Patterned light emitting devices and extraction efficiencies related to the same
First Claim
1. A light-emitting device, comprising:
- a multi-layer stack of materials including a light-generating region and a first layer supported by the light-generating region so that, during use of the light-emitting device, light generated by the light-generating region can emerge from the light-emitting device via a surface of the first layer,wherein the light-emitting device has an edge which is at least about one millimeter long, and the light-emitting device is designed so that an extraction efficiency of the light-emitting device is substantially independent of the length of the edge; and
wherein the surface of the first layer has a dielectric function that varies spatially according to a pattern with an ideal lattice constant and a detuning parameter with a value greater than zero.
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Accused Products
Abstract
Light-emitting devices, and related components, systems and methods are disclosed. A light-emitting device can include a multi-layer stack of materials including a light-generating region and a first layer supported by the light-generating region. During use of the light-emitting device, light generated by the light-generating region can emerge from the light-emitting device via a surface of the first layer. The light-emitting device can have an edge which is at least about one millimeter long and can be designed so that an extraction efficiency of the light-emitting device is substantially independent of the length of the edge. The surface of the first layer may have a dielectric function that varies spatially according to a pattern. The pattern may be nonperiodic.
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Citations
72 Claims
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1. A light-emitting device, comprising:
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a multi-layer stack of materials including a light-generating region and a first layer supported by the light-generating region so that, during use of the light-emitting device, light generated by the light-generating region can emerge from the light-emitting device via a surface of the first layer, wherein the light-emitting device has an edge which is at least about one millimeter long, and the light-emitting device is designed so that an extraction efficiency of the light-emitting device is substantially independent of the length of the edge; and wherein the surface of the first layer has a dielectric function that varies spatially according to a pattern with an ideal lattice constant and a detuning parameter with a value greater than zero. - 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, 30, 33)
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29. A light-emitting device, comprising:
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multi-layer stack of materials including a light-generating region and a first layer supported by the light-generating region so that, during use of the light-emitting device, light generated by the light-generating region can emerge from the light-emitting device via a surface of the first layer, wherein the light-emitting device has an edge which is at least about one millimeter long, and the light-emitting device is designed so that an extraction efficiency of the light-emitting device is substantially independent of the length of the edge; wherein the first layer comprises a semiconductor material and a surface of the first layer has a dielectric function that varies spatially according to a nonperiodic pattern comprising a plurality of non-concentric holes, a majority of the non-periodic pattern having order; and wherein the light emerging from the light-emitting device via the surface of the first layer is substantially incoherent. - View Dependent Claims (31, 32, 34, 35, 36, 37, 38, 39, 40, 41, 69, 70)
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42. A light-emitting device, comprising:
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a multi-layer stack of materials including a light-generating region and a first layer supported by the light-generating region so that, during use of the light-emitting device, light generated by the light-generating region can emerge from the light-emitting device via a surface of the first layer, wherein the light-emitting device has an edge which is at least about one millimeter long, and the light-emitting device is designed so that an extraction efficiency of the light-emitting device is substantially independent of the length of the edge; and wherein the first layer comprises a semiconductor material and a surface of the first layer has a dielectric function that varies spatially according to a nonperiodic pattern comprising holes being devoid of material within a perimeter defined by the first layer, a majority of the nonperiodic pattern having order. - View Dependent Claims (43, 44, 45, 46, 47, 48, 49, 50, 71, 72)
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51. A light-emitting device, comprising:
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a multi-layer stack of materials including a light-generating region and a first layer supported by the light-generating region so that, during use of the light-emitting device, light generated by the light-generating region can emerge from the light-emitting device via a surface of the first layer, wherein the light-emitting device has an edge which is at least about one millimeter long, and the light-emitting device is designed so that an extraction efficiency of the light-emitting device is substantially independent of the length of the edge; wherein the first layer comprises a semiconductor material and a surface of the first layer has a dielectric function that varies spatially according to a nonperiodic pattern comprising a plurality of non-concentric holes; and wherein the non-periodic pattern is configured so that light emerging from the light-emitting device via the first surface is more collimated than a lambertian distribution of light. - View Dependent Claims (52, 53, 54, 55, 56, 57, 58)
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59. A light-emitting device, comprising:
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a multi-layer stack of materials including a light-generating region and a first layer supported by the light-generating region so that, during use of the light-emitting device, light generated by the light-generating region can emerge from the light-emitting device via a surface of the first layer, wherein the light-emitting device has an edge which is at least about one millimeter long, and the light-emitting device is designed so that an extraction efficiency of the light-emitting device is substantially independent of the length of the edge; and wherein the first layer comprises a semiconductor material and a surface of the first layer has a dielectric function that varies spatially according to a nonperiodic pattern comprising features, a majority of the features having substantially the same size and a majority of the nearest neighbor distances between features being substantially the same. - View Dependent Claims (60, 61, 62, 63, 64, 65, 66, 67, 68)
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Specification