Controlled polarization rotation of an optical field in multi-Zeeman-sublevel atoms

Abstract

We investigate, both theoretically and experimentally, the phenomenon of polarization rotation of a weak, linearly-polarized optical (probe) field in an atomic system with multiple three-level electromagnetically induced transparency (EIT) sub-systems. The polarization rotation angle can be controlled by a circularly-polarized coupling beam, which breaks the symmetry in number of EIT subsystems seen by the left- and right-circularly-polarized components of the weak probe beam. A large polarization rotation angle (up to 45 degrees) has been achieved with a coupling beam power of only 15 mW. Detailed theoretical analyses including different transition probabilities in different transitions and Doppler-broadening are presented and the results are in good agreements with the experimentally measured results.

28pages, 12figures

References in corpus (4)

• Resonant nonlinear magneto-optical effects in atoms
• Laser Field Induced Birefringence and Enhancement of Magneto-optical Rotation
• Laser induced birefringence in a wavelength-mismatched cascade system of inhomogeneously broadened Yb atoms
• Laser induced breakdown of the magnetic field reversal symmetry in the propagation of unpolarized light

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• Birefringence lens effects of atom ensemble enhanced by electromagnetically induced transparency
• Magneto optical rotation in a GaAs Quantum Well Waveguide
• Optically controlled waveplate at a telecom wavelength using a ladder transition in Rb atoms for all-optical switching and high speed Stokesmetric Imaging
• Electromagnetically induced transparency with degenerate atomic levels
• Polarization induced interference within electromagnetically induced transparency for atoms of double-V linkage