We present the experimental and theoretical results of the study of laser modification of the solid phase of thin epitaxial films of lead telluride under continuous irradiation. An ensemble of nanoparticles with bimodal distribution depending on the laser power, beam diameter, and scanning rate of the surface is formed under laboratory conditions The process of the laser heating of a thin film is simulated, and the change in the temperature field, depending on the conditions of laser exposure, is described. The experimental results are interpreted based on the defect–deformation theory of the formation of a bimodal ensemble of nanoparticles under continuous laser irradiation. The diffusion model of cluster growth in the bulk and on the surface of a thin film demonstrates the possibility of forming a bimodal size distribution of clusters.

We have studied a solid-state laser modification of the surface of PbX semiconductor films under processes of self-organization for conditions when photon energies are above the band gap of the semiconductor. Experimental data were used to construct a model for defect deformation instability developing on the surface of epitaxial film through strain-induced drift of laser-induced point defects. The model is capable to describe qualitatively observed surface morphology and to predict the surface profile in laser modification experiments. It has been demonstrated that used approach is applied to analyze ant structure with various morphology which depends on parameters of laser action. By changing the electro-physical properties of the created structures in necessary direction we have a good opportunity to fabricate the new devices for optoelectronics and photonics of different kind. (C) 2014 The Authors. Published by Elsevier B.V.

We present the results of laser production of semiconductor nanoparticles under continuous laser action in the near-infrared range (up to 106 W cm(-2)) on PbTe samples in air and liquid. We also present a method for forming nanoparticles on the surface of thin PbTe films and consider drop deposition for setting PbTe quantum dots on a substrate. Using a simulation model we describe the features of forming a deposited layer in the process of drop evaporation.

We study the formation and deposition of clusters of nanoparticles from colloidal systems onto a support surface as a result of local pulse laser impact. The processes of abnormal diffusion influencing the formation of relief due to changes in the diffusion coefficient near surface irregularities are analyzed. Numerical simulation is performed for the mechanism of deposition of particles from the colloidal system as a result of local laser impact.