Electromagnetically induced left-handedness in a dense gas of three-level atoms
Physical Review A - Atomic, Molecular, and Optical Physics
The American Physical Society
053806-1 - 053806-7
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Ways in which a three-level system can be used to change the frequency-dependent magnetic permeability of an atomic gas were discussed. The resulting macroscopic electrodynamics was also discussed. The two levels were separated at optical frequencies while having a nonvanishing magnetic dipole matrix element. It was found that such level splittings require large external magnetic fields.
Split ring resonators