IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
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출원번호 |
US-0463279
(2003-06-17)
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등록번호 |
US-7386205
(2008-06-10)
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발명자
/ 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
10 인용 특허 :
91 |
초록
▼
The present invention is directed to a device for reflecting a select polarization of at least one transmission having a given wavelength impinging upon the device. The device includes a substrate and a layer of nanostructures. The nanostructures form a resonant pattern on the substrate adapted to d
The present invention is directed to a device for reflecting a select polarization of at least one transmission having a given wavelength impinging upon the device. The device includes a substrate and a layer of nanostructures. The nanostructures form a resonant pattern on the substrate adapted to define a plurality of high contrast refractive index interfaces suitable for reflecting the select polarization of the at least one transmission.
대표청구항
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What is claimed is: 1. A device for reflecting a select polarization of at least one transmission having a given wavelength impinging upon said device, said device comprising: a substrate; a layer of non-metallic nanostructures positioned over and directly on said substrate and forming a resonant p
What is claimed is: 1. A device for reflecting a select polarization of at least one transmission having a given wavelength impinging upon said device, said device comprising: a substrate; a layer of non-metallic nanostructures positioned over and directly on said substrate and forming a resonant pattern substantially over said substrate adapted to define a plurality of high contrast refractive index interfaces suitable for reflecting said select polarization of said at least one transmission; and a cladding layer overlying said substrate, wherein said device for reflecting is a broadband device such that the refractive index of said layer of non-metallic nanostructures is substantially greater than that of said substrate and that of said cladding layer. 2. The device of claim 1, wherein a polarization orthogonal to said select polarization of said at least one transmission is substantially transmitted by said device. 3. The device of claim 1, wherein a polarization orthogonal to said select polarization of said at least one transmission is substantially reflected by said layer of nanostructures. 4. The device of claim 1, wherein said cladding layer is positioned substantially adjacent to said layer of nanostructures and substantially distal to said substrate. 5. The device of claim 4, wherein said cladding layer and said substrate have substantially similar refractive indices. 6. The device of claim 5, wherein said substrate includes a first portion and a second portion, wherein said first portion has a substantially similar refractive index to said cladding layer. 7. The device of claim 6, wherein said second portion and said first portion have substantially the same refractive indices. 8. The device of claim 6, wherein the refractive index of said second portion and the refractive index of said first portion are measurably different. 9. The device of claim 4, further comprising at least one coating operably coupled to said cladding layer and being adapted to at least partially mitigate transmission losses. 10. The device of claim 9, wherein said at least one coating is substantially adjacent to said cladding layer. 11. The device of claim 9, wherein said at least one coating is substantially adjacent to said substrate. 12. The device of claim 9, wherein said at least one coating includes a coating substantially adjacent to said cladding layer and at least one coating substantially adjacent to said substrate. 13. The device of claim 4, further comprising at least one residual layer between said substrate and said cladding and having a substantially similar refractive index to said layer of nanostructures. 14. The device of claim 1, further comprising a plurality of micro-lenses formed into an array substantially aligned with said pattern. 15. The device of claim 14, wherein said micro-lenses have a substantially uniform pitch size. 16. The device of claim 14, wherein said micro-lenses have a substantially varied pitch size. 17. The device of claim 14, wherein said micro-lens array comprises at least one of a refractive, diffractive and hybrid array. 18. The device of claim 14, wherein said layer of nanostructures is positioned such that each of the plurality of lenses of said array focuses on a corresponding portion of said layer of nanostructures. 19. The device of claim 18, wherein the refractive index of said micro-lenses is substantially similar to the refractive index of said substrate. 20. The device of claim 14, further comprising at least a second micro-lens array aligned with said layer of nanostructures. 21. The device of claim 20, wherein the refractive index of said second micro-lens array is different from the refractive index of said substrate. 22. The device of claim 20, wherein said layer of nanostructures is positioned such that each of said second micro-lenses focuses on a corresponding portion of said layer of nanostructures. 23. The device of claim 22, further comprising at least one pair of optical fibers being suitable for use with said at least one transmission,wherein said pair of fibers is optically coupled to at least one of said micro-lenses of said first array. 24. The device of claim 22, further comprising at least two arrays of pairs of optical fibers, wherein a first pair of said fibers is optically coupled to said first micro-lenses in said first array and a second pair of fibers is optically coupled to a second of said micro-lenses in said second array. 25. The device of claim 24, wherein said fibers are polarization maintaining. 26. A method for forming a device for reflecting a select polarization of at least one transmission having a given wavelength, said method comprising: forming substrate including a surface for receiving a layer of nanostructures; overlaying a film adapted to receive a replication over said substrate; replicating a pattern of non-metallic nanostructures in said overlaid film and processing to thereby form a layer of non-metallic nanostructures over and directly on said substrate; and forming a cladding layer over said formed layer of non-metallic nanostructures, wherein said device for reflecting is a broadband device such that the refractive index of said layer of non-metallic nanostructures is substantially greater than that of said substrate and that of said cladding layer. 27. The method of claim 26, wherein the step of forming a cladding layer includes forming said cladding layer substantially adjacent to a surface of said layer of nanostructures and substantially distal to said substrate. 28. The method of claim 27, further comprising applying at least one coating substantially adjacent to said cladding layer. 29. The method of claim 27, further comprising applying at least one coating substantially adjacent to a surface of said substrate substantially distal to said cladding layer. 30. The method of claim 27, further comprising including a residual layer substantially adjacent to said substrate and substantially adjacent to said layer of nanostructures. 31. The method of claim 27, further comprising building a confinement boundary formed substantially adjacent to said substrate and adapted to form a cavity with said substrate substantially forming a closure on one end of said cavity. 32. The method of claim 31, further comprising forming a second substrate incorporated to form a closure on an end of said cavity opposite said one end. 33. The method of claim 32, further comprising applying a second layer of nanostructures on said second substrate. 34. The method of claim 32, further comprising enhancing reflection of said select polarization of at least one transmission by orienting said first substrate and said second substrate. 35. The method of claim 27, further comprising substantially aligning a first array including a plurality of micro-lenses in a telecentric mode with said layer of nanostructures. 36. The method of claim 35, further comprising substantially aligning a second array including a plurality of micro-lenses in a telecentric mode with said layer of nanostructures. 37. The method of claim 36, further comprising aligning a first pair of a plurality of fibers adjacent to said first array and a second pair of said plurality of fibers adjacent to said second array, said first pair and said second pair aligned in a telecentric mode. 38. A device for polarization independent reflecting of at least one transmission having a given wavelength impinging upon said device, said device comprising: a substrate; a layer of non-metallic nanostructures positioned over and directly on said substrate and forming a resonant pattern substantially over said substrate adapted to define a plurality of high contrast refractive index interfaces suitable for polarization independently substantially reflecting said at least one transmission; and a cladding layer overlying said substrate, wherein said device for polarization independent reflecting is a broadband device such that the refractive index of said layer of non-metallic nanostructures is substantially greater than that of said substrate and that of said cladding layer. 39. The device of claim 38, wherein said cladding layer is positioned substantially adjacent to said layer of nanostructures and substantially distal to said substrate. 40. The device of claim 39, wherein said cladding layer and said substrate have substantially similar refractive indices. 41. The device of claim 40, wherein said substrate includes a first portion and a second portion, wherein said first portion has a substantially similar refractive index to said cladding layer. 42. The device of claim 41, wherein said second portion and said first portion have substantially the same refractive indices. 43. The device of claim 41, wherein the refractive index of said second portion and the refractive index of said first portion are measurably different. 44. The device of claim 39, further comprising at least one coating operably coupled to said cladding layer and adapted to at least partially mitigate transmission losses. 45. The device of claim 44, wherein said at least one coating is substantially adjacent to said cladding layer. 46. The device of claim 44, wherein said at least one coating is substantially adjacent to said substrate. 47. The device of claim 44, wherein said at least one coating includes a coating substantially adjacent to said cladding layer and at least one coating substantially adjacent to said substrate. 48. The device of claim 39, further comprising at least one residual layer between said substrate and said cladding and having a substantially similar refractive index with said layer of nanostructures.
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