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Condition for resonant optical bistability Malyshev, Andrey ©2012 American Physical Society. Support from the project MOSAICO (FIS2006-01485), fruitful discussions with V. A. Malyshev, and the hospitality of the University of Groningen are gratefully acknowledged We address a two-level system in an environment interacting with an electromagnetic field in the dipole approximation. The resonant optical bistability induced by local-field effects is studied by considering the relationship between the population difference and the excitation field. The diversity of various systems is included by accounting for system self-action via the surface part of Green's dyadic in the general form. The bistability condition and the exact solution of the steady-state optical Bloch equations at the absolute bistability threshold are derived analytically. 2023-06-20T00:35:56Z 2023-06-20T00:35:56Z 2012-12-27 journal article 1050-2947 10.1103/PhysRevA.86.065804 https://hdl.handle.net/20.500.14352/42781 http://dx.doi.org/10.1103/PhysRevA.86.065804 https://journals.aps.org eng MOSAICO (FIS2006-01485) open access American Physical Society