2-D isotropic negative refractive index in a N-type four-level atomic system
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 simultaneo...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2015-11-01
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| Series: | Open Physics |
| Subjects: | |
| Online Access: | http://www.degruyter.com/view/j/phys.2015.13.issue-1/phys-2015-0043/phys-2015-0043.xml?format=INT |
| Summary: | 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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| ISSN: | 2391-5471 |