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US4851270A
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Inorganic-organic composite compositons exhibiting nonlinear optical response
Assignee: Celanese Corp
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Filing: 1987-04-17
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Granted: 1989-07-25
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Expires: 2007-04-17
Abstract
Abstract This invention provides an optical medium which consists of an inorganic glass monolith with a microporous structure containing an organic component which exhibits nonlinear optical response. In one embodiment this invention provides a sol-gel process for producing a composite of a transparent homogeneous microporous inorganic oxide glass monolith and an organic compound which exhibits nonlinear optical response.
Inventors
- 👤 Tessie M. Che
- 👤 Dagobert E. Stuetz
- 👤 Alan Buckley
- 👤 Donald R. Ulrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:28
CPC Classifications
C; C03; C03C; C03C1/00; C03C1/006; C03C14/00; C03C14/008; C03C23/00; C03C23/0095; C09; C09K; C09K19/00; C09K19/04; C09K19/38; C09K19/3833; C09K19/3842; C09K19/3852; G; G02; G02F; G02F1/00; G02F1/35; G02F1/355; G02F1/3555; G02F1/361; C03C2214/00; C03C2214/17; C03C2214/32; C09K2323/00; C09K2323/06; C09K2323/061
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
61 words
An optical medium comprising a composite composition of an inorganic oxide glass monolith with a microporous structure containing an organic component which exhibits nonlinear optical response; wherein the glass monolith microporous structure has pore diameters in the range between about 50-300 angstroms, and substantially all of the pores in the microporous structure have diameters within about 100 angstrom diameter variation range.
Claim 2
Dependent Claim
61 words
An optical medium comprising a composite composition of an inorganic oxide glass monolith with a microporous structure containing an organic component which exhibits nonlinear optical response; wherein the glass monolith microporous structure has pore diameters in the range between about 50-300 angstroms, and substantially all of the pores in the microporous structure have diameters within about 100 angstrom diameter variation range.
Claim 3
Dependent Claim
14 words
An optical medium in accordance with claim 1 wherein the inorganic oxide comprises silica.
Claim 4
Dependent Claim
24 words
An optical medium in accordance with claim 1 wherein the inorganic oxide comprises a mixture of silica and at least one additional inorganic oxide.
Claim 5
Dependent Claim
33 words
An optical medium in accordance with claim 1 wherein the optical medium exhibits a third order nonlinear optical susceptibility χ.sup.(3) of at least 1×10 -9 esu as measured at 1.91 μm excitation wavelength.
Claim 6
Dependent Claim
31 words
An optical medium in accordance with claim 1 wherein the organic component is concentrated in a zone of the microporous structure which is adjacent to a surface of the glass monolith.
Claim 7
Dependent Claim
27 words
An optical medium in accordance with claim 1 wherein the content of the organic component has a gradient distribution in the microporous structure of the glass monolith.
Claim 8
Dependent Claim
18 words
An optical medium in accordance with claim 1 which has a thickness dimension less than about 5 millimeters.
Claim 9
Dependent Claim
26 words
An optical medium in accordance with claim 1 wherein between about 5-95 percent of the glass monolith microporous structure volume is filled with the organic component.
Claim 10
Dependent Claim
22 words
An optical medium in accordance with claim 1 wherein the organic component is characterized by an external field-induced orientation of aligned molecules.
Claim 11
Dependent Claim
34 words
An optical medium in accordance with claim 1 wherein the optical medium exhibits a second order nonlinear optical susceptibility χ.sup.(2) of at least about 1×10 -6 esu as measured at 1.91 μm excitation wavelength.
Claim 12
Dependent Claim
67 words
A nonlinear optical medium comprising a composite composition of a homogeneous inorganic glass monolith with a microporous structure containing an organic component which comprises a thermoplastic polymer exhibiting nonlinear optical response; wherein the glass monolith microporous structure has pore diameters in the range between about 50-300 angstroms, and substantially all of the pores in the microporous structure have diameters within about a 100 angstrom diameter variation range.
Claim 13
Dependent Claim
67 words
A nonlinear optical medium comprising a composite composition of a homogeneous inorganic glass monolith with a microporous structure containing an organic component which comprises a thermoplastic polymer exhibiting nonlinear optical response; wherein the glass monolith microporous structure has pore diameters in the range between about 50-300 angstroms, and substantially all of the pores in the microporous structure have diameters within about a 100 angstrom diameter variation range.
Claim 14
Dependent Claim
27 words
A nonlinear optical medium in accordance with claim 11 wherein the organic component is composed of at least one additional organic constituent which exhibits nonlinear optical response.
Claim 15
Dependent Claim
20 words
A nonlinear optical medium in accordance with claim 11 wherein the organic component comprises a side chain liquid crystalline polymer.
Claim 16
Dependent Claim
150 words
A nonlinear optical medium comprising a composite composition of a homogeneous inorganic glass monolith with a microporous structure containing a thermoplastic polymer which is characterized by a recurring monomeric unit corresponding to the formula: ##STR10## where P is a polymer main chain unit, S is a flexible spacer group having a linear chain length of between about 0-20 atoms, M is a pendant group which exhibits a second order nonlinear optical susceptibility β of at least about 5×10 -30 esu as measured at 1.91 μm excitation wavelength, and where the pendant groups comprise at least about 10 weight percent of the polymer, and the polymer has a glass transition temperature above about 40° C.; wherein the glass monolith microporous structure has pore diameters in the range between about 50-300 angstroms, and substantially all of the pores in the microporous structure have diameters within about a 100 angstrom diameter variation range.
Claim 17
Dependent Claim
150 words
A nonlinear optical medium comprising a composite composition of a homogeneous inorganic glass monolith with a microporous structure containing a thermoplastic polymer which is characterized by a recurring monomeric unit corresponding to the formula: ##STR10## where P is a polymer main chain unit, S is a flexible spacer group having a linear chain length of between about 0-20 atoms, M is a pendant group which exhibits a second order nonlinear optical susceptibility β of at least about 5×10 -30 esu as measured at 1.91 μm excitation wavelength, and where the pendant groups comprise at least about 10 weight percent of the polymer, and the polymer has a glass transition temperature above about 40° C.; wherein the glass monolith microporous structure has pore diameters in the range between about 50-300 angstroms, and substantially all of the pores in the microporous structure have diameters within about a 100 angstrom diameter variation range.
Claim 18
Dependent Claim
24 words
A nonlinear optical medium in accordance with claim 14 wherein the optical medium is characterized by an external field-induced orientation of aligned polymer molecules.
Claim 19
Dependent Claim
132 words
A nonlinear optical medium comprising a composite composition of a homogeneous inorganic glass monolith with a microporous structure containing a thermoplastic polymer which is characterized by a recurring monomeric unit corresponding to the formula: ##STR11## where P is a polymer main chain unit; m is an integer of at least 3; S' is a flexible spacer group having a linear chain length of between about 1-25 atoms; X is --NR--, --O-- or --S--; R is hydrogen or a C 1 -C 4 alkyl group; Y is ##STR12## Z is an electron-donating group or an electron-withdrawing group; wherein the glass monolith microporous structure has pore diameters in the range between about 50-300 angstroms, and substantially all of the pores in the microporous structure have diameters within about a 100 angstrom diameter variation range.
Claim 20
Dependent Claim
132 words
A nonlinear optical medium comprising a composite composition of a homogeneous inorganic glass monolith with a microporous structure containing a thermoplastic polymer which is characterized by a recurring monomeric unit corresponding to the formula: ##STR11## where P is a polymer main chain unit; m is an integer of at least 3; S' is a flexible spacer group having a linear chain length of between about 1-25 atoms; X is --NR--, --O-- or --S--; R is hydrogen or a C 1 -C 4 alkyl group; Y is ##STR12## Z is an electron-donating group or an electron-withdrawing group; wherein the glass monolith microporous structure has pore diameters in the range between about 50-300 angstroms, and substantially all of the pores in the microporous structure have diameters within about a 100 angstrom diameter variation range.
Claim 21
Dependent Claim
17 words
A nonlinear optical medium in accordance with claim 16 wherein the main chain is a polyvinyl structure.
Claim 22
Dependent Claim
115 words
A nonlinear optical medium comprising a composite composition of a homogeneous inorganic glass monolith with a microporous structure containing a thermoplastic polymer which is characterized by a recurring monomeric unit corresponding to the formula: ##STR13## where m 1 is an integer of at least 5; n is an integer between about 4-20; X 1 is --NR 1 , --O-- or --S--; R 1 is hydrogen or methyl; and Z 1 is --NO 2 , --CN or --CF 3 ; wherein the glass monolith microporous structure has pore diameters in the range between about 50-300 angstroms, and substantially all of the pores in the microporous structure have diameters within about a 100 angstrom diameter variation range.
Claim 23
Dependent Claim
115 words
A nonlinear optical medium comprising a composite composition of a homogeneous inorganic glass monolith with a microporous structure containing a thermoplastic polymer which is characterized by a recurring monomeric unit corresponding to the formula: ##STR13## where m 1 is an integer of at least 5; n is an integer between about 4-20; X 1 is --NR 1 , --O-- or --S--; R 1 is hydrogen or methyl; and Z 1 is --NO 2 , --CN or --CF 3 ; wherein the glass monolith microporous structure has pore diameters in the range between about 50-300 angstroms, and substantially all of the pores in the microporous structure have diameters within about a 100 angstrom diameter variation range.
References Cited (Backward Citations)
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) | 1992-07-24 | 1993-01-23 | 1993-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-24 | 1997-01-23 | 1997-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-24 | 2001-01-23 | 2001-07-25 | $7700.00 | Window Closed / Lapsed |