MECHANISMS OF FORMATION OF A DISTURBED LAYER IN P-TYPE CDTE UNDER THEACTION OF NANOSECOND LASER-PULSES

The low-temperature photoluminescence spectra were determined before a nd after exposure of p-type CdTe to nanosecond ruby laser pulses of po wer density below that needed to melt the material. An increase in the laser radiation dose resulted in accumulation of mechanical stresses in the surface layers and when the plasticity threshold of the crystal was reached, a dislocation network was formed and it facilitated stre ss relaxation.