US6002522A
Expired / Lapsed
US
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Optical functional element comprising photonic crystal
Assignee: Toshiba Corp
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Filing: 1997-06-10
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Granted: 1999-12-14
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Expires: 2017-06-10
Abstract
Abstract An optical functional element including two diffraction gratings having metal films formed on their surfaces, which are arranged to oppose each other to form a photonic band, and an optical functional film interposed between these diffraction gratings, the optical functional film consisting of a polymer containing an optical functional material, such as a nonlinear optical material and electro-optic material, dispersed in the polymer.
Inventors
- 👤 Kenji Todori
- 👤 Toshiro Hiraoka
- 👤 Shuji Hayase
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:16
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/18; G02B5/1814; B; B82; B82Y; B82Y20/00; G02B6/00; G02B6/10; G02B6/12; G02B6/122; G02B6/1225; G02F; G02F1/00; G02F1/01; G02F1/061; G02F1/35; G02F1/37; G02F1/377; G02F1/3775; G02B6/24; G02B6/26; G02B6/28; G02B6/2804; G02B6/2861; G02F2202/00; G02F2202/32
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
81 words
An optical functional element comprising: a structure having materials with different refractive indices and periodically arranged to form a photonic band folded onto a first Brillouin zone edge defining a Brillouin zone edge wavelength, wherein a difference between a wavelength of a light to be transmitted and the Brillouin zone edge wavelength falls within 15% of the Brillouin zone edge wavelength, wherein the transmitted light wavelength stays within the photonic band, and wherein the structure comprises patterned resist lines and air.
Claim 2
Dependent Claim
81 words
An optical functional element comprising: a structure having materials with different refractive indices and periodically arranged to form a photonic band folded onto a first Brillouin zone edge defining a Brillouin zone edge wavelength, wherein a difference between a wavelength of a light to be transmitted and the Brillouin zone edge wavelength falls within 15% of the Brillouin zone edge wavelength, wherein the transmitted light wavelength stays within the photonic band, and wherein the structure comprises patterned resist lines and air.
Claim 3
Dependent Claim
70 words
An optical functional element comprising: a structure having materials with different refractive indices and periodically arranged to form a photonic band folded onto a first Brillouin zone edge defining a Brillouin zone edge wavelength, wherein the structure comprises patterned resist lines and an inorganic material buried between adjacent resist lines; and wherein the Brillouin zone edge wavelength is set in a vicinity of a wavelength of light to be transmitted.
Claim 4
Dependent Claim
70 words
An optical functional element comprising: a structure having materials with different refractive indices and periodically arranged to form a photonic band folded onto a first Brillouin zone edge defining a Brillouin zone edge wavelength, wherein the structure comprises patterned resist lines and an inorganic material buried between adjacent resist lines; and wherein the Brillouin zone edge wavelength is set in a vicinity of a wavelength of light to be transmitted.
Claim 5
Dependent Claim
23 words
The element according to claim 2, further comprising an ultrasonic generator configured to change a periodicity of the materials with different refractive indices.
Claim 6
Dependent Claim
22 words
The element according to claim 2, further comprising a temperature regulator configured to change periodicity of the materials with different refractive indices.
Claim 7
Dependent Claim
84 words
An optical functional element comprising: a structure having materials with different refractive indices and periodically arranged to form a photonic band folded onto a first Brillouin zone edge defining a Brillouin zone edge wavelength, wherein a difference between a wavelength of a light to be transmitted and the Brillouin zone edge wavelength falls within 15% of the Brillouin zone edge wavelength, wherein the transmitted light wavelength stays within the photonic band, and wherein the structure comprises a periodically exposed core of an optical fiber.
Claim 8
Dependent Claim
84 words
An optical functional element comprising: a structure having materials with different refractive indices and periodically arranged to form a photonic band folded onto a first Brillouin zone edge defining a Brillouin zone edge wavelength, wherein a difference between a wavelength of a light to be transmitted and the Brillouin zone edge wavelength falls within 15% of the Brillouin zone edge wavelength, wherein the transmitted light wavelength stays within the photonic band, and wherein the structure comprises a periodically exposed core of an optical fiber.
Claim 9
Dependent Claim
79 words
An optical functional element comprising: a structure having materials with different refractive indices and periodically arranged to form a photonic band folded onto a first Brillouin zone edge defining a Brillouin zone edge wavelength, wherein a difference between a wavelength of a light to be transmitted and the Brillouin zone edge wavelength falls within 15% of the Brillouin zone edge wavelength, wherein the transmitted light wavelength stays within the photonic band, and wherein the structure comprises a diffraction grating.
Claim 10
Dependent Claim
79 words
An optical functional element comprising: a structure having materials with different refractive indices and periodically arranged to form a photonic band folded onto a first Brillouin zone edge defining a Brillouin zone edge wavelength, wherein a difference between a wavelength of a light to be transmitted and the Brillouin zone edge wavelength falls within 15% of the Brillouin zone edge wavelength, wherein the transmitted light wavelength stays within the photonic band, and wherein the structure comprises a diffraction grating.
Claim 11
Dependent Claim
85 words
An optical functional element comprising: a structure having materials with different refractive indices and periodically arranged to form a photonic band folded onto a first Brillouin zone edge defining a Brillouin zone edge wavelength, wherein a difference between a wavelength of a light to be transmitted and the Brillouin zone edge wavelength falls within 15% of the Brillouin zone edge wavelength, wherein the transmitted light wavelength stays within the photonic band, and wherein the structure comprises a block copolymer having a regular phase separation structure.
Claim 12
Dependent Claim
85 words
An optical functional element comprising: a structure having materials with different refractive indices and periodically arranged to form a photonic band folded onto a first Brillouin zone edge defining a Brillouin zone edge wavelength, wherein a difference between a wavelength of a light to be transmitted and the Brillouin zone edge wavelength falls within 15% of the Brillouin zone edge wavelength, wherein the transmitted light wavelength stays within the photonic band, and wherein the structure comprises a block copolymer having a regular phase separation structure.
Claim 13
Dependent Claim
54 words
An optical functional element comprising a structure having materials with different refractive indices and periodically arranged to form a photonic band folded onto a first Brillouin zone edge, wherein said structure comprises: a diffraction grating configured to form the photonic band, and an optical functional film formed on a surface of said diffraction grating.
Claim 14
Dependent Claim
54 words
An optical functional element comprising a structure having materials with different refractive indices and periodically arranged to form a photonic band folded onto a first Brillouin zone edge, wherein said structure comprises: a diffraction grating configured to form the photonic band, and an optical functional film formed on a surface of said diffraction grating.
Claim 15
Dependent Claim
71 words
An optical functional element comprising a structure having materials with different refractive indices and periodically arranged to form a photonic band folded onto a first Brillouin zone edge, wherein said structure comprises: a diffraction grating configured to form the photonic band, a first metal film formed on said diffraction grating; an optical functional film formed on said first metal film; and a second metal film formed on said optical functional film.
Claim 16
Dependent Claim
71 words
An optical functional element comprising a structure having materials with different refractive indices and periodically arranged to form a photonic band folded onto a first Brillouin zone edge, wherein said structure comprises: a diffraction grating configured to form the photonic band, a first metal film formed on said diffraction grating; an optical functional film formed on said first metal film; and a second metal film formed on said optical functional film.
Claim 17
Dependent Claim
46 words
An optical functional element comprising: two diffraction gratings having metal films formed thereon, said diffraction gratings being arranged to oppose each other and to form a photonic band folded onto a first Brillouin zone edge; and an optical functional film interposed between the two diffraction gratings.
Claim 18
Dependent Claim
46 words
An optical functional element comprising: two diffraction gratings having metal films formed thereon, said diffraction gratings being arranged to oppose each other and to form a photonic band folded onto a first Brillouin zone edge; and an optical functional film interposed between the two diffraction gratings.
Claim 19
Dependent Claim
21 words
The element according to claim 10, wherein said optical functional film comprises a polymer including an optical functional material dispersed therein.
Claim 20
Dependent Claim
17 words
The element according to claim 11, wherein the optical functional material comprises a second-order nonlinear optical material.
Claim 21
Dependent Claim
17 words
The element according to claim 11, wherein the optical functional material comprises a third-order nonlinear optical material.
Claim 22
Dependent Claim
15 words
The element according to claim 11, wherein the optical functional material comprises a light-emitting material.
Claim 23
Dependent Claim
66 words
An optical functional element comprising: two diffraction gratings arranged to oppose each other, having metal films formed on surfaces thereof, and configured to form a photonic band folded onto a first Brillouin zone edge; an electro-optic material interposed between said two diffraction gratings; and a driver connected to the metal films and adapted to apply a voltage to change a refractive index of said electro-optic material.
Claim 24
Dependent Claim
66 words
An optical functional element comprising: two diffraction gratings arranged to oppose each other, having metal films formed on surfaces thereof, and configured to form a photonic band folded onto a first Brillouin zone edge; an electro-optic material interposed between said two diffraction gratings; and a driver connected to the metal films and adapted to apply a voltage to change a refractive index of said electro-optic material.
Claim 25
Dependent Claim
58 words
An optical functional element comprising: a diffraction grating having a metal film formed thereon; a metal body; and an optical functional film interposed between the diffraction grating and the metal body; wherein the diffraction grating and the metal body are arranged to oppose each other and to form a photonic band folded onto a first Brillouin zone edge.
Claim 26
Dependent Claim
58 words
An optical functional element comprising: a diffraction grating having a metal film formed thereon; a metal body; and an optical functional film interposed between the diffraction grating and the metal body; wherein the diffraction grating and the metal body are arranged to oppose each other and to form a photonic band folded onto a first Brillouin zone edge.
Claim 27
Dependent Claim
21 words
The element according to claim 16, wherein said optical functional film comprises a polymer including an optical functional material dispersed therein.
Claim 28
Dependent Claim
17 words
The element according to claim 17, wherein said optical functional material comprises a second-order nonlinear optical material.
Claim 29
Dependent Claim
17 words
The element according to claim 17, wherein said optical functional material comprises a third-order nonlinear optical material.
Claim 30
Dependent Claim
15 words
The element according to claim 17, wherein said optical functional material comprises a light-emitting material.
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 2002-12-13 | 2003-06-14 | 2003-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-12-13 | 2007-06-14 | 2007-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-12-13 | 2011-06-14 | 2011-12-14 | $7700.00 | Window Closed / Lapsed |