Obiettivo
This project covers both experimental and theoretical problems related to innovative materials synthesis and deposition with lasers.
The experimental research will be as follows: the deposition of thin films and multilayer structures for magnetic field sensing, including amorphous magnetic thin films of typical composition FeCoNiB and films of semimagnetic semiconductors (CdMnTe and CdHgMnTe); formation of thin films and multilayer structures on silicon substrates and optical fibres and investigation of their basic magnetic characteristics; investigations on the kinetics of ceramic compound formation under reactive laser ablation of solid targets by excimer laser pulses; spectroscopic investigation of the laser plasma plume and correlation with deposit characteristics; investigation of the periodical submicron structure formation under resonant excitation of surface electromagnetic waves; laser-assisted formation of quantum size structures (quantum dots) with the help of holographical method and investigation of their optical properties.
The theoretical research is strictly related to the experimental research: the kinetics of laser-induced surface modification, including investigation of photophysical mechanisms in laser ablation of organic polymers and of kinetics and dynamics of non-equilibrium defects during fast laser crystallization; pulsed laser deposition of materials, including reactive ablation deposition; flip-over effect in PLD, stationary form of plasma plume, development of Rayleigh-Taylor instabilities and surface periodical structures; and the mechanism of laser-induced synthesis of surface compounds with excimer lasers, including investigation of the relative role of heterogeneous and homogeneous reactions, excited species within the plasma plume and investigations on fast melt mixing.
Argomento(i)
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73100 Lecce
Italia