  Exchange of energy by means of light-matter interaction provides a new
dimension to various nonlinear dynamical systems. Here, the effects of
light-matter interaction are investigated for a situation, where two
counter-propagating, orthogonally polarized laser pulses are incident on the
atomic condensate. It's observed that a localized laser pulse profile can
induce localized modes in Bose-Einstein condensate. A stability analysis
performed using Vakhitov-Kolokolov-like criterion has established that these
localized modes are stable, when the atom-atom interaction is repulsive. The
cooperative effects of light-matter interactions and atom-atom interactions on
the Lieb-mode have been studied in the stable region through atomic dispersion,
revealing the signature of bound state formation when the optical potential is
P\"oschl-Teller type. The energy diagram also indicates a continuous transfer
of energy from the laser pulses to the atoms as the light-matter interaction
changes its sign.
