Erbium-doped transparent glass ceramics can produce copious upconversion fluorescence originating from both the glassy and nanocrystalline phases. From the optical spectroscopic data, we conclude that erbium ions in the glassy phase produce upconversion via excited state absorption, and those in the nanocrystalline phase undergo upconversion by energy transfer.
© 2004 Optical Society of America
G. C. Jones and S. N. Houde-Walter, "Elucidating upconversion mechanisms in erbium-doped transparent glass ceramic," in Frontiers in Optics 2004/Laser Science XXII/Diffractive Optics and Micro-Optics/Optical Fabrication and Testing, OSA Technical Digest Series (Optical Society of America, 2004), paper FTuS4.
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