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1 July 2003 Rare-earth oxide: aluminum oxide for midrange IR devices
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Abstract
Glass and glass fibers formed from rare earth (RE) oxide-aluminum oxide compositions (REAlTM glasses) have properties similar to sapphire. They exhibit infrared transmission to wavelengths ~ 5000 nm; are hard and strong, thermally stable to ~ 1000°C, highly resistant to attack by aqueous solutions; and can be made into homogeneous products that contain large concentrations of optically active dopants. This paper describes the synthesis, optical properties, fluorescence lifetime measurements of Er3+- and Ho3+-doped glasses, and in-progress resaerch on materials that emit in the 2000-3000 nm wavelength range of interest for medical device applications. Effects of host glass compsition and dopant concentrations up to 32 mole% are presented.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Richard Weber, Ronald W. Waynant, Ilko K. Ilev, Thomas Key, and Paul Nordine "Rare-earth oxide: aluminum oxide for midrange IR devices", Proc. SPIE 4957, Optical Fibers and Sensors for Medical Applications III, (1 July 2003); https://doi.org/10.1117/12.485589
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