Demonstration of high-Q (>8600) three-dimensional photonic crystal nanocavity embedding quantum dots

Tandaechanurat, A.; Ishida, S.; Aoki, K.; Guimard, D.; Nomura, M.; Iwamoto, S.; Arakawa, Y.
April 2009
Applied Physics Letters;4/27/2009, Vol. 94 Issue 17, p171115
Academic Journal
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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