Slot-waveguide cavities for optical quantum information applications

Details Slot-waveguide cavities for optical quantum information applications Slot-waveguide cavities for optical quantum information applications

2009-03-13

arxiv.org/abs/0903.2308v2

Opt.Express.17:7295-7303,2009

Physics

Quantum Physics

9 pages, 4 figures (all in colour), minor revisions

Scientific paper

10.1364/OE.17.007295

To take existing quantum optical experiments and devices into more practical regimes requires the construction of robust, solid-state implementations. In particular, to observe the strong-coupling regime of atom-photon interactions requires very small cavities and large quality factors. Here we show that the slot-waveguide geometry recently introduced for photonic applications is also promising for quantum optical applications in the visible regime. We study diamond- and GaP-based slot-waveguide cavities (SWCs) compatible with diamond colour centres e.g. nitrogen-vacancy (NV) defect, and show that one can achieve increased single-photon Rabi frequencies of order O(10^11) Hz in ultra-small cavity modal volumes, nearly 2 orders of magnitude smaller than previously studied diamond-based photonic crystal cavities.

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