OPTICAL SENSOR EMPLOYING A REFRACTIVE INDEX ENGINEERED METAL OXIDE MATERIAL
First Claim
Patent Images
1. An optical sensor device, comprising:
- an optical waveguide portion having a core, the core having a first refractive index; and
a functional material layer coupled to the optical waveguide portion, wherein the functional material layer comprises a metal oxide material, the functional material layer being structured to have a second refractive index, the second refractive index being less than the first refractive index.
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Abstract
An optical sensor device includes an optical waveguide portion having a core, the core having a first refractive index, and a functional material layer coupled to the optical fiber portion, the functional material layer being made of a metal oxide material, the functional material layer being structured to have a second refractive index, the second refractive index being less than the first refractive index. The functional material layer may be a nanostructure material comprising the metal oxide material with a plurality of holes or voids formed therein such that the functional material layer is caused to have the second refractive index.
16 Citations
37 Claims
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1. An optical sensor device, comprising:
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an optical waveguide portion having a core, the core having a first refractive index; and a functional material layer coupled to the optical waveguide portion, wherein the functional material layer comprises a metal oxide material, the functional material layer being structured to have a second refractive index, the second refractive index being less than the first refractive index. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of making an optical sensor device, comprising:
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providing an optical waveguide portion having a core; and forming a functional material layer made of a metal oxide material, the functional material layer being coupled to the optical waveguide portion, the core having a first refractive index, the functional material layer being structured to have a second refractive index, the second refractive index being less than the first refractive index. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. An optical sensor device, comprising:
a multilayer hollow waveguide device having; a hollow waveguide tube layer, an intermediate layer provided inside the hollow waveguide tube layer; and a metal oxide coating layer inside the intermediate layer. - View Dependent Claims (32, 33, 34, 35, 36, 37)
Specification