Fluctuations of the Ice-Water Interface during Solidification

Abstract

The dynamics of the freezing process is studied at the surface of a growing ice single crystal. Light ($\ensuremath{\lambda}=488$ nm) is scattered by fluctuations of the nonequilibrium interface. The linewidth of the scattered light is proportional to the square of the scattering vector. For a scattering angle of 90\ifmmode^\circ\else\textdegree\fi{} one measured about 2 krad/s. The intensity depends on the growth rate and shows a hysteresis in that dependence.