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US5688318A
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Photonic band gap materials and method of preparation thereof
Assignee: Individual
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Filing: 1995-06-06
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Granted: 1997-11-18
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Expires: 2015-06-06
Abstract
Abstract The invention concerns materials which exhibit photonic band gaps in the near infrared and visible regions of the optical spectrum and methods of preparation of such materials.
Inventors
- 👤 Joseph B. Milstein
- 👤 Ronald G. Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:53
CPC Classifications
G; G02; G02B; G02B1/00; G02B1/002; G02B1/005; H; H10; H10F; H10F71/00; B; B82; B82Y; B82Y20/00; G02B6/00; G02B6/10; G02B6/12; G02B6/122; G02B6/1225; G02F; G02F1/00; G02F1/01; G02F1/0128; G02F1/0131; G02F1/21; H10F71/121; G02F2202/00; G02F2202/32; Y; Y02; Y02E; Y02E10/00; Y02E10/50; Y02E10/547; Y02P; Y02P70/00; Y02P70/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
Modification of a photonic band gap behavior of a photonic band gap material by modification of a physical periodicity or a dielectric constant or both of the said photonic band gap material by application of one or more of the excitations chosen from the group comprising: a. a thermal excitation, b. a physical compression or extension, c. an electric field excitation, and d. a magnetic field excitation, or by the addition of the same or other photonic band gap material so as to modify the physical periodicity of the said photonic band gap material.
Claim 2
Dependent Claim
94 words
Modification of a photonic band gap behavior of a photonic band gap material by modification of a physical periodicity or a dielectric constant or both of the said photonic band gap material by application of one or more of the excitations chosen from the group comprising: a. a thermal excitation, b. a physical compression or extension, c. an electric field excitation, and d. a magnetic field excitation, or by the addition of the same or other photonic band gap material so as to modify the physical periodicity of the said photonic band gap material.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-11-17 | 2001-05-19 | 2001-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-11-17 | 2005-05-19 | 2005-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-11-17 | 2009-05-19 | 2009-11-18 | $7700.00 | Window Closed / Lapsed |