Optical Coatings: Applications and Metrology +

The development of optical coatings has experienced rapid growth in the last few decades for a wide range of applications. The strong demand is motivated by the progress of new-generation sources, large-scale facilities, new lithography arrangements, innovative methods for materials science investigation, biosensors, and instruments for space and solar physics observations. The research activities carried out at the Padova branch of the Institute for Photonics and Nanotechnologies of the National Research Council range from the design and characterization of optical components for space activities to the development of nanostructured coatings for tools, such as biosensors and surface plasmon resonance devices. In recent years, we have dealt with the optical characterization of 2D materials in order to explore the feasibility of innovative optical elements designed and optimized to cover wide spectral ranges. In this manuscript, we show the results on the optical characterizations of MoS and graphene samples, both monolayers, deposited on thick SiO film. We present the preliminary and comparative analysis of the samples in question, showing a direct comparison with the optical performance of the pristine SiO over the visible spectral range.