Enhanced durable silver mirrors with ion beam assisted deposition

Jue Wang; Leonard Wamboldt; Jason S. Ballou; Timothy Soucy

doi:10.1117/12.2599905

12 September 2021 Enhanced durable silver mirrors with ion beam assisted deposition

Jue Wang, Leonard Wamboldt, Jason S. Ballou, Timothy Soucy

Proceedings Volume 11872, Advances in Optical Thin Films VII; 118720L (2021) https://doi.org/10.1117/12.2599905
Event: SPIE Optical Systems Design, 2021, Online Only

Abstract

Protective and enhanced Silver coatings enable broadband high reflectance and durability. Energetic deposition provides densified layers to protect Silver mirrors and enhance optical reflectance in desired spectral bands. We employed variable angle spectroscopic ellipsometry to analysis ion beam assisted SiO₂ and Nb₂O₅ films for optimizing enhanced silver performance in the near UV. We generated a visualized field guide for coating process development based on spectral reflectance measurement. Adjusted ion beam assisted deposition parameters included ion energies, ion currents, gas flow rates and deposition rates. Appropriate ion interaction with the deposited materials led to an increase of both film homogeneity and densification. Accelerated UV ozone exposure tests confirmed that the optimized ion beam assisted deposition yielded stable optical performance.

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Citation Download Citation

Jue Wang, Leonard Wamboldt, Jason S. Ballou, and Timothy Soucy "Enhanced durable silver mirrors with ion beam assisted deposition", Proc. SPIE 11872, Advances in Optical Thin Films VII, 118720L (12 September 2021); https://doi.org/10.1117/12.2599905

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