Abstract
The authors report on an experimental demonstration of coupling of quantum dots with a point-defect nanocavity in woodpile three-dimensional (3D) photonic crystal (PhC) with the highest quality (Q) factor among those for 3D PhC cavities. The Q factor of more than 8600 was achieved by stacking 25 layers using a micromanipulation technique. The size of the square-shaped defect cavity was optimized to tune the cavity mode to the midgap frequency of the complete photonic bandgap to achieve high Q.
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