Deposition and characterization of thin films
Studies of physical vapour deposition of materials (PVD) - vacuum evaporation, ion sputtering and reactive deposition for te growth of a variety of thin film materials, from metals to dielectrics, as well as hard and protective coatings; characterization of their properties. The influence of the primary Ar + ion beam energy (1-2 keV), energy of sputtered particles and scattered neutrals to the resistivity, crystallite size and preferential orientation of the thin film are investigated. The main aim of the research is to understand relation between the thin film synthesis using hyperthermal ions and atoms, and the structure/composition and different properties of metal and nitride thin films.
D. Peruško, N. Popović, Ž. Bogdanov, I. Radović, B. Gaković, M. Milosavljević, B. Goncić
Interaction of ion beams with solid state surfaces in the keV energy region
Different gas ions as well as alkali ions are used in these experiments. In the frame of the home-made UHV experimental setup employed in these investigations, surface analytical techniques LEIS (Low Energy Ion Scattering) and DRS (Direct Recoil Spectroscopy) are operative while the realizations of SIMS (Secondary Ion Mass Spectroscopy) and MSRI (Mass Spectroscopy of Recoiled Ions) are in the last phase. Realization of the system for the thin film deposition by ion sputtering on the same device is planned in the near future.
N. Bundaleski, Z. Rakočević, M. Radović, Z. Ristić
Ion beam modification of materials
Ion implantation of metals and semiconductors, synthesis of nano-precipitates, formation of metastable phases, ion beam induced interaction of components in thin film structures.
N. Bibić, V. Milinović, D. Peruško, I. Radović, M. Milosavljević
Ion beam analysis
Use of light ions, H and He, in the MeV energy range for structural characterization of materials by Rutherford backscattering (RBS) and elastic backscattering (EBS) spectroscopy.
M. Milosavljević, N. Bibić, V. Milinović, I. Radović
Pulsed Laser Beam Modification of Materials - Bulk and Thin Solid Films
Investigation of physical phenomena associated with laser beams - solid state material interaction; Surface modification of materials (metals, ceramics and semiconductors- in thin films or bulk form) with short-pulse laser beams, on micro- and nano-meter scale. T he physics of materials under extreme conditions and laser-plasma interactions in general.
B. Gaković, T. Nenadović, S. Petrović, Z. Ristić
Electron microscopy
Micro and nano structural characterization of materials by transmission electron microscopy (TEM), scanning electron microscopy (SEM), electron microprobe (EPMA) and dispersive electron spectroscopy (EDX).
N. Bibić, N. Popović, Ž, Bogdanov, M. Popović, M. Novaković, M. Milosavljević
Transport theory of ion, electron and X-ray reflection from solid surfaces
Theoretical methods for investigation fo the ion, electron and X-ray reflection from solid surfaces were developed in the broad energy region. They encompass analytical solving of the Boltzman transport equation as well as specially adopted Monte Carlo simulations. The obtained results are applied concerning the problems in nanotechnologies and radiation protection.
Complex phenomena in fusion plasmas
Within this topic we investigate: 1) phenomena of self-organization in high-temperature fusion plasmas, in particular, models, structures and transport processes, 2) new hydrodynamics models for instabilities and transport in fusion and astrophysical plasmas, based upon the Landau fluid, MHD and Gyro-Landau models, with the application in 2D Langmiur turbulence and nonlinear electro-acoustic waves, 3) internal transport barriers in toroidal plasmas and large localized stationary - Zonal Flows and Streamers in drift turbulence and 4) dynamics and interaction of relativistic solitons in intense laser-plasmas interactions. We apply the approximate analytical methods combined with the methods of nonlinear dynamics (bifurcation analysis), statistical physics, numerical codes based upon the fluid, MHD, kinetic models together with 1-3D particle simulations (PIC).
Nonlinear phenomena in photonic lattices and Bose-Einstein condensates
Study of modulational instability and intrinsically localized discrete localized modes (solitons & breathers) in one-dimensional and two-dimensional nonlinear photonic lattices (nonlinear fiber/waveguide arrays, photonic crystals) and Bose-Einstein condensates. Study of soliton complexes and soliton interactions in discrete media with cubic, saturable, cubic-quintic, nonpolynomial, and resonant nonlinearity. Application of solitons in all-optical devices (amplifiers, switches, routers, dividers, sensors,...) and all-optical networks. Recently we have started to study problems related to nanophotonics and left-handed metamaterials.
M. Stepić, Lj. Hadžievski , G. Gligorić, P. Beličev, I. Ilić, A. Daničić, N. Raičević