Open AccessEffects of helium ion bombardment on metallic gold and iridium thin films
Author(s) -
Sara Zuccon,
E. Napolitani,
Enrico Tessarolo,
Paola Zuppella,
Alain Jody Corso,
Francesca Gerlin,
Matteo Nardello,
Maria Guglielmina Pelizzo
Publication year - 2014
Publication title -
optical materials express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.925
H-Index - 66
ISSN - 2159-3930
DOI - 10.1364/ome.5.000176
Subject(s) - materials science , iridium , thin film , ion , helium , metal , nanotechnology , optoelectronics , atomic physics , metallurgy , chemistry , catalysis , biochemistry , physics , organic chemistry
Single layer mirrors have been prepared by evaporating gold and iridium on silicon substrates. The samples have been exposed to 4 keV He + ion flux at different total fluences, simulating the effect of solar wind ions on optical coatings. We show that the ion implantation significantly affects the optical characteristics of the metallic films. The phenomena are explained and modeled also considering the related material modifications observed with chemical and morphological analysis. (C) 2014 Optical Society of Americ