Semiconductor Physics, Quantum Electronics & Optoelectronics, 21 (2), P. 195-199 (2018).
DOI: https://doi.org/10.15407/spqeo21.02.195

Optical properties of nanocomposite materials based on plasmon nanoparticles
I.Ya. Yaremchuk1, V.M. Fitio1, T.O. Bulavinets1, Y.V. Bobitski1,2

1Department of Photonics, Lviv Polytechnic National University, 12, Bandera Str., 79013 Lviv, Ukraine Phone: 8-032-2582581, e-mail: iryna.y.yaremchuk@lpnu.ua
2Faculty of Mathematics and Natural Sciences, University of Rzeszow, Pigonia Str.1, 35959 Rzeszow, Poland

Abstract. In this work, optical properties of nanocomposite materials based on plasmon metallic spherical nanoparticles have been studied. The authors have compared four different effective theories that take into account the size dispersion, interaction between nanoparticles and extrinsic size effect for calculation of the effective refractive index of Au, Ag and Cu nanoparticles in polymer. It has been demonstrated that size distribution induces an inhomogeneous broadening and change in the amplitude of plasmon band. The lowest shift of resonance characteristics has been observed for copper based nanocomposite for all the effective theories. It has been shown that the same nanocomposite material but with other parameters (size and concentration of inclusions) can be described by the different effective theories.

Keywords: nanocomposite, effective refractive index, plasmon nanoparticles.

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