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Faculty of natural sciences and mathematics, University of Banja Luka , Banja Luka , Bosnia and Herzegovina
Faculty of natural sciences and mathematics, University of Novi Sad , Novi Sad , Serbia
Faculty of natural sciences and mathematics, University of Novi Sad , Novi Sad , Serbia
Based on microscopic (exciton) theory of optical properties of symmetrically perturbed ultrathin
molecular films, the absorption, reflection and transparency indices were formulated and presented in
the function of frequencies of external electromagnetic field in near IR region.
It has been showed that all optical properties depend on the position of the crystal plane with regard
on boundary planes of the film. We have determined and analyzed optical properties relations for the
whole film structure based on the consideration for multiple reflection, absorption and transparency
in those multilayered structure.
The three-layered dielectric nanofilms with different boundary conditions on surfaces were analyzed
and some discrete resonant absorption lines were obtained. Their number, position and distribution
depend on the boundary parameter values, i.e. on the type and the technological process of their
preparation/fabrication. Practically monochromatic absorption may occur. Unlike the corresponding
balk-samples which are total absorbers throughout the near IR region, in ultrathin films will appear
selective and discrete reflection and transparency too.
These results could give a great contribution in optical engineering of nanostructures, especially in
technology of designing of new electronic and photonic equipment, and for nanoparticles construction
for drug carrier/delivery in nanomedicine
Istraživanja čiji su rezultati izloženi u ovom radu delimično su finansirala: Ministarstvo prosvete, nauke i tehnološkog razvoja Republike Srbije (Projekti ON171039 i TR34019) i Ministarstvo nauke i tehnologije Republike Srpske (Projekat 19/6-020/961-16/15) i finansijski potpomogao Sekretarijat za nauku i tehnološki razvoj AP Vojvodine (projekt 114- 451-927).
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