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Small slot waveguide rings for on-chip quantum optical circuits

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Rotenberg,  Nir
Sandoghdar Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Tuerschmann,  Pierre
Sandoghdar Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Haakh,  Harald R.
Sandoghdar Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Cano,  Diego-Martin
Sandoghdar Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Goetzinger,  Stephan
Sandoghdar Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Sandoghdar,  Vahid
Sandoghdar Division, Max Planck Institute for the Science of Light, Max Planck Society;

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引用

Rotenberg, N., Tuerschmann, P., Haakh, H. R., Cano, D.-M., Goetzinger, S., & Sandoghdar, V. (2017). Small slot waveguide rings for on-chip quantum optical circuits. Optics Express, 25, 5397-5414. doi:10.1364/OE.25.005397.


引用: https://hdl.handle.net/21.11116/0000-0000-8577-4
要旨
Nanophotonic interfaces between single emitters and light promise to enable new quantum optical technologies. Here, we use a combination of finite element simulations and analytic quantum theory to investigate the interaction of various quantum emitters with slot-waveguide rings. We predict that for rings with radii as small as 1.44 mu m, with a Q-factor of 27,900, near-unity emitter-waveguide coupling efficiencies and emission enhancements on the order of 1300 can be achieved. By tuning the ring geometry or introducing losses, we show that realistic emitter-ring systems can be made to be either weakly or strongly coupled, so that we can observe Rabi oscillations in the decay dynamics even for micron-sized rings. Moreover, we demonstrate that slot waveguide rings can be used to directionally couple emission, again with near-unity efficiency. Our results pave the way for integrated solid-state quantum circuits involving various emitters. (C) 2017 Optical Society of America