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Conferences > NOMA > 2015 > NT2C > NT2C.6

Control of Tm-doped Nanocrystal Precipitation and Upconversion in Glass-ceramics using CO2 laser

Dong-Seon Kim, Jin-Ho Lee, and Ki-Soo Lim

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Abstract

Formation of CaF2 nanocrystals codoped with Tm and Yb ions in glass-ceramics has been controlled by power and exposure time of CO2 laser beam. Micro x-ray diffraction analysis showed two phases of CaF2 and Ca2SiO4. The glass-ceramics containing nanocrystals showed much enhanced upconversion emission from Tm3+ ions under 980 nm excitation due to energy transfer from Yb3+ to Tm3+ ions.

© 2015 Optical Society of America

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