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11 September 2020 A strategy to improve the long-term stability of low-stress e-beam coatings
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Abstract
Plasma ion assisted deposition (PIAD) was employed to prepare a dense capping layer (seal the top surface only) or shell layer (seal both the top surface and the sidewall) of an e-beam coating. The lateral water vapor diffusion was confirmed by a monolayer e-beam coating with a capping layer. The stress evolution and spectral shift of the multilayer e-beam coatings with/without capping/shell layers were comparatively studied. The protective effect of the shell layer on the e-beam coating was further investigated by water bath treatment. The experimental results proved that the PIAD shell layer can be used to address the time-dependent and environmental reliability issues of the e-beam coatings for high-power laser applications.
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© (2020) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Meiping Zhu, Tingting Zeng, Chaoyi Yin, Yuanan Zhao, and Jianda Shao "A strategy to improve the long-term stability of low-stress e-beam coatings", Proc. SPIE 11514, Laser-induced Damage in Optical Materials 2020, 1151414 (11 September 2020); https://doi.org/10.1117/12.2570984
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