  Deflection of atoms in \Lambda-type configuration passing through two crossed
standing light waves is proposed for probing and visualization of atomic
superposition states. For this goal, we use both the large-dispersive and
Raman-resonant regimes of atom-field interaction giving rise to a
position-dependent phase shifts of fields and perform double simultaneous
spatial measurements on an atom. In this way, it is demonstrated that the
deflection spatial patterns of atoms in \Lambda-configuration passing through
modes of standing waves are essentially modified if the atoms are initially
prepared in a coherent superposition of its low levels states as well as when
the superposition states are created during the process of deflection. The
similar results take place for the joint momentum distribution of atoms.
Further, considering both one-photon and two-photon excitation regimes of
\Lambda-atoms we also illustrate that the two-dimensional patterns of defected
atoms qualitatively reflects the efficiency of the Raman processes.
