2-D isotropic negative refractive index in a N-type four-level atomic system
Keyword(s):
Abstract2-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.
2013 ◽
Vol 816-817
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pp. 242-245
2012 ◽
Vol 59
(13)
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pp. 1133-1141
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2006 ◽
Vol 36
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pp. 6-11
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2007 ◽
Vol 363
(5-6)
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pp. 497-501
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2009 ◽
Vol 1
(6)
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pp. 521-527
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