Dielectric colloid particles prefer occupying the intensity maxima of an ap
plied stationary interference pattern of laser beams. A 2-d system of collo
idal liquid freezes to form a triangular lattice structure when the externa
l laser modulation is in 1-d and the period of the intensity maxima is comm
ensurate to that of the triangular lattice. In this article we review our r
ecent simulation results on this phenomenon of laser-induced freezing.