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Vol 10, Issue 1, 2014
Pages: 305 - 311
Research article
Nonmetallic materials
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Published: 24.04.2014. Research article Nonmetallic materials

SOME OPTICAL PROPERTIES OF SYMMETRICALLY PERTURBED 4-LAYER MOLECULAR CRYSTALLINE ULTRATHIN FILMS

By
S.M. Vučenović ,
S.M. Vučenović
Contact S.M. Vučenović

Prirodno-matematički fakultet, University of Banja Luka , Banja Luka , Bosnia and Herzegovina

B. Škipina ,
B. Škipina

Tehnološki fakultet, University of Banja Luka , Banja Luka , Bosnia and Herzegovina

S.S. Pelemiš Pelemiš ,
S.S. Pelemiš Pelemiš

Tehnološki fakultet , University of East Sarajevo , Lukavica , Bosnia and Herzegovina

D. Rodić ,
D. Rodić

Prirodno-matematički fakultet, University of Novi Sad , Novi Sad , Serbia

I.J. Šetrajčić ,
I.J. Šetrajčić

Prirodno-matematički fakultet, University of Novi Sad , Novi Sad , Serbia

S. Armaković ,
S. Armaković

Prirodno-matematički fakultet , University of Novi Sad , Novi Sad , Serbia

J.P. Šetrajčić
J.P. Šetrajčić

Prirodno-matematički fakultet, University of Novi Sad , Novi Sad , Serbia

Abstract

The changes of optical properties under boundary presence in molecular crystal nanofilm were theoretically investigated in this work. The dispersion law and states of excitons as well as their space distribution along boundary direction have been determined using adjusted Green’s function method and also by combined analytical and numerical calculations. We study the basic micro and macroscopic physical characteristics of symmetric ultrathin molecular crystalline films and one can 
see that essential optical properties of these systems arise with perturbation conditions, which appear at their surface layers. On the basis of real and imaginary part of relative permittivity, the absorption reflection and transparent indices were determined, and the influences of boundary parameters on occurrence of a very selective and strictly discrete absorption were analyzed. 

Funding Statement

Ovaj rad je dijelom financiran od strane Ministarstva za obrazovanje, nauku i tehnologiju Republike Srbije (Grant Nos.: ON-171039 i TR-34019), kao i Ministarstva nauke i tehnologije Republike Srpske (br.19/6-020/961-23/12).

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