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Electromagnetically induced negative refractive index in a V-type four-level atomic system

Hongjun Zhang, Yueping Niu, Shangqing Gong

Physics Letters ANov 17, 200625 citations

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High refractive index and lasing without inversion in an open four-level atomic system

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Left-Handedness in a Four-Level Atomic System: Quantum Coherence, Electromagnetically Induced Transparency and Negative Refraction

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Electromagnetically induced negative refractive index in a V-type four-level atomic system

张红军, 钮月萍, 龚尚庆

We propose a scheme for realizing negative refractive index in a V-type four-level atomic system. It is shown that the negative refractive index can be achieved in a wide frequency band based on the effect of quantum coherence. It is also found that the frequency band of negative refractive index and the absorption property of left-handed material are manipulated by the pump and control fields. Furthermore, left-handed material with reduced absorption is possible by choosing appropriate parameters. (c) 2006 Elsevier B.V. All rights reserved.We propose a scheme for realizing negative refractive index in a V-type four-level atomic system. It is shown that the negative refractive index can be achieved in a wide frequency band based on the effect of quantum coherence. It is also found that the frequency band of negative refractive index and the absorption property of left-handed material are manipulated by the pump and control fields. Furthermore, left-handed material with reduced absorption is possible by choosing appropriate parameters. (c) 2006 Elsevier B.V. All rights reserved.

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Chirality and Negative Refraction without Absorption in the Optical Domain Using Electromagnetically Induced Transparency

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量子光学学报Jan 1, 20060 citations

Algebraic analysis of electromagnetic chirality-induced negative refractive index in a four-level atomic system

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