Pulsed laser assisted recrystallisation of monocrystalline InSb surfaces

Phase transformations in InSb irradiated by excimer and ruby lasers are stu died both theoretically and experimentally. Thermal equilibrium and non-equ ilibrium one-component models are employed for the theoretical analysis of time-resolved reflectivity measurements. For ruby laser, a close similarity between the experimental and calculated values of surface melt duration is observed. However, contrary to this the theoretical predictions for excime r laser differ substantially from experimental values. This fact is interpr eted in terms of the amorphisation and decomposition of the surface layer a fter excimer laser irradiation, as shown by LEED/AES. (C) 1999 Elsevier Sci ence B.V. All rights reserved.