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BY-NC-ND 3.0 license Open Access Published by De Gruyter Open Access November 30, 2015

2-D isotropic negative refractive index in a N-type four-level atomic system

Shun-Cai Zhao, Qi-Xuan Wu and Kun Ma
From the journal Open Physics

Abstract

2-D(Two-dimensional) isotropic negative refractive index (NRI) is explicitly realized via the orthogonal signal and coupling standing-wave fields coupling the Ntype four-level atomic system. Under some key parameters of the dense vapour media, the atomic system exhibits isotropic NRI with simultaneous negative permittivity and permeability (i.e. left-handedness) in the 2-D x-y plane. Compared with other 2-D NRI schemes, the coherent atomic vapour media in our scheme may be an ideal 2-D isotropic NRI candidate and has some potential advantages, significance or applications in the further investigation.

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Received: 2015-5-23
Accepted: 2015-10-6
Published Online: 2015-11-30

©2015 S.-C. Zhao et al.

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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