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Two-photon double-beam optical bistability in the dispersive regime

Abstract : We report the observation and theoretical interpretation of two-photon double-beam optical bistability, where the nonlinearity is obtained in a two-photon transition in a sodium atomic beam. The experimental results, obtained in the dispersive regime, are compared with a simple crossed-phase-modulation model, and also with a numerical solution of the interaction between the cavity fields and three-level atoms, using the optical Bloch equations. For a wide range of parameters, both models agree with the experimental results. Oscillatory regimes may also appear, in agreement with the predictions of the complete model.
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Philippe Grangier, Jean-François Roch, Gérard Roger, L. A. Lugiato, E.M. Pessina, et al.. Two-photon double-beam optical bistability in the dispersive regime. Physical Review A, American Physical Society, 1992, 46, pp.2735-2743. ⟨10.1103/PhysRevA.46.2735⟩. ⟨hal-00559091⟩



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