Emitting and negatively-refractive focusing apparatus, methods, and systems
First Claim
Patent Images
1. An electromagnetic apparatus, comprising:
- a negatively-refractive focusing structure disposed to transmit electromagnetic energy from an interior field region with an axial magnification greater than one;
wherein the negatively-refractive focusing structure is characterized by electromagnetic parameters 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 emitting and negatively-refractive focusing of electromagnetic energy. In some approaches the negatively-refractive focusing includes negatively-refractive focusing from an interior field 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.
112 Citations
55 Claims
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1. An electromagnetic apparatus, comprising:
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a negatively-refractive focusing structure disposed to transmit electromagnetic energy from an interior field region with an axial magnification greater than one; wherein the negatively-refractive focusing structure is characterized by electromagnetic parameters 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. - 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, 54, 55)
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Specification