Recent work on Lambda-resonances in alkali metal vapors (E. Mikhailov, I.Novikova, Yu. V. Rostovtsev, and G. R. Welch, quant-ph/0309171, and referencestherein) investigated a type of electromagnetically induced absorptionresonance that occurs in three-level systems under specific conditions normallyassociated with electromagnetically induced transparency. In this note, we showthat these resonances have a direct analog in nonlinear magneto-optics, andsupport this conclusion with a calculation for a J=1->J'=0 system interactingwith a single nearly circularly polarized light field in the presence of a weaklongitudinal magnetic field.
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