Negatively-refractive focusing and sensing apparatus, methods, and systems
First Claim
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1. A method, comprising:
- determining electromagnetic parameters that define a negative refractive index in a spatial region, the electromagnetic parameters providing an axial magnification greater than one for an interior focusing region within the spatial region; and
configuring an artificially-structured material having an effective electromagnetic response that corresponds to the electromagnetic parameters in the spatial region;
wherein the electromagnetic parameters are selected from a group consisting of permittivity and permeability, the electromagnetic parameters including;
axial electromagnetic parameters; and
transverse electromagnetic parameters that inversely correspond to the axial electromagnetic parameters.
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Abstract
Apparatus, methods, and systems provide negatively-refractive focusing and sensing of electromagnetic energy. In some approaches the negatively-refractive focusing includes providing an interior focusing region with an axial magnification substantially greater than one. In some approaches the negatively-refractive focusing includes negatively-refractive focusing with a transformation medium, where the transformation medium may include an artificially-structured material such as a metamaterial.
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53 Claims
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1. A method, comprising:
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determining electromagnetic parameters that define a negative refractive index in a spatial region, the electromagnetic parameters providing an axial magnification greater than one for an interior focusing region within the spatial region; and configuring an artificially-structured material having an effective electromagnetic response that corresponds to the electromagnetic parameters in the spatial region; wherein the electromagnetic parameters are selected from a group consisting of permittivity and permeability, the electromagnetic parameters including;
axial electromagnetic parameters; andtransverse electromagnetic parameters that inversely correspond to the axial electromagnetic parameters. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53)
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Specification