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arXiv · 1610.01046

Engineering chiral light--matter interaction in photonic crystal waveguides with slow light

Sahand Mahmoodian·Kasper Prindal-Nielsen·Immo Söllner·Søren Stobbe·Peter Lodahl
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Abstract

We design photonic crystal waveguides with efficient chiral light--matter interfaces that can be integrated with solid-state quantum emitters. By using glide-plane-symmetric waveguides, we show that chiral light-matter interaction can exist even in the presence of slow light with slow-down factors of up to $100$ and therefore the light--matter interaction exhibits both strong Purcell enhancement and chirality. This allows for near-unity directional $β$-factors for a range of emitter positions and frequencies. Additionally, we design an efficient mode adapter to couple light from a standard nanobeam waveguide to the glide-plane symmetric photonic crystal waveguide. Our work sets the stage for performing future experiments on a solid-state platform.

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Sahand Mahmoodian, Kasper Prindal-Nielsen, Immo Söllner, Søren Stobbe, Peter Lodahl. 2016-10-04. Engineering chiral light--matter interaction in photonic crystal waveguides with slow light. https://doi.org/10.1364/ome.7.000043

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