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.
@article{arxiv.0903.2308,
title = {Slot-waveguide cavities for optical quantum information applications},
author = {Mark P. Hiscocks and Chun-Hsu Su and Brant C. Gibson and Andrew D. Greentree and Lloyd C. L. Hollenberg and Francois Ladouceur},
journal= {arXiv preprint arXiv:0903.2308},
year = {2010}
}
Comments
9 pages, 4 figures (all in colour), minor revisions