Journal of Zhejiang University-SCIENCE A

, Volume 5, Issue 11, pp 1322–1326

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

Science Letters


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.

Key words

Negative refractive index Left-handed medium Electromagnetically induced transparency Atomic level Optical frequency 

Document code

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Copyright information

© Zhejiang University Press 2004

Authors and Affiliations

  1. 1.Centre for Optical and Electromagnetic Research, Joint Research Centre of Photonics of the Royal Institute of Technology (Sweden) and Zhejiang UniversityZhejiang UniversityHangzhouChina
  2. 2.Laboratory of Photonics and Microwave Engineering, Department of Microelectronics and Information TechnologyRoyal Institute of TechnologyKistaSweden

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