Two field nonlinear Faraday rotation in rubidium vapor in a Doppler-free geometry

Drampyan, Rafael; Greentree, Andrew D. and Durrant, A. V. (2007). Two field nonlinear Faraday rotation in rubidium vapor in a Doppler-free geometry. Optics Communications, 276(2) pp. 251–260.

DOI: https://doi.org/10.1016/j.optcom.2007.04.027

Abstract

Nonlinear Faraday rotation with counter-propagating light beams was investigated in a rubidium vapor cell. Observations across all hyperfine and crossover resonances of the D-2 line of Rb-87 atoms were made. Additionally, rotation spectra as a function of pump and probe intensity, pump polarization and external magnetic field strength were studied. The investigations were performed in a regime where the pump beam power was sufficiently low relative to the probe power to avoid polarization rotation due to pump-induced anisotropy. Our results are analyzed in the context of Bennett structures and coherent optical processes. (c) 2007 Elsevier B.V. All rights reserved.

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