US4913845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic-inorganic composites with enhanced nonlinear optical response
Assignee: CNA Holdings LLC
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Filing: 1989-01-10
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Granted: 1990-04-03
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Expires: 2009-01-10
Abstract
Abstract In one embodiment this invention provides an nonlinear optical medium which is a composite of a polymer matrix which exhibits nonlinear optic response, and a silver colloid which is dispersed in the polymer matrix.
Inventors
- 👤 Gunilla E. Gillberg-LaForce
- 👤 Garo Khanarian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:46
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/02; C08K3/08; G; G02; G02F; G02F1/00; G02F1/35; G02F1/355; G02F1/3551
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
95 words
A nonlinear optical medium which is a composite comprising (1) a polymer matrix of a side chain polymer which exhibits nonlinear optical response; (2) about 5-30 weight percent, based on the composite weight, of an organic compound which exhibits nonlinear optical response; and (3) about 0.001-5 weight percent, based on the composite weight, of a metal colloid which is uniformly dispersed in the polymer matrix, wherein the metal colloid has an average particle diameter in the range between about 10-1000 angstroms and has a particle surface plasmon frequency in the range between about 300-800 nm.
Claim 2
Dependent Claim
95 words
A nonlinear optical medium which is a composite comprising (1) a polymer matrix of a side chain polymer which exhibits nonlinear optical response; (2) about 5-30 weight percent, based on the composite weight, of an organic compound which exhibits nonlinear optical response; and (3) about 0.001-5 weight percent, based on the composite weight, of a metal colloid which is uniformly dispersed in the polymer matrix, wherein the metal colloid has an average particle diameter in the range between about 10-1000 angstroms and has a particle surface plasmon frequency in the range between about 300-800 nm.
Claim 3
Dependent Claim
21 words
A nonlinear optical medium in accordance with claim 1 wherein the organic compound has a molecular weight less than about 1000.
Claim 4
Dependent Claim
15 words
A nonlinear optical medium in accordance with claim 1 wherein the organic compound is 4-nitroaniline.
Claim 5
Dependent Claim
15 words
A nonlinear optical medium in accordance with claim 1 wherein the organic compound is 2-methyl-4-nitroaniline.
Claim 6
Dependent Claim
15 words
A nonlinear optical medium in accordance with claim 1 wherein the organic compound is 4-N,N-dimethylamino-4'-nitrostilbene.
Claim 7
Dependent Claim
17 words
A nonlinear optical medium in accordance with claim 1 wherein the metal colloid is a silver colloid.
Claim 8
Dependent Claim
17 words
A nonlinear optical medium in accordance with claim 1 wherein the metal colloid is a gold colloid.
Claim 9
Dependent Claim
18 words
A nonlinear optical medium in accordance with claim 1 wherein the metal colloid is a silver-gold cluster colloid.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-04-02 | 1993-10-02 | 1994-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-02 | 1997-10-02 | 1998-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-02 | 2001-10-02 | 2002-04-03 | $7700.00 | Window Closed / Lapsed |