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Light emitting systems

  • US 7,166,871 B2
  • Filed: 12/12/2003
  • Issued: 01/23/2007
  • Est. Priority Date: 04/15/2003
  • Status: Active Grant
First Claim
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1. A light-emitting system including a light-emitting device that comprises:

  • a multi-layer stack of materials including a light-generating region and a first layer supported by the light-generating region,wherein;

    a surface of the first layer is configured so that light generated by the light-generating region can emerge from the light-emitting device via the surface of the first layer;

    the surface of the first layer has a dielectric function that varies spatially according to a pattern;

    the pattern has a lattice constant and a detuning parameter with a value greater than zero; and

    the light-emitting device is configured so that, when light generated by the light-generating region emerges from the light-emitting device via the surface of the first layer, the light can emerge from the light-emitting system.

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