EP0228169A2
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EP
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Organic nonlinear optical media
Assignee: Celanese Corp
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Filing: 1986-11-12
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Granted: —
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Expires: 2006-11-12
Abstract
Abstract In one embodiment this invention provides a nonlinear optical medium which consists of a transparent solid substrate coated with a Langmuir-Blodgett deposition of at least one molecular monolayer, of uniaxial aligned charge asymmetric quinodimethane molecules, such as 7,7-bis(hexadecylaminol-8,8-dicyanoquinodimethane:
Inventors
- 👤 Eui Won Choe
- 👤 Anthony F. Garito
- 👤 Garo Khanarian
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 03:19
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/35; G02F1/355; G02F1/361; G02F1/3611; G11; G11B; G11B7/00; G11B7/24; G11B7/241; G11B7/242; G11B7/244; G11B7/245; G11B7/252; G11B7/253; G11B7/2531; G11B7/2533; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31645
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
64 words
A nonlinear optical medium comprising a transparent solid substrate with a surface coating of at least one monomolecular layer of uniaxial aligned quinodimethane molecules corresponding to the formula : where R' is a substituent selected from hydrogen and aliphatic, alicyclic and aromatic groups containing 6-30 carbon atoms; n is 0,1,2 or 3; and at least one of the R' substituents is an electron-donating group.
Claim 2
Dependent Claim
64 words
A nonlinear optical medium comprising a transparent solid substrate with a surface coating of at least one monomolecular layer of uniaxial aligned quinodimethane molecules corresponding to the formula : where R' is a substituent selected from hydrogen and aliphatic, alicyclic and aromatic groups containing 6-30 carbon atoms; n is 0,1,2 or 3; and at least one of the R' substituents is an electron-donating group.
Claim 3
Dependent Claim
15 words
A nonlinear optical medium in accordance with claim 1 wherein n is 0 or 1.
Claim 4
Dependent Claim
24 words
A nonlinear optical medium in accordance with claim 1 or 2 wherein at least one R substituent in the formula is an amino group.
Claim 5
Dependent Claim
42 words
A nonlinear optical medium in accordance with claim 3 wherein the quinodimethane molecules correspond to the formula: where R is a substituent selected from aliphatic, alicyclic and aromatic groups containing 6-30 carbon atoms, and R 1 is hydrogen or a R substituent.
Claim 6
Dependent Claim
42 words
A nonlinear optical medium in accordance with claim 3 wherein the quinodimethane molecules correspond to the formula : where R is a substituent selected from aliphatic,alicyclic and aromatic groups containing 6-30 carbon atoms, and R 1 is hydrogen or a R substituent.
Claim 7
Dependent Claim
43 words
A nonlinear optical medium in accordance with claim 3 wherein the quinodimethane molecules correspond to the formula : where R is a substituent selected from aliphatic, alicyclic and aromatic groups containing 6-30 carbon atoms, and R 1 is hydrogen or a R substituent.
Claim 8
Dependent Claim
27 words
A nonlinear optical medium in accordance with any of claims 4-6 wherein the R substituent in the quinodimethane formula is an aliphatic group containing 10-20 carbon atoms.
Claim 9
Dependent Claim
32 words
A nonlinear optical medium in accordance with any of claims 4-6 wherein the R substituent in the quinodimethane formula is an alkyl group containing 10-20 carbon atoms, and R 1 is hydrogen.
Claim 10
Dependent Claim
15 words
A nonlinear optical medium in accordance with claim 4 wherein the quinodimethane is 13,13-di(n-hexadecyl- amino)-14,14-dicyanodiphenylquinodimethane.
Claim 11
Dependent Claim
16 words
A nonlinear optical medium in accordance with claim 5 wherein the quinodimethane compound is 13,13-di(n-hexadecylamino)-14,14-dicyano-4,5,9,10-tetrahydropyrenoquino- dimethane.
Claim 12
Dependent Claim
32 words
A nonlinear optical medium in accordance with claim 6 wherein the quinodimethane compound is 7,7-di(hexyl- amino)-8,8-dicyanoquinodimethane, or 7,7-di(4-ethoxybutylamino) -8,8-dicyanoquinodimethane, or 7,7-di(dodecylamino)-8,8- dicyanoquinodimethane, or 7,7-di(hexadecylamino)-8,8-dicyano- quinodimethane, or 7,7-di (2-chlorodecylamino)-8,8-dicyano- quinodimethane, or 7,7-di[di(hexadecyl)amino]-8,8-dicyanoquino- dimethane.
Claim 13
Dependent Claim
26 words
A nonlinear optical medium in accordance with any of claims 1-11 wherein the surface coating comprises at least two monomolecular layers of uniaxial aligned quinodimethane molecules.
Claim 14
Dependent Claim
30 words
A nonlinear optical medium in accordance with any of claims 1-12 wherein the surface coating is a Langmuir-Blodgett deposition of at least one monomolecular layer of uniaxial aligned quinodimethane molecules.
Claim 15
Dependent Claim
26 words
A nonlinear optical medium in accordance with any of claims 1-13 which exhibits a second order susceptibility p of at least 200 x 10 -30 esu.
Claim 16
Dependent Claim
37 words
A process for preparing a nonlinear optical medium in accordance with any of claims 1-14 which comprises coating a transparent solid substrate surface by Langmuir-Blodgett deposition technique with at least one monomolecular layer of the quinodimethane molecules.
Claim 17
Dependent Claim
36 words
A nonlinear optical medium in the form of a transparent solid substrate comprising (1) a host thermoplastic polymer; and (2) a quest organic compound which has a quinodimethane structure as defined in any of claims 1-11.
Claim 18
Dependent Claim
22 words
A nonlinear optical medium in accordance with claim 16 wherein the solid substrate is noncentrosymmetric and exhibits second order nonlinear optical response.
Claim 19
Dependent Claim
22 words
A nonlinear optical medium in accordance with claim 16 wherein the solid substrate is centrosymmetric and exhibits third order nonlinear optical response.
Claim 20
Dependent Claim
37 words
An electrooptic light modulating device with a nonlinear optical component comprising a transparent solid substrate with a surface coating of at least one monomolecular layer of uniaxial aligned quinodimethane molecules as defined in any of claims 1-11.
Claim 21
Dependent Claim
42 words
An electrooptic light modulating device with a nonlinear optical component in the form of a transparent solid medium comprising (1) a host thermoplastic polymer; and (2) a guest organic compound which has a quinodimethane structure as defined in any of claims 1-11.
References Cited (Backward Citations)
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