  We consider the problem of optical imaging of small nonlinear scatterers in
random media. We propose an extension of coherent interferometric imaging
(CINT) that applies to scatterers that emit second-harmonic light. We compare
this method to a nonlinear version of migration imaging and find that the
images obtained by CINT are more robust to statistical fluctuations. This
finding is supported by a resolution analysis that is carried out in the
setting of geometrical optics in random media. It is also consistent with
numerical simulations for which the assumptions of the geometrical optics model
do not hold.
