EP0021695A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Novel nonlinear optical materials and processes employing diacetylenes
Assignee: University Patents Inc
•
Filing: 1980-06-09
•
Granted: —
•
Expires: 2000-06-09
Abstract
Abstract Novel non-linear optical, piezoelectric, pyroelectric, waveguide, and other materials are presented together with processes for their employment and articles formed thereby. Such materials, processes and articles comprise diacetylenes and polymers formed from diacetylenic species, which polymers are amenable to close geometric, steric, structural, and-electronic control. Accordingly, it is now possible to design, formulate and employ new diacetylenic species and polymers formed therefrom to provide non-linear optic, waveguide, piezoelectric, and pyroelectric materials and devices having surprising efficiencies and degrees of effect. According to a preferred embodiment of the invention, diacetylenes which are crystallizable into crystals. having a non-centrosymmetric unit cell may form single crystals or may be elaborated into a thin film upon a substrate by the Langmuir-Blodgett technique. Such films may, optionally, be polymerized either thermally or by irradiation for use in non- linear optical and other systems. According to other prefered embodiments, diacetylenes are covalently bonded to substrates through the employment of silane species and subsequently polymerized to yield non-linear optic and other devices having high structural integrity in addition to high efficiencies and effects.
Inventors
- 👤 Anthony Frank Garito
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 21:30
CPC Classifications
B; B05; B05D; B05D1/00; B05D1/18; B05D1/20; B05D1/202; B82; B82Y; B82Y20/00; B82Y30/00; B82Y40/00; C; C07; C07C; C07C205/00; C07C205/27; C07C205/35; C07C205/36; C07C205/37; C07C57/00; C07C57/18; C07C57/52; C08; C08F; C08F138/00; G; G02; G02B; G02B6/00; G02B6/10; G02B6/12; G02B6/13; G02B6/138; G02F; G02F1/00; G02F1/0009; G02F1/0018; G02F1/35; G02F1/355; G02F1/361; G02F1/3615; G02F1/3618; G03; G03F; G03F7/00; G03F7/004; G03F7/025; G02F1/3515; G02F1/37; G02F1/377; G02F3/00
Claims Analysis
Total Claims: 45
Claim 1
Independent Claim
13 words
A diacetylene which is crystallizable, into a crystal having a non-centrosymmetic unit cell.
Claim 2
Dependent Claim
13 words
A diacetylene which is crystallizable, into a crystal having a non-centrosymmetic unit cell.
Claim 3
Dependent Claim
8 words
A diacetylene having at least one chiral centre.
Claim 4
Dependent Claim
8 words
A diacetylene having at least one chiral centre.
Claim 5
Dependent Claim
14 words
A diacetylene as claimed in Claims 1 or 2 which has been substantially polymerized.
Claim 6
Dependent Claim
16 words
A diacetylene as claimed in Claims 1, 2 or 3 having a sensible nonlinear optic effect.
Claim 7
Dependent Claim
17 words
A diacetylene as claimed in Claims 1, 2 or 3 having. a sensible piezoelectric or pyroelectric effect.
Claim 8
Dependent Claim
35 words
A composition'comprising at least one material having at least two acetylenic bonds, at least two of said bonds being in conjugation with one another, said material being crystallizable, said crystal having a non-centrosymmetric unit cell.
Claim 9
Dependent Claim
35 words
A composition'comprising at least one material having at least two acetylenic bonds, at least two of said bonds being in conjugation with one another, said material being crystallizable, said crystal having a non-centrosymmetric unit cell.
Claim 10
Dependent Claim
16 words
A composition as claimed in Claim 6 wherein said material has at least one chiral centre.
Claim 11
Dependent Claim
19 words
An article comprising at least one substantially polymerized diacetylene, said article being adapted to function as an optical waveguide.
Claim 12
Dependent Claim
19 words
An article comprising at least one substantially polymerized diacetylene, said article being adapted to function as an optical waveguide.
Claim 13
Dependent Claim
12 words
An article as claimed in Claim 8 wherein said diacetylene is non-centrosymmetric.
Claim 14
Dependent Claim
51 words
An optical waveguide comprising at least one diacetylenic layer comprising at least one substantially polymerized diacetylene, at least one boundary layer on either side of said diacetylenic layer, said boundary layers having an index of refraction lower than said diacetylenic layer, and input meana for coupling light into said diacetylenic layer.
Claim 15
Dependent Claim
51 words
An optical waveguide comprising at least one diacetylenic layer comprising at least one substantially polymerized diacetylene, at least one boundary layer on either side of said diacetylenic layer, said boundary layers having an index of refraction lower than said diacetylenic layer, and input meana for coupling light into said diacetylenic layer.
Claim 16
Dependent Claim
29 words
A waveguide as claimed in Claim 10 further comprising output means for coupling light out of said diacetylenic layer and sensing means for detecting light transmitted by said layer.
Claim 17
Dependent Claim
30 words
An article comprising a substrate; and at least one layer on said substrate of at least one substantially polymerized diacetylene, said article exhibiting sensible non-linear optical, piezoelectric or pyroelectric effects.
Claim 18
Dependent Claim
30 words
An article comprising a substrate; and at least one layer on said substrate of at least one substantially polymerized diacetylene, said article exhibiting sensible non-linear optical, piezoelectric or pyroelectric effects.
Claim 19
Dependent Claim
20 words
An article as claimed in Claim 12 wherein said diacetylene is crystallizable into a crystal having a non-centrosymmetric unit cell.
Claim 20
Dependent Claim
18 words
An article as claimed in Claim 8 or 12 wherein said diacetylene has at least one chiral centre.
Claim 21
Dependent Claim
17 words
15: An article as claimed in Claims 8, 9 or 14 having a sensible non-linear optical effect.
Claim 22
Dependent Claim
19 words
An article as claimed in Claims 12, 13 or 14 wherein said layer is bonded to said substrate covalently.
Claim 23
Dependent Claim
13 words
An article as claimed in Claim 16 wherein said bonding comprises silicon-oxygen bonds.
Claim 24
Dependent Claim
14 words
An article as claimed in Claim 13 further comprising a superstrate on said layer.
Claim 25
Dependent Claim
20 words
An article as claimed in Claim 18 wherein both said substrate and said superstrate are bonded to said layer covalently.
Claim 26
Dependent Claim
13 words
An article as claimed in Claim 19 wherein said bonding comprises silicon-oxygen bonds.
Claim 27
Dependent Claim
35 words
An article comprising: at least one layer of at least one substantially polymerized diacetylene, said diacetylene being crystallizable into a crystal having a non-centrosymmetric unit cell; and means for establishing an electric field across said-layer.
Claim 28
Dependent Claim
35 words
An article comprising: at least one layer of at least one substantially polymerized diacetylene, said diacetylene being crystallizable into a crystal having a non-centrosymmetric unit cell; and means for establishing an electric field across said-layer.
Claim 29
Dependent Claim
18 words
An article as claimed in Claim 21 wherein said layer is adapted to act as an optical waveguide.
Claim 30
Dependent Claim
27 words
An article as claimed in Claim 22 further comprising input means for coupling light into said layer and output means for coupling light out of said layer.
Claim 31
Dependent Claim
18 words
An article as claimed in Claim 23 further comprising sensing means for detecting light transmitted by said layer.
Claim 32
Independent Claim
55 words
An apparatus comprising at least one non- linear optical device comprising: a planar optical waveguide comprising at least one layer of a substantially polymerized diacetylene, said diacetylene being crystallizable into a crytal having a non-centrosymmetric unit cell; input means for coupling light into said waveguide; and output means for coupling light out of said waveguide-.
Claim 33
Independent Claim
55 words
An apparatus comprising at least one non- linear optical device comprising: a planar optical waveguide comprising at least one layer of a substantially polymerized diacetylene, said diacetylene being crystallizable into a crytal having a non-centrosymmetric unit cell; input means for coupling light into said waveguide; and output means for coupling light out of said waveguide-.
Claim 34
Dependent Claim
30 words
An apparatus as claimed in Claim 25 wherein the frequency of the light exiting the guide is a second harmonic of the frequency of the light entering the - guide.
Claim 35
Dependent Claim
14 words
An apparatus as claimed in Claim 26 wherein said exiting light is phase matched.
Claim 36
Dependent Claim
18 words
An apparatus as claimed in Claim 25 further comprising means for establishing an electric field across said waveguide.
Claim 37
Dependent Claim
30 words
An apparatus as claimed in Claim 28 wherein the light exiting the waveguide is modulated, polarized, frequency selected, amplified or frequency modified with respect to the light entering the waveguide.
Claim 38
Dependent Claim
18 words
An apparatus as claimed in Claim 25 wherein said device is elaborated upon a substrate having semiconducting properties.
Claim 39
Independent Claim
20 words
An apparatus as claimed in Claims 25, 26, 28, 28 or 29 comprising a plurality of said non-linear optical devices.
Claim 40
Dependent Claim
14 words
An apparatus as claimed in Claim 31 adapted to function as a logic device.
Claim 41
Dependent Claim
44 words
A process comprising coating a substrate with at least one layer of a diacetylene which is crystallizable into a crystal having a non-centrosymmetric unit cell, irradiating selected portions of said layer to cause substantial polymerization of said portions and removing those portions not irradiated.
Claim 42
Dependent Claim
44 words
A process comprising coating a substrate with at least one layer of a diacetylene which is crystallizable into a crystal having a non-centrosymmetric unit cell, irradiating selected portions of said layer to cause substantial polymerization of said portions and removing those portions not irradiated.
Claim 43
Dependent Claim
23 words
A process.as claimed in Claim 33 further comprising providing means for generating an electric field across at least one of said selected portions.
Claim 44
Dependent Claim
18 words
A process as claimed in Claim 34 further comprising providing input means for coupling light into said layer.
Claim 45
Dependent Claim
17 words
A process as claimed in Claims 33, 34 or 35 whereby an optical logic device is provided.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.