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White, single or multi-color light emitting diodes by recycling guided modes

  • US 20060054905A1
  • Filed: 09/10/2004
  • Published: 03/16/2006
  • Est. Priority Date: 09/10/2004
  • Status: Active Grant
First Claim
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1. A light emitting diode (LED) comprising:

  • a first active region comprised of one or more current-injected layers for emitting photons when electrically biased in a forward direction; and

    a second active region, adjacent the first active region, comprised of one or more optically-pumped layers for emitting photons, wherein the optically-pumped layers are optically excited by the photons emitted by the current-injected layers, thereby recycling guided modes.

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