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Meeting Materials Science & Technology 2020
Symposium Late News Poster Session
Presentation Title Single and Multi-dopant Diffusion in YAG Ceramics for Lasers
Author(s) Thomas Rudzik, Zachary Seeley, Nerine Cherepy, Stephen Payne
On-Site Speaker (Planned) Thomas Rudzik
Abstract Scope In this work, the effects of diffusion on Yb, Lu, and Nd doping profiles in Yttrium Aluminum Garnet (YAG) ceramic composites were studied in the context of designing specialized laser waveguides. Inkjet printing and cold pressing were used to create green bodies with multiple layers, each incorporating a different dopant. They were then consolidated using a maximum temperature of 1750C or 1850C. Electron probe microscopy demonstrated differences in diffusion rates between the dopants and how these rates changed if another dopant diffused in the opposite direction. The results of this study should enable better prediction of diffusion distances of these dopants in YAG, thereby facilitating the design of composites requiring a specific geometry of these dopants to achieve a desired functionality. This work was sponsored by LLNL LDRD 19-ERD-006 and was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under contract DE-AC52-07NA27344. LLNL-ABS-813963.


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Single and Multi-dopant Diffusion in YAG Ceramics for Lasers

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