US5220451A
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Second-order nonlinear optical device
Assignee: Toray Industries Inc
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Filing: 1989-06-27
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Granted: 1993-06-15
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Expires: 2009-06-27
Abstract
Abstract PCT No. PCT/JP89/00635 Sec. 371 Date Feb. 27, 1991 Sec. 102(e) Date Feb. 27, 1991 PCT Filed Jun. 27, 1989 PCT Pub. No. WO91/00543 PCT Pub. Date Jan. 10, 1991.The present invention relates to a high performance nonlinear optical device by utilizing an optical medium of large second order nonlinear optical effects, which has acceptable processability and stability. The second-order nonlinear optical device of the present invention comprises an optical element of a monoclinic crystal of 4-hydroxy-3-methoxy-4'-nitrostilbene represented by the formula (I): <IMAGE> (I) said crystal belonging to space group P21, point group #4, said optical element having at least one substantially optically smooth surface.
Inventors
- 👤 Tetsuya Gotoh
- 👤 Tetsuya Tsunekawa
- 👤 Seiji Fukuda
- 👤 Hiroshi Mataki
- 👤 Keiichi Egawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:13
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/35; G02F1/355; G02F1/361; G02F1/3611; C; C07; C07C; C07C205/00; C07C205/27; C07C205/35
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
47 words
A second-order nonlinear optical device comprising an optically biaxial nonlinear optical element of a monoclinic crystal of 4-hydroxy-3-methoxy-4'-nirostilbene represented by the formula (I): ##STR4## said crystal belonging to space group P2 1 , point group #4, said optical element having at least one substantially optically smooth surface.
Claim 2
Dependent Claim
47 words
A second-order nonlinear optical device comprising an optically biaxial nonlinear optical element of a monoclinic crystal of 4-hydroxy-3-methoxy-4'-nirostilbene represented by the formula (I): ##STR4## said crystal belonging to space group P2 1 , point group #4, said optical element having at least one substantially optically smooth surface.
Claim 3
Dependent Claim
41 words
The second-order nonliner optical device of claim 1, wherein said at least one substantially optically smooth surface is a means for impinging, transmitting or propagating light having a main optical wave component polarized in a plane perpendicular to crystallographic c axis.
Claim 4
Dependent Claim
37 words
The second-order nonlinear optical device of claim 2, wherein said at least one substantially optically smooth surface is a means for impinging, transmitting or propagating light having a main optical wave component polarized along crystallographic b axis.
Claim 5
Dependent Claim
26 words
The second-order nonlinear optical device of claim 1, wherein said at least one substantially optically smooth surface is a (0 0 1) face of said crystal.
Claim 6
Dependent Claim
26 words
The second-order nonlinear optical device of claim 1, wherein said at least one substantially optically smooth surface is a (1 0 0) face of said crystal.
Claim 7
Dependent Claim
33 words
The second-order nonlinear optical device of claim 1, further comprising at least one pair of electrodes for applying an electric field having a main component in a plane perpendicular to crystallographic c axis.
Claim 8
Dependent Claim
30 words
The second-order nonlinear optical device of claim 6, wherein said at least one pair of electrodes are for applying an electric field having a main component along crystallographic b axis.
Claim 9
Dependent Claim
30 words
The second-order nonlinear optical device of claim 1, further comprising at least one pair of electrodes above a (0 0 1) face of said crystal, which is substantially optically smooth.
Claim 10
Dependent Claim
172 words
The second-order nonlinear optical device of claim 1, further comprising at least one pair of electrodes above a (1 0 0) face of said crystal, which is substantially optically smooth. 1, wherein said at least one substantially optically smooth surface is (1 0 0) face of said crystal. 6. The second-order nonlinear optical device of claim 1, further comprising at least one pair of electrodes for applying an electric field having a component in a plane perpendicular to crystallographic c axis. 7. The second-order nonlinear optical device of claim 6, wherein said at least one pair of electrodes are for applying an electric field having a component along crystallographic b axis. 8. The second-order nonlinear optical device of claim 1, further comprising at least one pair of electrodes above (0 0 1) face of said crystal, which is substantially optically smooth. 9. The second-order nonlinear optical device of claim 1, further comprising at least one pair of electrodes above a (1 0 0) face of said crystal, which is substantially optically smooth.
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