caa a22 4500 606243828 CHVBK 20210128101326.0 cr unu---uuuuu 210128e20150301xx s 000 0 eng 10.1007/s12596-014-0231-8 doi (NATIONALLICENCE)springer-10.1007/s12596-014-0231-8 Optical properties of layers of symmetric molecular nanofilms [Elektronische Daten] [Igor Šetrajčić, Dragana Rodić, Stevan Armaković, Jovan Šetrajčić] 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, refraction, reflection and transparency indices were determined, and the influences of boundary parameters on occurrence of a very selective and strictly discrete absorption, refraction and transparency were analyzed. What we have found particularly interesting is the significant percentage of reflected and transparent electromagnetic IR radiation in the nanofilm, although bulk samples of the same crystallographic structure are complete absorbers of this spectrum. The Optical Society of India, 2015 Thin film nationallicence Excitons nationallicence Permittivity nationallicence Absorption nationallicence Refraction nationallicence Reflection nationallicence Transparency nationallicence Šetrajčić Igor Department of Physics, University of Novi Sad, Faculty of Sciences, Trg D. Obradovica 4, 21000, Novi Sad, Vojvodina, Serbia aut Rodić Dragana Department of Physics, University of Novi Sad, Faculty of Sciences, Trg D. Obradovica 4, 21000, Novi Sad, Vojvodina, Serbia aut Armaković Stevan Department of Physics, University of Novi Sad, Faculty of Sciences, Trg D. Obradovica 4, 21000, Novi Sad, Vojvodina, Serbia aut Šetrajčić Jovan Department of Physics, University of Novi Sad, Faculty of Sciences, Trg D. Obradovica 4, 21000, Novi Sad, Vojvodina, Serbia aut Journal of Optics Springer India 44/1(2015-03-01), 1-6 0972-8821 44:1<1 2015 44 12596 https://doi.org/10.1007/s12596-014-0231-8 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s12596-014-0231-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Šetrajčić Igor Department of Physics, University of Novi Sad, Faculty of Sciences, Trg D. Obradovica 4, 21000, Novi Sad, Vojvodina, Serbia aut NATIONALLICENCE 700 1- Rodić Dragana Department of Physics, University of Novi Sad, Faculty of Sciences, Trg D. Obradovica 4, 21000, Novi Sad, Vojvodina, Serbia aut NATIONALLICENCE 700 1- Armaković Stevan Department of Physics, University of Novi Sad, Faculty of Sciences, Trg D. Obradovica 4, 21000, Novi Sad, Vojvodina, Serbia aut NATIONALLICENCE 700 1- Šetrajčić Jovan Department of Physics, University of Novi Sad, Faculty of Sciences, Trg D. Obradovica 4, 21000, Novi Sad, Vojvodina, Serbia aut NATIONALLICENCE 773 0- Journal of Optics Springer India 44/1(2015-03-01), 1-6 0972-8821 44:1<1 2015 44 12596