White, single or multi-color light emitting diodes by recycling guided modes
First Claim
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 within the LED.
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Abstract
A white, single or multi-color light emitting diode (LED) includes a mirror for reflecting photons within the LED; a first active region, adjacent the mirror, including one or more current-injected layers for emitting photons when electrically biased in a forward direction; a second active region, adjacent the first active region, including 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; and an output interface, adjacent the second active region, for allowing the photons emitted by the optically-pumped layers to escape the LED as emitted light.
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Citations
52 Claims
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1. A light emitting diode (LED), comprising:
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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 within the LED. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method of creating a light emitting diode (LED), comprising:
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creating a first active region comprised of one or more current-injected layers for emitting photons when electrically biased in the forward direction; and creating 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 within the LED. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A white, single or multi-color light emitting diode (LED), comprising:
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a minor for reflecting photons within the LED; a first active region, adjacent the mirror, comprised of one or more current-injected layers for emitting photons when electrically biased in a forward direction; 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 within the LED; and an output interface, adjacent the second active region, for allowing the photons emitted byte optically-pumped layers to escape the LED. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52)
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Specification