Dielectric Permeability of Nanocylinder
S. Jaćimovskia, V. Sajfertb, D. Rakovićc and B. Tošićd
a Academy of Criminalistic and Police Studies, 196 Cara Dusana St., 11080 Belgrade, Serbia
b Technical Faculty "M. Pupin", University of Novi Sad, Zrenjanin, Serbia
c Faculty of Electrical Engineering, University of Belgrade, Serbia
d Vojvodina Academy of Sciences and Arts, Novi Sad, Serbia
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In the nanocylinder, a cut-off from the molecular crystal, dielectric permeability tensor is investigated. Excitons in the nanocylinder arise due to the exciting of the electron subsystem of the molecule. In evaluation of dielectric permeability Dzhyaloshinskii-Pitaevskii approach is used, connected with retarded and advanced exciton Green's functions and correct use of Paulion Green's function. It turned out that refraction and absorption indices depend on configuration coordinates, having maximal values at boundary cross-sections and minimal value at central cross-section of the nanocylinder broken symmetry structure. Although it was expected that boundary conditions make higher refractive and absorptive characteristics of the nanocylinder, this appeared not to be possible because Paulion Green's function is not proportional to the exciton concentration.
DOI: 10.12693/APhysPolA.117.738
PACS numbers: 78.20.Ci, 78.40.Me