Chirita, ArcadyPrilepov, VladimirPopescu, MihaiAndries, IonCaraman, MihailJidcov, Iurie2024-09-092024-09-092015CHIRITA, Arcady; Vladimir PRILEPOV; Mihai POPESCU; Ion ANDRIES; Mihail CARAMAN și Iurie JIDCOV, Iurie. Effect of optical coating in the thin-film system of chalcogenide glassy semiconductor-dielectric when recording the holographic optical information . Journal of Optoelectronics and Advanced Materials, 2015. vol. 17, pp. 925-929. ISSN 1454-4164.1454-4164https://msuir.usm.md/handle/123456789/15999CHIRITA, Arcady; Vladimir PRILEPOV; Mihai POPESCU; Ion ANDRIES; Mihail CARAMAN și Iurie JIDCOV, Iurie. Effect of optical coating in the thin-film system of chalcogenide glassy semiconductor-dielectric when recording the holographic optical information . Journal of Optoelectronics and Advanced Materials, 2015. vol. 17, pp. 925-929. ISSN 1454-4164.In this paper we show that the possibility of obtaining the high values of efficiency of relief-phase holographic gratings formed in the photo-thermoplastic recording process holds not only due to the non-sinusoidal profile form, but also due to the effect of optical coating that appears in the two-layer system of photo-semiconductor – deformed thermoplastic. Analyzed are the conditions, under which takes place the antireflection optical coating, reducing unwanted reflections from surfaces and thereby enhancing efficiency. It is shown that by careful choice of the thicknesses and refractive indices of the layers materials the efficiency of holographic gratings can be improved by 2-5 %.enPhoto-thermoplastic carriersHolographic gratingsNon-sinusoidal profileDiffraction efficiencyImpact of optical coatingArticle