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Emitting and negatively-refractive focusing apparatus, methods, and systems

  • US 8,817,380 B2
  • Filed: 10/21/2008
  • Issued: 08/26/2014
  • Est. Priority Date: 05/30/2008
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • spatially contracting an electromagnetic wave along a contraction direction by propagating the electromagnetic wave in an electromagnetic medium that includes a negative refractive index medium;

    negatively refracting the contracted electromagnetic wave at a surface region of the electromagnetic medium, the surface region defining a surface normal direction corresponding to the contraction direction;

    and emitting the electromagnetic wave at one or more locations within a field region;

    wherein the negatively refracting and the spatially contracting provide the field region for the electromagnetic wave.

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