US4966730A
Expired / Lapsed
US
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Nonlinear optical devices from derivatives of stilbene and diphenylacetylene
Assignee: EIDP Inc
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Filing: 1989-12-20
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Granted: 1990-10-30
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Expires: 2009-12-20
Abstract
Abstract Certain derivatives of stilbene and diphenylacetylene are capable of second harmonic generation when illuminated by coherent optical radiation.
Inventors
- 👤 Robert A. Clement
- 👤 Wilson Tam
- 👤 Ying Wang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:40
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/35; G02F1/355; G02F1/361; G02F1/3611
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
In an electro-optic modulator comprising means to direct a coherent beam of radiation into an optical element and means to apply an electric field to said optical element in a direction to modify the transmission of said beam, the improvement wherein said beam is directed into an 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
93 words
In an electro-optic modulator comprising means to direct a coherent beam of radiation into an optical element and means to apply an electric field to said optical element in a direction to modify the transmission of said beam, the improvement wherein said beam is directed into an 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.
References Cited (Backward Citations)
No citation records indexed.
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| 3.5 Years (Year 4) | 1993-10-29 | 1994-04-30 | 1994-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-29 | 1998-04-30 | 1998-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-29 | 2002-04-30 | 2002-10-30 | $7700.00 | Window Closed / Lapsed |