Domains correspond to equivalent states of different circular polarization of light.
This process is dominated by the motion of domain walls and other defects. It is in this context that seminal ideas of selfsimilar evolution and dynamical scaling were introduced for nonequilibrium processes. Asymptotic domain growth laws, with their underlying physical mechanisms, have been well established, and dynamical scaling has been generally demonstrated. Such bright light spots are being actively considered for applications in parallel optical processing. In addition, the question of dynamical scaling has, in general, not been addressed.