We consider some peculiarities of the evolution of processes of stimulated
scattering in liquid transparent particles in the presence of ponderomotive
action of a light field. We observed the occurrence of sharp deformations
in the Descartes ring zone, which exceeds by more than 1 order of magnitude
the deformations of the remaining particle surface. Investigation of the d
ynamics of the evolution of droplet deformations has made it possible to co
nsider these deformations as the main cause of suppression of stimulated sc
attering indicated in the experiments. An analytical expression was derived
to evaluate the decrease of the Q factor of droplet quasi-normal eigenmode
s caused by perturbation of the particle shape from the spherical. Our stud
y revealed that the larger the Q factor of the droplet eigenmodes, the grea
ter the influence of surface deformation. (C) 2000 Optical Society of Ameri
ca OCIS codes: 190.3970, 290.5850, 290.5890, 290.5900, 290.5910.