| 摘要 |
A photon source includes a substrate, an active region formed above the substrate, and a pair of electrodes configured to provide an injection current which passes through the active region. The active region includes a quantum dot layer including one or more AlyGaxIn1-x-yN quantum dots, where 0≦̸x≦̸1 and 0≦̸y≦̸<1, and an AlInN current confinement layer adjacent the quantum dot layer. The current confinement layer has an aperture which defines a low resistance path for the injection current to flow through the active region between the pair of electrodes. The quantum dot layer includes less than 50 quantum dots within the aperture as projected onto the quantum dot layer.
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