2D isotropic negative permeability in a Λ-type three-level atomic system

Abstract

A approach for two-dimensional(2D) negative permeability in a $\Lambda$-type three-level atomic system interacting with a probe magnetic and the superposition of two orthogonal standing-wave fields is proposed. Through the theoretical analysis and numerical simulation, two equally and tunable peak maxima of negative magnetic responses are observed in the x-y plane, and around the peak maxima region the negative permeability is isotropic. A new avenue to 2D isotropic negative

5 pages, 4 figures

References in corpus (4)

• Tunable negative refraction without absorption via electromagnetically induced chirality
• Negative refraction without absorption via both coherent and incoherent fields in a four-level left-handed atomic system
• Effect of spontaneously generated coherence on left-handedness in a degeneracy atomic system
• Electromagnetic chirality-induced negative refraction with the same amplitude and anti-phase of the two chirality coefficients