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. 2017 Jan 25;8:14144. doi: 10.1038/ncomms14144

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Copyright © 2017, The Author(s)

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(a,b) Plasmonic super-lattice in visible range and (c,d) natural hyperbolic medium in infrared range. (a) The effective hyperbolic model is compared with (b) a 40-layer multilayer system taking into account dissipation, dispersion and finite unit cell size. Atom A is 4 nm away from top interface, whereas atom B is adsorbed to the bottom interface with a horizontal displacement of x_b=5 nm. The inset shows the CLS dependence on atom B's horizontal displacement when λ=550 nm. Good agreement is seen between the EMT model and practical multilayer design paving the way for an experimental demonstration of the super-Coulombic effect with cold atoms. CLS for (c) two atoms above h-BN and (d) two atoms across an h-BN structure; dashed lines denote bulk vacuum results. It is noteworthy that a smaller spontaneous emission rate in the infrared range will contribute to a larger normalized CLS J_dd/γ_o. The orange and blue curves denote the two orientations of the transition dipole moment of the atoms. The total slab thickness for both structures is 100 nm.

Inline graphic — (a,b) Plasmonic super-lattice in visible range and (c,d) natural hyperbolic medium in infrared range. (a) The effective hyperbolic model is compared with (b) a 40-layer multilayer system taking into account dissipation, dispersion and finite unit cell size. Atom A is 4 nm away from top interface, whereas atom B is adsorbed to the bottom interface with a horizontal displacement of x_b=5 nm. The inset shows the CLS dependence on atom B's horizontal displacement when λ=550 nm. Good agreement is seen between the EMT model and practical multilayer design paving the way for an experimental demonstration of the super-Coulombic effect with cold atoms. CLS for (c) two atoms above h-BN and (d) two atoms across an h-BN structure; dashed lines denote bulk vacuum results. It is noteworthy that a smaller spontaneous emission rate in the infrared range will contribute to a larger normalized CLS J_dd/γ_o. The orange and blue curves denote the two orientations of the transition dipole moment of the atoms. The total slab thickness for both structures is 100 nm.