Прегледај по Аутор "Pelemiš, S."

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    About Eigen-Problem of Single Photon Hamiltonian
    (Institute of Electrical and Electronics Engineers (IEEE), 2008) Delić, N. V.; Pelemiš, S.; Šetrajčić, J. P.
    Altered state of consciousness is a consequence of quantum change which is presented by photons. There is not exist adequate theory, to describe this phenomenon. Linearized single photon Hamiltonian is used for the analysis of its features in coordinate systems. It can be concluded that photon behavior is equally determined by its translation characteristics (impulse components) and its rotation characteristics expressed by way of spin operators.
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    Changes in Optical Properties of Molecular Nanostructures
    (Polish Academy of Sciences, 2010) Vucenovic, S. M.; Šetrajcic, J. P.; Markoski, B.; Mirjanic, D. Lj.; Pelemiš, S.; Škipina, B.
    This paper represents an overview about exciton systems in the molecular nanostructures (ultra thin films and superlattices) and their implications on optical properties, primarily on absorption coefficient, which is given in the form of dielectric permittivity. With utilization of Green’s function method, we have calculated dispersion law, spectral weight of exciton states and dielectric permittivity for every type of nanostructures. All obtained results are compared with optical properties in bulk crystals. Dielectric permittivity in all types of nanostructures shows very narrow and discrete dependence of external electromagnetic field frequency, which is a consequence of the expressed quantum effects, very thin thickness in these structures (or at least one dimension confinement) and boundary conditions.