Electromagnetically induced absorption and transparency in magneto-optical resonances in elliptically polarized field

Abstract

Using a 1 to 2 transition as an analytically tractable model, we discuss in detail magneto-optical resonances of both EIA (electromagnetically induced absorption) and EIT (electromagnetically induced transparency) types in the Hanle configuration. The analysis is made for arbitrary rate of depolarizing collisions in the excited state and arbitrary elliptical field polarization. The obtained results clearly show that the main reason for the EIA sub-natural resonance is the spontaneous transfer of anisotropy from the excited level to the ground one. In the EIA case we predict the negative structures in the absortpion resonance at large field detuning. The role of the finite atom-light interaction time is briefly discussed. In addition we study non-trivial peculiarities of the resonance lineshape related to the velocity spread in a gas.

version #2; revtex 4; 27 pages, 6 eps figures

References in corpus (11)

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Cited by in corpus (8)

• Features of Magneto-Optical Resonances in an Elliptically Polarized Traveling Light Wave
• Magneto-optical resonance of electromagnetically induced absorption with high contrast and narrow width in a vapour cell with buffer gas
• Polarization dependent tuning of the Hanle effect in the ground state of Cs
• Ground-state magneto-optical resonances in Cesium vapour confined in an extremely thin cell
• Level-crossing resonances on open atomic transitions in a buffered Cs vapor cell: Linewidth narrowing, high contrast and applications to atomic magnetometry
• A relation between electromagnetically induced absorption resonances and nonlinear magneto-optics in Lambda-systems
• Unveiling photon-photon coupling induced transparency and absorption
• Coherent and incoherent processes responsible for various characteristics of nonlinear magneto-optical signals in rubidium atoms