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Description:
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Nonlinear magneto -optical effects , originated from atomic coherence , are studied both theoretically and experimentally in thermal Rb vapor . The analytical description of the fundamental properties of coherent media are based on the simplified three - and four -level systems , and then verified using numerical simulations and experimental measurements . In particular , we analyze the modification of the long -lived atomic coherence due to various physical effects , such as reabsorption of
spontaneous radiation , collisions with a buffer gas atoms , etc . We also discuss the importance of the high -order nonlinearities in the description of the polarization rotation for the elliptically polarized light . The effect of self -rotation of the elliptical polarization is also analyzed .
Practical applications of nonlinear magneto -optical effects are considered in precision metrology and magnetometery , and for the generation of non -classical states of electromagnetic field . |