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