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CLC number: O413

On-line Access: 2024-08-27

Received: 2023-10-17

Revision Accepted: 2024-05-08

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Journal of Zhejiang University SCIENCE A 2004 Vol.5 No.11 P.1322-1326

http://doi.org/10.1631/jzus.2004.1322


How to realize a negative refractive index material at the atomic level in an optical frequency range?


Author(s):  SHEN Jian-qi, RUAN Zhi-chao, HE Sai-ling

Affiliation(s):  Centre for Optical and Electromagnetic Research, Joint Research Centre of Photonics of the Royal Institute of Technology Sweden and Zhejiang University, Zhejiang University, Hangzhou 310027, China; more

Corresponding email(s):   jqshen@coer.zju.edu.cn, sailing@kth.se

Key Words:  Negative refractive index, Left-handed medium, Electromagnetically induced transparency, Atomic level, Optical frequency


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Abstract: 
The theoretical mechanism for realizing a negative refractive index material in an optical frequency range with an atomic gas system of electromagnetically induced transparency (EIT) is studied. It is shown that under certain conditions such a dense gas can exhibit simultaneously negative permittivity and negative permeability, and negligibly small loss.

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