Optical coatings interaction with low energy particles: stability issue

Alain J. Corso; Giovanni Santi; Marta Padovani; Dominic Doyle; Maria G. Pelizzo

doi:10.1117/12.2632426

29 August 2022 Optical coatings interaction with low energy particles: stability issue

Alain J. Corso, Giovanni Santi, Marta Padovani, Dominic Doyle, Maria G. Pelizzo

Proceedings Volume 12188, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation V; 121884V (2022) https://doi.org/10.1117/12.2632426
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

A systematic characterization of optical coatings for space application has been carried out to evaluate the performance drop upon low energy protons, ions exposure. This systematic investigation was supported by a project funded by the European Space Agency. Single layers and bi-layers for visible and near-infrared applications have been irradiated with different ions energies and fluences. Moreover, since the irradiation experiments have been performed in large-scale facilities also the flux has been used as a parameter, selecting some values that were a good compromise between the facility occupation time and the real irradiation conditions faced during a space mission. In this work, a summary of the obtained results is reported. Results show that the performance drop is highly dependent on the fluence and the implantation energy, while only for some materials the flux seems to have an effect.

Citation Download Citation

Alain J. Corso, Giovanni Santi, Marta Padovani, Dominic Doyle, and Maria G. Pelizzo "Optical coatings interaction with low energy particles: stability issue", Proc. SPIE 12188, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation V, 121884V (29 August 2022); https://doi.org/10.1117/12.2632426

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