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Phys Rev E Stat Nonlin Soft Matter Phys. 2008 Sep;78(3 Pt 2):035601. Epub 2008 Sep 4.

Experimental observation of Rabi splitting in effective near-zero-index media in the microwave regime.

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  • 1Pohl Institute of Solid State Physics, Tongji University, Shanghai 200092, China.


We report the observation of a strong coupling between an artificial "atom" and localized interface mode in the microwave regime. Transmittance is experimentally measured for the effective near-zero-index paired structures containing epsilon -negative and mu -negative materials made of composite right- and left-handed transmission lines. When the atom is embedded in the interface, because of the strong coupling between the atom and the interface mode, a Rabi splitting of 0.12GHz is observed, which is in good agreement with numerical simulations. Different from the usual Rabi splitting observed in conventional cavities, the splitting modes in the effective zero-index media are invariant with the scaling change of the length.

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