-accepting 1,3,5-triazine hub with three spokes constituted by electron-donating triarylalkylamine end-groups, which are polyfunctionalized with thermally reactive alcohol functions. The resulting neat glassy or rubbery solids are applicable in a wide range of linear & nonlinear optical applications.

Abstract: Provided are new 2PA chromophores of the formula: wherein X=para- or meta-NO2; para- or meta-NH2; and CnHn+1 is either a straight or branched alkyl chain, and n is an integer from 1-20.

Abstract: A novel o-aminophenol-carboxylic AB-monomer with the following chemical structure: for synthesizing new rigid-rod polybenzobisazoles was prepared from the corresponding nitrobenzothiazolecarboxylic acid via an enzymatic process.

Abstract: Provided are new two-photon absorbing chromophores of the formula: wherein R is an alkyl group having 1 to 20 carbon atoms and Q is OH, OMe, propargyloxy-(O—CH2—C?CH), methylpropargyloxy-(O—CH2—C?C—CH3), allyloxy-(O—CH2—C?CH2),1-methyl-allyloxy(O—CH2—CH?CHCH3) and 3-methyl-allyloxy (O—CH(CH3)—CH?CH2).

Abstract: Provided are chromophores of the formula: wherein R is an alkyl group having 1 to 20 carbon atoms, and Q is —(CH2)n—Br, and wherein n has a value of 2–6.

Abstract: Provided are new TPA chromophores of the formula: wherein R is an alkyl group having 1 to 20 carbon atoms and Q is —C6H13, —CH2—C6H5, or —C6H11.

Abstract: Provided are chromophores of the formula Q—(—L—Z)x, wherein x is 2 or 3, wherein Q is selected from the group consisting of wherein L is wherein R is an alkyl group having 1 to 20 carbon atoms, and wherein Z is selected from the group consisting of

Abstract: Provided are chromophores of the formula Q—(—L—Z)x, wherein x is 3 or 4, wherein Q is selected from the group consisting of wherein L is selected from the group consisting of wherein R is an alkyl group having 1 to 20 carbon atoms, and wherein Z is selected from the group consisting of

Abstract: Provided are chromophores with very large two-photon absorption cross-sections. One group of these chromophores has the formula: (T—Q)n—N—Phm wherein Q is a single bond or 1,4-phenylene, Ph is a phenyl group, n has a value of 1-3 and m has a value of 3−n, and wherein T is wherein R1 and R2 are alkyl groups having 1 to 20 carbon atoms, provided that when Q is a single bond, the value of n is 2 or 3. Another group of these chromophores has the formula: (T—Q)n—G—Phm wherein T is as defined above, Q is a single bond or 1,4-phenylene, Ph is a phenyl group, n has a value of 1-4 and m has a value of 4−n, and wherein G is a 4-arm core unit. Yet another group of these chromophores has the formula: (T—Q)n—G—Phm wherein T is as described previously, Q is a single bond or 1,4-phenylene, Ph is a phenyl group, n has a value of 1-6 and m has a value of 6−n, and wherein G is a 6-arm core unit.

Abstract: There are provided asymmetrical two-photon chromophores of the formula:D--Ar--Awherein Ar is selected from the group consisting of ##STR1## wherein Fl is a fluorene group of the formula: ##STR2## wherein R.sub.1 and R.sub.2 are alkyl groups having 2 to 20 carbon atoms, and wherein R.sub.1 and R.sub.2 are the same or different;wherein D is ##STR3## wherein Q is selected from the group consisting of --H, --OH and --O--C.sub.x H.sub.2x+1, wherein x has a value of 1 to 10;and wherein A is selected from the group consisting of ##STR4## wherein Z is selected from the group consisting of --O-- and --S--.

Abstract: A two-photon absorbing chromophore of the formulaE--Ar--Ewherein the Ar core is selected from the group consisting of ##STR1## wherein R.sub.1 and R.sub.2 are alkyl groups having 8 to 12 carbon atoms, and wherein R.sub.1 and R.sub.

Abstract: This invention is directed to a compound which is 4-(4'-(N',N'-dimethylamino)phenyl)-2-(2'-n-octyloxyphenyl)-6-phenyl pyridine.