  We propose the use of the subwavelength localization via adiabatic passage
technique for fluorescence microscopy with nanoscale resolution in the far
field. This technique uses a {\Lambda}-type medium coherently coupled to two
laser pulses: the pump, with a node in its spatial profile, and the Stokes. The
population of the {\Lambda} system is adiabatically transferred from one ground
state to the other except at the node position, yielding a narrow population
peak. This coherent localization allows fluorescence imaging with nanometer
lateral resolution. We derive an analytical expression to asses the resolution
and perform a comparison with the coherent population trapping and the
stimulated-emission-depletion techniques.
