Synthesis of high purity metal oxide nanoparticles for optical applications

C. Baker; W. Kim; E. J. Friebele; G. Villalobos; J. Frantz; L. B. Shaw; B. Sadowski; J. Fontana; M. Dubinskii; J. Zhang; J. Sanghera

doi:10.1117/12.2061082

10 September 2014 Synthesis of high purity metal oxide nanoparticles for optical applications

C. Baker, W. Kim, E. J. Friebele, G. Villalobos, J. Frantz, L. B. Shaw, B. Sadowski, J. Fontana, M. Dubinskii, J. Zhang, J. Sanghera

Author Affiliations +

Proceedings Volume 9161, Nanophotonic Materials XI; 91610D (2014) https://doi.org/10.1117/12.2061082
Event: SPIE NanoScience + Engineering, 2014, San Diego, California, United States

Abstract

In this paper we present our recent research results in synthesizing various metal oxide nanoparticles for use as laser gain media (solid state as well as fiber lasers) and transparent ceramic windows via two separate techniques, co-precipitation and flame spray pyrolysis. The nanoparticles were pressed into ceramic discs that exhibited optical transmission approaching the theoretical limit and showed very high optical-to-optical lasing slope efficiency. We have also synthesized sesquioxide nanoparticles using a Flame Spray Pyrolysis (FSP) technique that leads to the synthesis of a metastable phase of sesquioxide which allows fabricating excellent optical quality transparent windows with very fine grain sizes. Finally, we present our research in the synthesis of rare earth doped boehmite nanoparticles where the rareearth ion is encased in a cage of aluminum and oxygen to prevent ion-ion proximity and energy transfer. The preforms have been drawn into fibers exhibiting long lifetimes and high laser efficiencies.

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C. Baker, C. Baker, W. Kim, W. Kim, E. J. Friebele, E. J. Friebele, G. Villalobos, G. Villalobos, J. Frantz, J. Frantz, L. B. Shaw, L. B. Shaw, B. Sadowski, B. Sadowski, J. Fontana, J. Fontana, M. Dubinskii, M. Dubinskii, J. Zhang, J. Zhang, J. Sanghera, J. Sanghera, "Synthesis of high purity metal oxide nanoparticles for optical applications", Proc. SPIE 9161, Nanophotonic Materials XI, 91610D (10 September 2014); doi: 10.1117/12.2061082; https://doi.org/10.1117/12.2061082

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