Перегляд за автором "Kovalenko, S.A."

Сортувати за: Порядок: Результатів:

  • Comparison of the synthesis routes for the ZnO/porous silica nanocomposite 
    Rudko, G.Yu.; Kovalenko, S.A.; Gule, E.G.; Bobyk, V.V.; Solomakha, V.M.; Bogoslovskaya, A.B. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2016)
    ZnO/porous silica nanocomposites were successfully fabricated by three different types of synthesis techniques. In all cases, the molecular sieve SBA-16 was used as a porous matrix. The in situ growth the nanoparticles of ...
  • Descartes-Snell law of refraction with absorption 
    Kovalenko, S.A. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2001)
    The state of the art in the theory of optical constants of matter is considered for different spectral ranges of light absorption. It is stressed that up to now no there exists no commonly accepted formula for calculation ...
  • Dimensional effects in thin gold films 
    Kovalenko, S.A. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2000)
    Research results of optical constants of thin gold films of different thickness are given in the paper. Their structure was studied using atomic-force microscope. Values of refraction n and absorption k coefficients were ...
  • Optical properties of thin gold film 
    Kovalenko, S.A.; Fedorovych, R.D. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2000)
    Results of studing optical constants of thin gold films are given. The values of refraction and extinction coefficients (n, æ, respectively) are calculated from reflection and transmission spectra accordingly to traditional ...
  • Optical properties of thin metal films 
    Kovalenko, S.A. (Semiconductor Physics Quantum Electronics & Optoelectronics, 1999)
    Optical constants of metallic thin films made from: Ag, Au, Hf, Ir, Mo, Nb, Os, Pd, Pt, Re, Rh, Ru, Ta, W, Zr were determined on the basis of measured index of refraction in region of wavelength λ = 241216 Å. Two types ...
  • Optical size effects in thin gold films 
    Kovalenko, S.A.; Lisitsa, M.P. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2002)
    The optical size effects that appear in thickness dependencies of refraction (n) and absorption (k) indexes, Brewster's quasiangle and dielectric constant e2 in thin gold films are discussed. All of them have oscillating ...
  • Thickness dependences of optical constants for thin layers of some metals and semiconductors 
    Kovalenko, S.A.; Lisitsa, M.P. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2001)
    The review comprises investigations devoted to determination of refractive index and absorption coefficient dependences on thickness for thin films of metals and atomic semiconductors. It has been shown that erroneous ...
  • Zinc oxide nanoparticles fabricated in the porous silica matrix by the sublimation method 
    Rudko, G.Yu.; Kovalenko, S.A.; Gule, E.G.; Bobyk, V.V.; Solomakha, V.M.; Bogoslovskaya, A.B. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2015)
    The nanocomposite – nanoporous silica (SBA-16) containing ZnO quantum dots – was fabricated by the sublimation method. This novel route of synthesizing ZnO nanoparticles implies physical sorption of zinc acetylacetonate ...