Thermal profiles resulting from a laser‐induced melt‐quench cycle of a Te‐based chalcogenide film on Mylar have been determined. These data are combined with experimentally obtained crystallization rates of Weiseret al.to determine the extent ofcrystallizationthat may occur in regions adjacent to the laser‐produced amorphous region. A maximum fractional crystallization of less than 10−2is found which indicates that no crystalline halo is expected to surround such an amorphous region. Thus, the extent to which photocrystallization plays a role in these alloy materials appears still to be an unanswered question.