Journal article

Nanodiamond induced high-Q resonances in defect-free photonic crystal slabs

Snjezana Tomljenovic-Hanic, Andrew D Greentree, Brant C Gibson, Timothy J Karle, Steven Prawer



We demonstrate that a high-Q photonic crystal cavity can be induced by the presence of a nanodiamond (ND) on the air-hole side wall in an otherwise defect-free photonic crystal. The ND itself acts as the perturbation, increasing the average refractive index, necessary to define the cavity; therefore self-aligned with the cavity. Such cavities are potentially useful for exploiting cavity quantum electro-dynamic interactions between fluorescent NDs and the cavity. A single ND can induce a cavity with Q~3 × 10(4) and two or more ND particles can induce a cavity with Q~1.5 × 10(5). We show numerically that perturbing the position and the size of the NDs has little effect on the cavity properties..

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Awarded by Australian Research Council (ARC)

Awarded by ARC Australian Research Fellowship

Funding Acknowledgements

This work was produced with the assistance of the Australian Research Council (ARC) under the Discovery project scheme (project number DP1096288) and by an award under the Merit Allocation Scheme on the National Facility of the Australian Partnership for Advanced Computing. S. T-H. is supported by the ARC Australian Research Fellowship (project number DP1096288). A. D. G. acknowledges the support of an ARC QEII Fellowship (project number DP0880466).