Probe-field spectroscopy under conditions of self-saturation |
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| Authors: | S. G. Rautian É. G. Saprykin A. A. Chernenko |
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| Affiliation: | (1) Lebedev Physical Institute, Russian Academy of Sciences, Moscow, 119991, Russia;(2) Institute of Automation and Electrometry, Siberian Division, Russian Academy of Sciences, Novosibirsk, 630090, Russia;(3) Novosibirsk State University, Novosibirsk, 630090, Russia;(4) Institute of Semiconductor Physics, Siberian Division, Russian Academy of Sciences, Novosibirsk, 630090, Russia |
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| Abstract: | Nonlinear absorption of a probe field is analyzed taking into account intrinsic spontaneous radiation (the self-saturation effect). Systems of two and three nondegenerate levels, as well as a system of two levels with the angular momenta equal to unity, are considered. Changes produced by the self-saturation in the population, polarization, and nonlinear interference effects, as well as in the field splitting of lines, are determined. In certain situations, incoherent spontaneous radiation enhances the interference phenomena. |
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