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US4909964A
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Nonlinear optical devices from derivatives of stilbene and diphenylacetylene
Assignee: EIDP Inc
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Filing: 1988-02-11
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Granted: 1990-03-20
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Expires: 2008-02-11
Abstract
Abstract Certain derivatives of stilbene and diphenylacetylene capable of second harmonic generation when illuminated by coherent optical radiation are presented.
Inventors
- 👤 Robert A. Clement
- 👤 Wilson Tam
- 👤 Ying Wang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:59
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/35; G02F1/355; G02F1/361; G02F1/3611
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
81 words
A nonlinear optical device capable of second harmonic generation comprising a nonlinear optical element, a source of coherent optical radiation, and means to direct the radiation emerging from said source into the element, said nonlinear optical element comprising a crystalline compound selected from the group consisting of ##STR2## wherein A is selected from Br, Cl, F, I, HCO, and OR, where R is a C 1 -C 10 branched or unbranched hydroxyalkyl; said compound being crystallized in a noncentrosymmetric space group.
Claim 2
Dependent Claim
81 words
A nonlinear optical device capable of second harmonic generation comprising a nonlinear optical element, a source of coherent optical radiation, and means to direct the radiation emerging from said source into the element, said nonlinear optical element comprising a crystalline compound selected from the group consisting of ##STR2## wherein A is selected from Br, Cl, F, I, HCO, and OR, where R is a C 1 -C 10 branched or unbranched hydroxyalkyl; said compound being crystallized in a noncentrosymmetric space group.
Claim 3
Dependent Claim
27 words
An optical element as defined in claim 1 where R in the compound of said element, wherein A is OR, is selected from hydroxypropyl, hydroxypentyl and hydroxyhexyl.
Claim 4
Dependent Claim
13 words
An optical element as defined in claim 1 wherein the compound is trans-4-(3-hydroxypropyloxy)-4'-nitrostilbene.
Claim 5
Dependent Claim
13 words
An optical element as defined in claim 1 wherein the compound is trans-4-(5-hydroxypentyloxy)-4'-nitrostilbene.
Claim 6
Dependent Claim
13 words
An optical element as defined in claim 1 wherein the compound is 4-(6-hydroxyhexyloxy)-4'-nitrostilbene.
Claim 7
Dependent Claim
13 words
An optical element as defined in claim 1 wherein the compound is trans-4-bromo-4'-nitrostilbene.
Claim 8
Dependent Claim
13 words
An optical element as defined in claim 1 wherein the compound is trans-4-chloro-4'-nitrostilbene.
Claim 9
Dependent Claim
13 words
An optical element as defined in claim 1 wherein the compound is trans-4-fluoro-4'-nitrostilbene.
Claim 10
Dependent Claim
13 words
An optical element as defined in claim 1 wherein the compound is trans-4-formyl-4'-nitrostilbene.
Claim 11
Dependent Claim
13 words
An optical element as defined in claim 1 wherein the compound is 4-iodo-4'-nitrostilbene.
Claim 12
Dependent Claim
13 words
An optical element as defined in claim 1 wherein the compound is 4-bromo-4'-nitrodiphenylacetylene.
References Cited (Backward Citations)
US4605869A
Cited
JPS62156628A
Cited
JPS62136601A
Cited
JPS62160427A
Cited
GB2204053A
Cited
US4792208A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1993-03-19 | 1993-09-18 | 1994-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-19 | 1997-09-18 | 1998-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-19 | 2001-09-18 | 2002-03-20 | $7700.00 | Window Closed / Lapsed |